# Triangle Test vs Smart Mental Math Trainer

The clearest difference is update cadence: Smart Mental Math Trainer at every 3 days against Triangle Test's fortnightly. Smart Mental Math Trainer also leads on iOS requirement (15.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Triangle Test sells 2 in-app purchases, starting at $3.99 per month and Smart Mental Math Trainer sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Triangle Test ships an update fortnightly, Smart Mental Math Trainer every 3 days. The most recent releases landed on November 9, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Triangle Test | Smart Mental Math Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/smart-mental-math-trainer/id6761359389/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 3 days** |
| Monetization | — | Free |
| Size | 16 MB | 32 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Felix Desiderato](https://appshunter.io/developer/1742514874) | [Maximilian Daniliev](https://appshunter.io/developer/1889111350) |

## What reviewers say

### Triangle Test

[App page](https://appshunter.io/ios/app/triangle-test/id6754271995)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Access | $3.99 | per month |
| Lifetime Access | $5.99 | one-time |


### Smart Mental Math Trainer

[App page](https://appshunter.io/ios/app/smart-mental-math-trainer/id6761359389)

Improve your arithmetic skills with an AI coach that adapts to your learning pace. Master multiplication, division, percentages, and more through interactive lessons and targeted practice sessions. Learn practical calculation strategies to boost speed and accuracy in everyday situations.

**Highlights:** Adaptive AI coaching, Learn calculation strategies, Practice core arithmetic skills, Focus on weak spots, Progress tracking, Short, high-impact sessions

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3-day Trial | Free | one-time |
| Lifetime Unlock | $3.99 | one-time |


## Frequently asked questions

### Is Triangle Test free?

Triangle Test is free to download, with in-app purchases available.

### Is Smart Mental Math Trainer free?

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

### Do Triangle Test or Smart Mental Math Trainer have ads?

Neither Triangle Test nor Smart Mental Math Trainer shows ads.

### Which is updated more often, Triangle Test or Smart Mental Math Trainer?

Triangle Test ships an update fortnightly, and Smart Mental Math Trainer every 3 days. Most recently, Triangle Test was updated on November 9, 2026 and Smart Mental Math Trainer on November 5, 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.*