# Speed calculation vs NaNa拼单词

The clearest difference is price: Speed calculation at Free against NaNa拼单词's $0.99. Speed calculation also leads on iOS requirement (16.0 vs 26.1). NaNa拼单词's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.

Speed calculation is free to download; NaNa拼单词 costs $0.99 up front. Speed calculation sells 1 one-off in-app purchase. NaNa拼单词 asks for nothing beyond the download.

## The numbers

| Metric | Speed calculation | NaNa拼单词 |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | — |
| Size | 4 MB | 6 MB |
| Requires iOS | **16.0** | 26.1 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [宏斌 樊](https://appshunter.io/developer/1452129040) | [宝珍 杜](https://appshunter.io/developer/1825073574) |

## 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 |


### NaNa拼单词

[App page](https://appshunter.io/ios/app/nana/id6755929376)

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

**In-app purchases:** none


## Frequently asked questions

### Is Speed calculation free?

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

### Is NaNa拼单词 free?

NaNa拼单词 costs $0.99, with no in-app purchases.

### Do Speed calculation or NaNa拼单词 have ads?

Speed calculation shows ads; NaNa拼单词 does not.

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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.*