# Simple Mental Math Practice vs Sumday

The clearest difference is update cadence: Simple Mental Math Practice at every 3 days against Sumday's every 9 days. Simple Mental Math Practice also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Simple Mental Math Practice sells 1 one-off in-app purchase and Sumday sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Simple Mental Math Practice ships an update every 3 days, Sumday every 9 days. The most recent releases landed on September 29, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Simple Mental Math Practice | Sumday |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 days** | Every 9 days |
| Monetization | — | Free with in-app purchases |
| Size | 36 MB | 34 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ENDEVLAB](https://appshunter.io/developer/1803275438) | [TON CO., LTD.](https://appshunter.io/developer/6796677381) |

## What reviewers say

### Simple Mental Math Practice

[App page](https://appshunter.io/ios/app/simple-mental-math-practice/id6755456204)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Premium | $6.99 | one-time |


### Sumday

[App page](https://appshunter.io/ios/app/sumday-mental-math-practice/id6802302480)

Sharpen your number sense with daily mental math exercises. This app offers quick arithmetic practice, practical math tricks, and progress tracking to improve your speed and accuracy in just five minutes a day.

**Highlights:** Daily arithmetic questions, Adaptive difficulty levels, Mental math technique cards, Progress tracking and reports, Streak tracking, Offline functionality

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sumday Premium | $3.99 | one-time |


## Frequently asked questions

### Is Simple Mental Math Practice free?

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

### Is Sumday free?

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

### Do Simple Mental Math Practice or Sumday have ads?

Both Simple Mental Math Practice and Sumday show ads.

### Which is updated more often, Simple Mental Math Practice or Sumday?

Simple Mental Math Practice ships an update every 3 days, and Sumday every 9 days. Most recently, Simple Mental Math Practice was updated on September 29, 2026 and Sumday on October 13, 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.*