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AI ACT tutor · New · Mac & Windows

The AI ACT tutor that tells you
exactly what to study today.

Set your target composite and test date. Sia plans every day in between, with ACT practice tests at real pacing and coaching on every mistake. Free on Mac and Windows.

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Start for free Create a free account, no credit card
2M+ students Questions matched to your gaps Full-length practice tests Free tier, no credit card
Set your gap in 30 seconds
Live score forecast
Build your ACT prep path

Move the sliders. Sia forecasts the gain and maps the days.

Your score gap
Where you are Where you're going
19
136
24
136
39days
SoonerLater
Sia forecast
+3 to +5
composite points in 3 weeks
based on 8 hrs / week to your test date
8 hrs / weekStudy commitment
2 full practice testsBefore exam day
Daily re-planAdapts to your results
This is a projection from typical gains at your starting band, not a promise. Inside the app, Sia rebuilds it from your real diagnostic after every session.
Realistic with consistent prep
Download on Mac and Windows, or sign up and start in your browser. Your plan is built in about 3 minutes.
Enhanced ACT at a glance Last reviewed

The core Enhanced ACT takes about 2 hours 5 minutes: English, Math and Reading, with Science now optional and scored separately. The composite runs 1 to 36 and averages the three core sections. The next national test date is Saturday 19 September 2026.

2 hr 5 min
Core testing time: English, Math and Reading
131 questions
50 English, 45 Math, 36 Reading
1 to 36
Composite is the average of English, Math and Reading
Science optional
40 minutes, 40 questions, reported as a separate score
4 choices
Math items now have four answer options, not five
Paper or digital
Your choice at national test centers

Exam format and dates are set by ACT, Inc. AskSia is an independent study tool and is not affiliated with or endorsed by ACT, Inc. Always confirm dates, deadlines and test options on the official ACT site before you register.

How the ACT agent works

From unknown starting point to a plan you can follow.

Three steps turn your current composite, target and test date into a plan that changes as you improve. It takes about three minutes and it is free.

AskSia test prep exam selection with the ACT highlighted, scored 1 to 36 across English, Math and Reading
Step 1

Choose the ACT

Pick your exam and Sia loads the Enhanced ACT planner: a 1 to 36 composite across English, Math and Reading. A short diagnostic then sets your real starting range.

AskSia ACT planner with current and target composite sliders and the Sia forecast panel
Step 2

Set the gap, see the forecast

Drag where you are and where you are going. Sia forecasts the gain, your weekly pace and how many practice exams fit the window, and tells you plainly whether the target is realistic.

AskSia ACT 60-day plan calendar across four phases: Diagnose, Foundation Build, Targeted Drill, Final Mocks
Step 3

Follow a plan with a job for every day

Four phases: Diagnose, Foundation Build, Targeted Drill, Final Mocks. Every day is a named session, a prediction exam is scheduled for your exact test date, and each result rewrites tomorrow.

What the agent does once the plan exists
  • Runs the session for you. Opens the app to today's work. No deciding what to study.
  • Drills questions chosen for your gaps, AskSia-written to the Enhanced ACT format, at real section pacing.
  • Coaches every miss by naming the wrong answer you chose and the trap behind it.
  • Sits full-length ACT practice tests, including a prediction exam for your exact test date, and scores them composite and section.
  • Re-forecasts your score after every session and rewrites tomorrow.
  • Reads your own material. Drop in a school mock, a worksheet, a screenshot. It marks it and folds the errors into the plan.
A worked question

What a marked answer actually looks like.

One question in the ACT English format, worked through the way the answer key reads it, with the point that goes missing flagged at each step.

English, redundancy and concision

A passage contains this sentence, with one portion underlined for replacement. The hand-drawn maps in the museum’s new wing are extremely fragile and delicate, so they are displayed under low light and rotated out of the case every three months. Alongside NO CHANGE, the replacements offered are fragile, of a fragile and delicate nature, and delicate as well as fragile.

Nothing underlined is ungrammatical. So what is the error, and which replacement does the answer key want?

ACT English: Knowledge of Language, one of the reporting categories on the Enhanced ACT. Written by AskSia to the published Enhanced ACT format. AskSia does not reproduce official ACT questions or past papers.

1Name the item type
“Fragile” and “delicate” are doing the same job in this sentence, so one of them carries no information. This is a redundancy item, not a punctuation item, and “extremely” is emphasis rather than the error.
Where the point goes. Hunting for a comma error on a redundancy item burns most of the forty-two seconds a question that 50 items in 35 minutes leaves you. Classify the item before you start comparing replacements.
2Rank by information
Two of the replacements keep both adjectives, one wrapping them in “of a … nature” and one reversing their order. NO CHANGE keeps both and adds an intensifier. Only fragile deletes the duplicated meaning, so fragile is the key.
Where the point goes. Shortest is usually right on this item type, but only because shortest usually means non-redundant. Picking by word count alone fails the moment the short option deletes something the sentence needs.
3Read it back in place
“The hand-drawn maps in the museum’s new wing are fragile, so they are displayed under low light and rotated out of the case every three months.” The cause and effect still holds and the clause after the comma is untouched.
Where the point goes. The replacement has to work inside the whole sentence, not just on its own line. A choice that reads well in isolation and breaks the clause it introduces is the standard distractor on this section.
Built around your score goal

A tutor, planner and test center in one agent.

Most tools hand you questions and leave. AskSia plans, drills, coaches and re-plans, the way a great private tutor would, for a fraction of the price.

ACTActive

ACT 60-Day Push

19→24
Goal
2 / 60
Days
Day 3
Next day
4
Phases
Latest estimate · Day 1 diagnostic
17-21
midpoint ~19 · +0.6 for staying consistent
NOW ~19.6
 SELF 19   TARGET 24
English 18-22Math 17-21
Diagnose Foundation Build Targeted Drill Final Mocks
DAY
1
Baseline day
🏆 +0.3
DAY
2
Start clean
🏆 +0.8
DAY
3
Math footing
DAY
4
English clean-up
DAY
5
Reading habits
DAY
6
Mixed support
Adaptive day-by-day plan

A plan that re-writes itself every single day.

Your plan isn't a static PDF. Sia splits your run into four phases (Diagnose, Foundation Build, Targeted Drill, Final Mocks), then re-forecasts your score after every session and reshuffles tomorrow around your weakest skills.

  • A live score estimate that converges toward your real exam score
  • Daily targeted drills aimed at your lowest skills first
  • Practice-test checkpoints that tell you if you're on pace for test day
ACT Math · Q27Missed

Ana drives 120 miles to campus at 30 miles per hour and returns along the same route at 50 miles per hour. What is her average speed, in miles per hour, for the round trip?

B 40 · your answer
A 37.5 · correct
SWhy you picked B

You averaged the two speeds. But she spends more time at 30 mph, so the trip is weighted toward the slower leg. Average speed = total distance ÷ total time = 240 ÷ (4 + 2.4) = 37.5. No formula sheet on the ACT; the check is total ÷ total, every time.

Per-mistake trap coaching

It tells you why you got it wrong, not just the right letter.

Every well-written ACT question has wrong answers engineered to tempt a specific mistake. When you miss, Sia names the exact wrong answer you chose and explains the trap you fell for: the misread, the partial calculation, the plausible but wrong step.

  • Per-distractor explanations. Almost no other tool coaches per wrong answer
  • Trap types modelled on the published Enhanced ACT question design
  • Stop repeating the same mistakes, which is where real score gains come from
ACT Math 31:42 Mark for review
QUESTION 27 OF 45

In triangle ABC shown below, a = 5, b = 8, and the measure of angle C is 60°. What is the length, in units, of side c?

(Note: The law of cosines states c² = a² + b² − 2ab cos C.)

60° C B A b = 8 a = 5 c = ?
A7
B√129
C13
D3
Exam-format fidelity

ACT practice built to the Enhanced ACT format.

Full-screen test interface, real section timing, four answer choices, and no formula sheet: routine formulas are on you, and when an unusual one is needed it appears inside the item, exactly like the real ACT. Every question is written by AskSia and picked for the skills you are losing points on.

  • AskSia-written questions and full practice tests, in the Enhanced ACT format
  • A Word Lab with spaced repetition, built from the words you actually missed
  • A live score estimate that converges toward your real exam score
Why AskSia

Four things the big players do not do.

Web apps hand you a question dump. Human tutors cost thousands. Official prep has no coaching. AskSia is a different category.

An agent, not a chatbot

Sia diagnoses, sets a target, builds the plan, drills you at real pacing, and re-plans around your weakest skills. vs. type-a-question tools

Exam-format and personalised

Full-screen practice with real section timing, four-choice Math and a live composite forecast, selected for your gaps. vs. flattened question dumps

Per-distractor coaching

Sia explains why the specific wrong answer looked right to you, not only which letter was correct. vs. "the answer is C"

Free to start · $79 to finish

Prep on the free tier, then get the complete bank and all practice tests for a one-time price. vs. $80-200/hour tutors

ACT practice tests

Practice tests built around your mistakes.

AskSia writes its own questions to the published Enhanced ACT format, then picks the ones you personally need. Two students on the same day get different sets, because they are failing at different things. A practice test here scores you, names the trap, and rewrites the next block of days.

Personalised

The set is chosen for you, not for everyone

Your diagnostic maps you across every English, Math and Reading skill. Sia then selects and generates questions at your level, in the skills you are actually losing points on. Fix a skill and it stops appearing. That is the whole point of an agent.

Pacing

Built for the ACT's real enemy: the clock

English gives you about 42 seconds a question; Math and Reading about 66. Sia drills you at real section pacing, shows where you burn time, and trains the skip-and-return decisions that protect a composite.

Full-length

Full-length ACT practice tests

English, Math and Reading on the real clock, with four-choice Math and optional Science. Full-screen, timed, mark for review. Same format, same pressure, plus a composite and section score at the end.

Free

Free ACT practice, no credit card

The free tier includes the diagnostic, your plan, and personalised practice questions with per-mistake coaching. The complete bank and all full-length practice tests come with the one-time $79 upgrade.

1 Sit a practice test 2 Sia names your traps 3 Your forecast moves 4 Tomorrow's plan changes
Why it runs on your desktop

A browser tab can't sit an exam with you.

The ACT gives you well under a minute per question. AskSia is built the way you will sit it: a real app on your machine, timed like the real thing, with your notes and your history in it.

Real test conditions

Full-screen exam mode with a timer, mark for review and no tab switching. Practice the way you will actually sit it.

It reads your own material

Drop in a school practice test, a screenshot, a worksheet or a PDF. Sia marks it, finds the pattern in your errors and folds it into your plan.

Works offline after launch

Drill on a plane, in a library, in a class with no wifi. Your plan and your question bank live on the machine.

It opens itself

Today's session is one click from your dock or taskbar. No login, no tab, no deciding what to study. That is why students keep the streak.

macOS 12+ (Apple silicon & Intel) Windows 10 & 11 Code signed · free tier · no credit card

On your phone right now? Sign up free in your browser, or get the iPhone app and Android app.

Loved by 2M+ students

The agent students already study with.

Sia has been running students' coursework, lectures and revision for years, across 2,000+ universities and high schools. The ACT plan is the same agent, pointed at one exam.

2M+
students worldwide
2,000+
universities & high schools
iOS & Android
★★★★★
Best Study Tool

"Love AskSia! I use it on my laptop everyday. I really like the summary and practice quizzes it creates."

M
MiniCh33se
App Store review
★★★★★
Best ai for college students

"This is hands down the best ai tool for college students!! I've been telling my friends all about it, and they're hesitant at first but they end up using it because of how useful it is."

H
Hammerboe
App Store review
★★★★★
Like this app

"My final week savior. Can't live without this for my graduate."

O
Oyhhhhhhhhhh
App Store review
★★★★★
Accurate Recording, Super Helpful for Classes

"The recording feature is really good and accurate. I use it every class, and it helps me a lot with reviewing and organizing my notes. Definitely a useful tool for students!"

B
BROLIN12138
App Store review
★★★★
Easy A+

"I love using this in class to transcribe my lectures. Never miss a word the professor says."

A
Amberrrrrrrrrrr2353
App Store review
★★★★★
Hardworking team and best recording service for AI

"Recording features are the best on the market, I can even ask question during the recording."

N
Nolan970326
App Store review

Reviews published verbatim from the Apple App Store. Score outcomes depend on your starting point, your test date and the hours you put in.

Compare ACT prep

A complete plan, not another content library.

Compare the parts that determine whether practice turns into a composite gain.

Comparison of AskSia with official practice, human tutors, and question banks for ACT prep
FeatureAskSiaOfficial practiceHuman tutorQuestion bank
Typical priceFree / $79 onceFree$80-200/hr$30-149/mo
Adaptive daily plansometimes
Questions selected for your gapssometimeslimited
Coaching on your chosen distractorsometimesrarely
Enhanced-ACT-format practice at real pacingvariesvaries
Live composite forecastlimitedlimited
Plans backwards from your datesometimes

Competitor pricing and features are typical ranges as of August 2026 and vary by provider and plan.

ACT test dates

ACT test dates 2026 to 2027, and how many days you have left.

Every national ACT date in the 2026 to 2027 testing year. Registration closes about five weeks before each test, much earlier than the SAT, so the date decision comes first. Pick yours, and Sia builds the plan backwards from it.

ACT national test dates and regular registration deadlines, 2026 to 2027
ACT test dateRegular registration deadlineDays from todayWhat a plan looks like

Dates and deadlines are set by ACT, Inc. and can change; all deadlines close at 11:59 pm Central Time, and late registration carries an added fee. The July date is not offered in New York. Confirm everything on the official ACT site before registering. AskSia is not affiliated with ACT, Inc.

Free on Mac & Windows · no credit card · plan ready in about 3 minutes
ACT vs SAT

ACT vs SAT: which should you take?

Colleges accept both equally. The real question is which test fits how you think under a clock. Here is the honest five-minute version.

Enhanced ACTDigital SAT
Core lengthAbout 2 hr 5 min2 hr 14 min
Scale1 to 36 composite400 to 1600
PaceMore questions, less time eachFewer questions, more time each
ScienceOptional, separate scoreNo science section
AdaptivityFixed form, same for everyoneModule 2 adapts to Module 1
Formula sheetNone; memorize the routine onesProvided
FormatPaper or digital, your choiceDigital only

Fast and steady under time pressure, and comfortable with a science-style section? The ACT usually suits you. Prefer fewer questions with more thinking time? Look at the SAT. The most reliable way to decide is a timed section of each; Sia can run both and tell you where you score higher.

Reach your goal

Every day is planned
backwards from your target.

Most prep tools hand you material and hope. Sia starts from the number you need and the date you need it by, then works backwards. If you fall behind the curve, tomorrow gets harder. If a skill is fixed, it stops appearing. The plan is accountable to your goal, every single day.

  • 1Set your target composite and your test date.
  • 2Sia forecasts what that gap realistically takes, and tells you when it is a stretch.
  • 3Every session moves the forecast. You always know if you are on pace.
On pace, or told why not
Sia will not tell you a 6 point composite jump in three weeks is fine. It will tell you what is reachable, and build for that.
Set my goal free or sign up free in your browser
Simple pricing

Start free. Finish for $79.

One flat price for the full Enhanced ACT plan. No subscription, no per-hour meter.

Free
$0
Free forever · no credit card
  • Diagnostic + score range
  • Day-by-day adaptive plan
  • Exam-format practice + trap coaching
  • Live score forecast as you drill
  • Complete question bank & all practice tests
  • Unlimited Word Lab & retake replays
Download free
Most popular
Full ACT Prep
$79 one-time
Everything in Free, plus:
  • Complete ACT question bank, every skill & difficulty
  • All full-length practice tests, composite & section scoring
  • Goal-locked planning, re-forecast after every session
  • Unlimited Word Lab & retake replays
  • Priority coaching on every mistake
Get the full ACT plan · $79

Less than one hour with a private tutor. One-time payment, no renewal.

Built responsibly

Who makes this, and how the numbers work.

ACT prep should improve learning without pretending to be official material or promising impossible gains. Here is where our questions, our estimates and our claims come from.

Where the questions come from

Every AskSia question is written in house against the published Enhanced ACT format: the same sections, question types, timing and answer-choice structure, including four-choice Math. Then it is generated or selected for the individual student, so the set you drill is not the set anyone else drills. We do not use, reproduce or resell official ACT questions or past papers, and we are not affiliated with or endorsed by ACT, Inc.

How the score forecast is calculated

Your diagnostic gives a score range, not a point estimate, because a 25 minute sample cannot pin a 1 to 36 composite to a single point. The forecast on this page is a projection from typical gains at your starting band and your available hours. It is a projection, not a promise, and inside the app it is recalculated from your own results after every session.

What we do not promise

We do not promise a specific score. Nobody honestly can: your result depends on your starting point, your test date and the hours you actually put in. What we commit to is a plan built backwards from your target, a forecast that updates after every session, and an honest warning when a gap is too wide for the date you picked.

What we will not claim

We do not publish composite testimonials, invented score gains or an average point lift we cannot evidence. When we have enough verified before and after ACT score reports to publish a real average, we will publish the method with it.

FAQ

Questions, answered.

The next national ACT is Saturday 19 September 2026, which opens the 2026 to 2027 testing year. The rest of the year runs 17 October and 12 December 2026, then 27 February, 10 April, 12 June and 10 July 2027. Regular registration closes about five weeks before each date, far earlier than the SAT. Full table is here; dates are set by ACT, Inc. and can change.
The core Enhanced ACT takes about 2 hours 5 minutes: English is 35 minutes for 50 questions, Math is 50 minutes for 45 questions, Reading is 40 minutes for 36 questions. Optional Science adds 40 minutes and 40 questions; the optional Writing essay adds more. The 1 to 36 composite averages English, Math and Reading.
Yes. Since the Enhanced ACT rolled out in 2025, Science no longer counts toward the composite and is reported as a separate score. Some colleges and programs still want it, so check the requirements of every school on your list before you pick your test option.
No, and no legitimate tool has them. Official ACT questions are the copyrighted property of ACT, Inc. Every AskSia question is written by AskSia, to the published Enhanced ACT format, then generated or selected for you personally based on the skills you are losing points on. What matches the real exam is the format: the same sections, question types, timing and answer-choice structure, including four-choice Math. ACT® is a registered trademark of ACT, Inc., which does not endorse or review AskSia.
Yes. AskSia is free to download on Mac and Windows, no credit card. The free tier includes the diagnostic, the adaptive day-by-day plan and personalised practice with per-mistake coaching. The optional $79 one-time upgrade adds the complete question bank and all full-length practice tests. ACT mode is newly launched and currently in beta, so you may see it improving week to week.
Colleges accept both equally, so pick the test that fits how you think under a clock. The ACT is faster paced with an optional Science section; the SAT gives more time per question and adapts between modules. See the side-by-side comparison, or our SAT prep if you lean that way. The most reliable way to decide is a timed section of each.
ACT automatically calculates a superscore, the average of your best English, Math and Reading results across all your test dates, and includes it in your score reports. Many colleges accept superscores, but policies differ, so confirm with each school on your list.
Yes. AskSia is a native desktop app for macOS 12 or later, on Apple silicon and Intel, and for Windows 10 and 11. Both builds are code signed. There are also iPhone and Android apps, and ACT prep is one of several study modes inside the same account.

Your target score is
a plan away.

Download free, take the diagnostic, and have a day-by-day plan to 22 Aug 2026 in about 3 minutes.

Free on Mac & Windows · $79 one-time for the complete question bank and all practice tests