# Speed calculation vs 算术训练营

The clearest difference is in-app purchases: 算术训练营 at none against Speed calculation's 1. 算术训练营 also leads on ads (none vs shown) and update cadence (every 10 days vs every 5 months). On price and device support there is nothing between them.

Both are free to download. Speed calculation sells 1 one-off in-app purchase. 算术训练营 asks for nothing beyond the download.

Speed calculation ships an update every 5 months, 算术训练营 every 10 days. The most recent releases landed on September 20, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Speed calculation | 算术训练营 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id1461070545/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 10 days** |
| Size | 4 MB | 12 MB |
| Requires iOS | 16.0 | **9.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [宏斌 樊](https://appshunter.io/developer/1452129040) | [北京易连忆生](https://appshunter.io/developer/698457861) |

## What reviewers say

### Speed calculation

[App page](https://appshunter.io/ios/app/speed-calculation/id1436483686)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads. | $3.99 | one-time |


### 算术训练营

[App page](https://appshunter.io/ios/app/id1461070545)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Speed calculation free?

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

### Is 算术训练营 free?

算术训练营 is free to download, with no in-app purchases.

### Do Speed calculation or 算术训练营 have ads?

Speed calculation shows ads; 算术训练营 does not.

### Which is updated more often, Speed calculation or 算术训练营?

Speed calculation ships an update every 5 months, and 算术训练营 every 10 days. Most recently, Speed calculation was updated on September 20, 2026 and 算术训练营 on October 6, 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.*