# Calculator vs ToolsUnitConverter

The clearest difference is in-app purchases: ToolsUnitConverter at none against Calculator's 3. ToolsUnitConverter also leads on update cadence (every 5 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Calculator sells 3 in-app purchases, starting at $0.99 per month. ToolsUnitConverter asks for nothing beyond the download.

Calculator ships an update fortnightly, ToolsUnitConverter every 5 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Calculator | ToolsUnitConverter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 5 days** |
| Size | 8 MB | 3 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Baole software Co.,Ltd.](https://appshunter.io/developer/1773102040) | [成 熊](https://appshunter.io/developer/1642462750) |

## What reviewers say

### Calculator

[App page](https://appshunter.io/ios/app/calculator-edit-equations/id6443911558)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1个月 | $0.99 | per month |
| 1 年 | $1.99 | per year |
| 终身会员 | $2.99 | one-time |


### ToolsUnitConverter

[App page](https://appshunter.io/ios/app/toolsunitconverter/id6754634175)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases:** none


## Frequently asked questions

### Is Calculator free?

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

### Is ToolsUnitConverter free?

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

### Do Calculator or ToolsUnitConverter have ads?

Neither Calculator nor ToolsUnitConverter shows ads.

### Which is updated more often, Calculator or ToolsUnitConverter?

Calculator ships an update fortnightly, and ToolsUnitConverter every 5 days. Most recently, Calculator was updated on October 24, 2026 and ToolsUnitConverter on October 24, 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.*