# IQ Test vs TACHS Prep

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.

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.

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.

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.

## The numbers

| Metric | IQ Test | TACHS Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/iq-test-logic-and-intelligence/id6759832082/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/tachs-prep-practice-tests/id6809621069/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 46 MB | 23 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Onur Yuksekkaya](https://appshunter.io/developer/1865143108) | [Simple Tree LLC](https://appshunter.io/developer/328416954) |

## What reviewers say

### IQ Test

[App page](https://appshunter.io/ios/app/iq-test-logic-and-intelligence/id6759832082)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $2.99 | per month |
| BrainX Pro Yearly | $29.99 | per year |


### TACHS Prep

[App page](https://appshunter.io/ios/app/tachs-prep-practice-tests/id6809621069)

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:** macOS Compatibility, Vision Pro support, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 365-Day Pass | $39.99 | one-time |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*