# HISET Exam Prep 2026 vs TACHS Prep

The clearest difference is ratings volume: HISET Exam Prep 2026 at 254 against TACHS Prep's 1. HISET Exam Prep 2026 also leads on iOS requirement (15.1 vs 17.0). TACHS Prep's advantage is rating (5.0 vs 4.7). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. HISET Exam Prep 2026 sells 10 in-app purchases, starting at $5.99 per 7 days and TACHS Prep sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

TACHS Prep holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: HISET Exam Prep 2026 has 254 ratings behind it against 1, so its average is the more settled of the two.

HISET Exam Prep 2026 ships an update every 10 days, TACHS Prep every 5 days. The most recent releases landed on November 8, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | HISET Exam Prep 2026 | TACHS Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (254 ratings)](https://appshunter.io/ios/app/hiset-exam-prep-2026/id6740566298/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tachs-prep-practice-tests/id6809621069/reviews)** |
| Number of ratings | **254** | 1 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 5 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 128 MB | 23 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Prepia Inc](https://appshunter.io/developer/1843388606) | [Simple Tree LLC](https://appshunter.io/developer/328416954) |

## What reviewers say

### HISET Exam Prep 2026

[App page](https://appshunter.io/ios/app/hiset-exam-prep-2026/id6740566298)

Prepare for your HISET exams with over 1000 practice questions and realistic simulations. Study smarter with adaptive learning, detailed explanations, and progress tracking. Get started for free and unlock premium features for comprehensive exam coverage.

**Highlights:** 1000+ expert-written practice questions, Realistic timed exam simulator, Adaptive learning algorithm, Instant detailed explanations, Performance analytics dashboard, Offline study capability, Progress tracking with predictions

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $5.99 | per 7 days |
| Weekly Subscription | $7.99 | per 7 days |
| Weekly Subscription | $11.99 | per 7 days |
| Monthly Subscription | $16.99 | per month |
| Monthly Subscription | $16.99 | per month |
| 3 Months Subscription | $29.99 | per 3 months |
| 6 Months Subscription | $39.99 | per 6 months |
| 6 Months Subscription | $39.99 | per 6 months |
| 6 Months Subscription | $39.99 | per 6 months |
| 6 Months Subscription | $49.99 | per 6 months |


### 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 HISET Exam Prep 2026 free?

HISET Exam Prep 2026 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, HISET Exam Prep 2026 or TACHS Prep?

TACHS Prep is rated higher. HISET Exam Prep 2026 averages 4.7 out of 5 from 254 ratings, while TACHS Prep averages 5.0 from 1 ratings.

### Do HISET Exam Prep 2026 or TACHS Prep have ads?

Neither HISET Exam Prep 2026 nor TACHS Prep shows ads.

### Which is updated more often, HISET Exam Prep 2026 or TACHS Prep?

HISET Exam Prep 2026 ships an update every 10 days, and TACHS Prep every 5 days. Most recently, HISET Exam Prep 2026 was updated on November 8, 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.*