# Thumb calculator vs Suanyi

The clearest difference is in-app purchases: Thumb calculator at none against Suanyi's 2. Thumb calculator also leads on device support (3 vs 1) and iOS requirement (15.8.3 vs 18.0). Suanyi's advantage is ads (none vs shown). On price there is nothing between them.

Both are free to download. Suanyi sells 2 in-app purchases, starting at $4.99 per 7 days. Thumb calculator asks for nothing beyond the download.

## The numbers

| Metric | Thumb calculator | Suanyi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | — |
| Size | 35 MB | 3 MB |
| Requires iOS | **15.8.3** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) | [薇薇 殷](https://appshunter.io/developer/1874158488) |

## What reviewers say

### Thumb calculator

[App page](https://appshunter.io/ios/app/thumb-calculator/id6499389948)

**Features:** macOS Compatibility

**In-app purchases:** none


### Suanyi

[App page](https://appshunter.io/ios/app/suanyi/id6758982336)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Core | $4.99 | per 7 days |
| Yearly Core | $39.99 | per year |


## Frequently asked questions

### Is Thumb calculator free?

Thumb calculator is free to download, with no in-app purchases.

### Is Suanyi free?

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

### Do Thumb calculator or Suanyi have ads?

Thumb calculator shows ads; Suanyi 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.*