# Unity vs KeepReceipt

The clearest difference is update cadence: KeepReceipt at weekly against Unity's every 2 months. Unity's advantage is device support (5 vs 2) and iOS requirement (18.0 vs 26.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Unity sells 1 one-off in-app purchase and KeepReceipt sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Unity ships an update every 2 months, KeepReceipt weekly. The most recent releases landed on October 20, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Unity | KeepReceipt |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (25 ratings)](https://appshunter.io/ios/app/unity-the-best-unit-converter/id828401996/reviews)** | — |
| Number of ratings | **25** | — |
| Positive reviews | 44.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 14 MB | 2 MB |
| Requires iOS | **18.0** | 26.0 |
| Devices | **iPhone, iPad, iPod, Mac, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Peachy Ventures Ltd.](https://appshunter.io/developer/828401999) | [InnovaLabWorks](https://appshunter.io/developer/1888514726) |

## What reviewers say

### Unity

[App page](https://appshunter.io/ios/app/unity-the-best-unit-converter/id828401996)

This app offers precise and powerful unit and currency conversion with over 600 conversion types. Save frequent conversions as favorites and access them easily from the home screen. It provides real-time currency rates and historical graphs, with customizable decimal points and calculator functionality.

**Highlights:** Over 600 conversion types, Favorites for quick access, Real-time currency rates, Currency graphs, Customizable decimal points, Built-in calculator

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Get Full Features | $2.99 | one-time |


### KeepReceipt

[App page](https://appshunter.io/ios/app/keepreceipt-receipt-vault/id6789321697)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KeepReceipt Pro | $3.99 | per month |
| KeepReceipt Pro | $24.99 | per year |
| KeepReceipt Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is Unity free?

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

### Is KeepReceipt free?

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

### Do Unity or KeepReceipt have ads?

Neither Unity nor KeepReceipt shows ads.

### Which is updated more often, Unity or KeepReceipt?

Unity ships an update every 2 months, and KeepReceipt weekly. Most recently, Unity was updated on October 20, 2026 and KeepReceipt on October 8, 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.*