# Angle Todo vs Unit Conversion Calculator $

The clearest difference is in-app purchases: Unit Conversion Calculator $ at none against Angle Todo's 4. Unit Conversion Calculator $ also leads on iOS requirement (13.0 vs 15.0). Angle Todo's advantage is ads (none vs shown) and update cadence (every 4 days vs every 9 months). On price and device support there is nothing between them.

Both are free to download. Angle Todo sells 4 in-app purchases, starting at $0.99 per month. Unit Conversion Calculator $ asks for nothing beyond the download.

Angle Todo ships an update every 4 days, Unit Conversion Calculator $ every 9 months. The most recent releases landed on September 30, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Angle Todo | Unit Conversion Calculator $ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Every 9 months |
| Size | 29 MB | 28 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [国龙 赵](https://appshunter.io/developer/1600931443) | [JanoGroup LLC](https://appshunter.io/developer/1781461557) |

## What reviewers say

### Angle Todo

[App page](https://appshunter.io/ios/app/angle-todo/id1601760271)

**Features:** Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly VIP | $0.99 | per month |
| Monthly VIP For Family | $1.49 | per month |
| Yearly VIP | $10.99 | per year |
| Monthly VIP For Family | $16.99 | per year |


### Unit Conversion Calculator $

[App page](https://appshunter.io/ios/app/unit-conversion-calculator/id6742060456)

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

**In-app purchases:** none


## Frequently asked questions

### Is Angle Todo free?

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

### Is Unit Conversion Calculator $ free?

Unit Conversion Calculator $ is free to download, with no in-app purchases.

### Do Angle Todo or Unit Conversion Calculator $ have ads?

Unit Conversion Calculator $ shows ads; Angle Todo does not.

### Which is updated more often, Angle Todo or Unit Conversion Calculator $?

Angle Todo ships an update every 4 days, and Unit Conversion Calculator $ every 9 months. Most recently, Angle Todo was updated on September 30, 2026 and Unit Conversion Calculator $ on October 12, 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.*