# Mental Math Trainer vs Henceforth

The clearest difference is price: Mental Math Trainer at Free against Henceforth's $9.99. Mental Math Trainer also leads on iOS requirement (15.0 vs 26.0). Henceforth's advantage is update cadence (weekly vs fortnightly). On ads, in-app purchases and device support there is nothing between them.

Mental Math Trainer is free to download; Henceforth costs $9.99 up front. Mental Math Trainer sells 7 in-app purchases, starting at $2.99 per month and Henceforth sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Mental Math Trainer ships an update fortnightly, Henceforth weekly. The most recent releases landed on October 10, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Mental Math Trainer | Henceforth |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[4.5 (228 ratings)](https://appshunter.io/ios/app/mental-math-trainer-puremath/id684305542/reviews)** | — |
| Number of ratings | **228** | — |
| Positive reviews | 57.8% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 50 MB | 12 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Stoyan Hristov](https://appshunter.io/developer/584595816) | [Henceforth bitcoin limited](https://appshunter.io/developer/1520654144) |

## What reviewers say

### Mental Math Trainer

[App page](https://appshunter.io/ios/app/mental-math-trainer-puremath/id684305542)

Enhance your arithmetic abilities with this app. Practice addition, subtraction, multiplication, and division through engaging games and custom sessions. Track your progress and challenge friends to boost your mental math confidence and speed.

**Highlights:** Addition, subtraction, multiplication, division practice, Math Arcade mode with increasing difficulty, Customizable practice sessions, Memory training games (Find the Pairs), Progress tracking, Game Center integration for challenges

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Access | $2.99 | per month |
| Unlimited Access | $2.99 | per 7 days |
| Unlimited Access | $3.99 | per month |
| Unlimited Access | $9.99 | per year |
| Unlimited Access | $12.99 | per year |
| Unlimited Access | $14.99 | per year |
| Unlock Everything | $17.99 | one-time |

**What reviewers like**

- 🧠 Brain training and mental sharpness
- 👍 Useful for math skills improvement
- 🚀 Fast and easy to use
- ✅ Good for daily practice
- 💡 Gamifies math learning

**What reviewers complain about**

- 💸 Most features are paid/locked
- 💰 Deceptive free version
- 😩 Repetitive questions/levels
- 🐌 Slow animations
- 📱 UI can be improved (keypad style)

**Reported bugs**

- App crashes or doesn't open
- Purchases not unlocking features
- In-app purchase issues
- Timer continues when paused
- Drag response not registering input

**Requested features**

- Option to choose keypad style
- More difficult levels
- Infinite or custom exercise mode
- Dark mode support
- Landscape mode support


### Henceforth

[App page](https://appshunter.io/ios/app/henceforth/id1602896145)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bitcoin Wallet | $4.99 | one-time |


## Frequently asked questions

### Is Mental Math Trainer free?

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

### Is Henceforth free?

Henceforth costs $9.99, and also offers in-app purchases.

### Do Mental Math Trainer or Henceforth have ads?

Neither Mental Math Trainer nor Henceforth shows ads.

### Which is updated more often, Mental Math Trainer or Henceforth?

Mental Math Trainer ships an update fortnightly, and Henceforth weekly. Most recently, Mental Math Trainer was updated on October 10, 2026 and Henceforth on October 3, 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.*