Comparison

IQ Test vs TACHS Prep

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

IQ Test

Measure your cognitive abilities with an adaptive IQ test. Receive a detailed score, brain map, and career suggestions. Includes brain games to train your mind and track your progress over time.

Highlights
  • Adaptive IQ testing
  • 7 cognitive skill measurement
  • Detailed brain map
  • Career and learning style suggestions
  • Progress tracking
  • Brain training games
Features
Read full description

What's your real IQ? Take an adaptive IQ test that measures 7 cognitive skills. In about 25 minutes you get your score, your percentile for your age and a full brain map. WHAT YOU GET • IQ score and rank: see exactly where you sit on the bell curve for your age group • Brain map: separate scores for pattern recognition, number sequences, logical reasoning, verbal analogies, spatial reasoning, working memory and processing speed • Career match and learning style: careers that suit how you think, and how you learn best • Progress tracking: retake the test and follow every result over time • Score card: share your result and challenge friends to beat it THE TEST • 28–42 adaptive questions that adjust to your level • 7 skill categories, about 25 minutes • Scoring calibrated to your age TRAIN YOUR BRAIN • 6 brain games with 400+ levels: path memory, "what changed?", number hunt, logic grids, a geography quiz and more • Daily quests and streaks to build the habit No ads. No account needed. Privacy Policy: https://docs.google.com/document/d/e/2PACX-1vR7H5pAjdxmq_A4HZAuJhxPQHtFxIudxxSF46IiUQl2n0o4foEdIjt_ps1vfrZDazkUpUd106OjtgTl/pub Terms of Use: https://docs.google.com/document/d/e/2PACX-1vReWwlhMIieSAFYNZ5c0DnWBftQ9otwTpGLf7-ifS1bx1aO8q3hPaGhBGeVh5y-1MWH3tLLYGSeL4GU/pub

About

TACHS Prep

Prepare for the TACHS exam with timed subtests, detailed worked answers, and a personalized study plan. This app simulates the actual test format, offering practice questions, lessons, and adaptive modes to identify weak areas and build confidence.

Highlights
  • Timed subtests simulating exam format
  • Detailed worked answers with explanations
  • Personalized study plan based on diagnostic
  • Adaptive practice mode
  • 1,940 practice questions
  • 93 lessons with examples
  • iPad and Apple Pencil support
Features
Read full description

Most TACHS prep starts with drilling. That is the fastest way to waste the time you have, because you cannot study everything at once and you do not yet know what is weak. This app starts with a 28-question diagnostic, about half an hour. It is not a score. It tells you where to begin, and builds a study plan around your test date. BUILT FOR THE TEST AS IT IS NOW The TACHS runs on screen in six timed subtests, one after another: Reading, Written Expression, Mathematics, and three short Ability subtests of figure puzzles. About 2 hours 10 minutes of testing, with a short break between subtests. Inside a subtest you can skip, mark and come back; once you submit a subtest you cannot return to it. There is no penalty for a wrong answer. Practice here runs by those same rules: six subtests, each on its own clock, answer choices lettered the way the test letters them, a cross-out tool for choices you have ruled out, a highlighter on the reading passages, and a basic calculator in the math subtest, the way the test platform now provides one. The format itself is a lesson, so the shape of the day is already familiar. THE ABILITY SECTION, DRAWN Figure matrices, paper folding, figure classification: puzzles most students have never seen before test day. Here they are drawn on screen, hundreds of them, with a worked explanation of the rule behind each one and short lessons on how to read them. WORKED ANSWERS, NOT ANSWER KEYS Every question shows the method, step by step, and then checks the answer against it. Get one wrong and you find out why, not just which letter you missed. MADE FOR iPad, INCLUDING APPLE PENCIL On iPad the question sits beside a scratch pad you can write on with Apple Pencil or a finger, and your working stays next to the worked explanation afterwards so you can compare them line by line. Reading passages open side by side with their questions. WHAT IS INSIDE - 1,940 practice questions across the four sections - 93 lessons, each with worked examples - 89 reading and Written Expression passage sets - Full practice tests in the six-subtest format, about 176 questions each, drawn fresh to the same blueprint every time so a test is worth sitting more than once - Adaptive Practice, a shorter mode that picks what to ask next from how you are doing and tells you the difficulty level you were working at in each section - A one-page report your child can send you when they want to show how it is going The pass unlocks all of it. What stays free is next. FREE, PERMANENTLY - The 28-question diagnostic and the study plan it builds - Your error journal and your progress, always - 10 new questions a day, up to 150 in total - Unlimited redo of anything you have already answered Your progress stays on this device and in your own iCloud, and is never locked: with or without the pass, and after it expires. THE PASS: ONE PAYMENT, NO AUTO-RENEWAL It lasts 365 days from the day you buy it, it does not renew itself, and you will not be charged again. No subscription to remember to cancel. It unlocks every full practice test, the whole lesson library, and the whole question bank with no daily limit. NO DATA COLLECTED No account. No sign-up. No analytics, no advertising, no tracking, and nothing sold to anyone. Your work syncs privately between your own devices through your iCloud account and goes nowhere else. The App Privacy section on this page says "Data Not Collected" because that is literally true. Written for eighth graders sitting the TACHS for the Archdiocese of New York, the Diocese of Brooklyn and Queens, and the Diocese of Rockville Centre. Not affiliated with, or endorsed by, Riverside Insights or any diocese or school.

Screenshots

IQ Test4 screens
TACHS Prep4 screens

Verdict

The call

The clearest difference is update cadence: TACHS Prep at every 5 days against IQ Test's every 6 weeks. IQ Test's advantage is iOS requirement (15.1 vs 17.0). On price, rating, ratings volume and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. IQ Test sells 2 in-app purchases, starting at $2.99 per month and TACHS Prep sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for IQ Test against 5.0 for TACHS Prep. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

IQ Test ships an update every 6 weeks, TACHS Prep every 5 days. The most recent releases landed on November 9, 2026 and November 10, 2026 respectively.

Scorecard2 real differences · 7 level
IQ Test versus TACHS Prep: the parameters behind the verdict, then further details
ParameterIQ TestTACHS Prep
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Number of ratings11
Update frequencyEvery 6 weeksEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better17.0
Further details — not scored
Size46 MB23 MB
Age rating4+4+
DeveloperOnur YuksekkayaSimple Tree LLC

Customer experience

IQ Test

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

TACHS Prep

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

IQ Test

Subscriptions2
  • Monthly Premium$2.991 Month
  • BrainX Pro Yearly1 Year trial$29.991 Year
1 purchases

TACHS Prep

One-time1
  • 365-Day Pass$39.99

Questions

Is IQ Test free?
IQ Test is free to download, with in-app purchases available.
Is TACHS Prep free?
TACHS Prep is free to download, with in-app purchases available.
Which has better reviews, IQ Test or TACHS Prep?
IQ Test and TACHS Prep are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do IQ Test or TACHS Prep have ads?
Neither IQ Test nor TACHS Prep shows ads.
Which is updated more often, IQ Test or TACHS Prep?
IQ Test ships an update every 6 weeks, and TACHS Prep every 5 days. Most recently, IQ Test was updated on November 9, 2026 and TACHS Prep on November 10, 2026.

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