# Human Resources Leader Prep vs Math. Trainer App

The clearest difference is ads: Human Resources Leader Prep at none against Math. Trainer App's shown. Human Resources Leader Prep also leads on iOS requirement (15.1 vs 17.6). Math. Trainer App's advantage is update cadence (every 3 weeks vs every 8 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Human Resources Leader Prep sells 9 in-app purchases, starting at $8.99 per 7 days and Math. Trainer App sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Human Resources Leader Prep ships an update every 8 months, Math. Trainer App every 3 weeks. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Human Resources Leader Prep | Math. Trainer App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/math-trainer-app/id6757082686/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 8 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 51 MB | 39 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Exam Prep OU](https://appshunter.io/developer/1689642184) | [Blatt, Inc](https://appshunter.io/developer/1779835943) |

## What reviewers say

### Human Resources Leader Prep

[App page](https://appshunter.io/ios/app/human-resources-leader-prep/id6742693760)

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CHRL Weekly Full Access | $8.99 | per 7 days |
| CHRL Monthly Full Access | $24.99 | per month |
| CHRL Monthly Full Access | $34.99 | per month |
| CHRL Quarterly Full Access | $55.99 | per 3 months |
| CHRL Quarterly Full Access | $59.99 | per 3 months |
| CHRL Semiannual Full Access | $75.99 | per 6 months |
| CHRL Semiannual Full Access | $79.99 | per 6 months |
| CHRL Annual Full Access | $109.99 | per year |
| CHRL Annual Full Access | $119.99 | per year |


### Math. Trainer App

[App page](https://appshunter.io/ios/app/math-trainer-app/id6757082686)

This app helps high school students memorize math formulas quickly for exams and homework. It features a formula bank, trainer mode with spaced repetition, and progress tracking to build long-term memory and confidence.

**Highlights:** Formula Bank (Algebra, Geometry, Trigonometry), Trainer Mode with Spaced Repetition, Adaptive Learning, Progress Tracking, Customizable Repetitions

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Removing ads | $1.99 | one-time |


## Frequently asked questions

### Is Human Resources Leader Prep free?

Human Resources Leader Prep is free to download, with in-app purchases available.

### Is Math. Trainer App free?

Math. Trainer App is free to download, with in-app purchases available.

### Do Human Resources Leader Prep or Math. Trainer App have ads?

Math. Trainer App shows ads; Human Resources Leader Prep does not.

### Which is updated more often, Human Resources Leader Prep or Math. Trainer App?

Human Resources Leader Prep ships an update every 8 months, and Math. Trainer App every 3 weeks. Most recently, Human Resources Leader Prep was updated on October 5, 2026 and Math. Trainer App on October 7, 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.*