# Flip Unit vs Unitto

The clearest difference is in-app purchases: Flip Unit at none against Unitto's 1. Flip Unit also leads on iOS requirement (17.6 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Unitto sells 1 one-off in-app purchase. Flip Unit asks for nothing beyond the download.

Flip Unit ships an update monthly, Unitto every 5 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Flip Unit | Unitto |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/flip-unit-unit-converter/id6757921823/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | Free | — |
| Size | 6 MB | 1 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SIRAJ SALIM](https://appshunter.io/developer/1869633316) | [永 张](https://appshunter.io/developer/1806535769) |

## What reviewers say

### Flip Unit

[App page](https://appshunter.io/ios/app/flip-unit-unit-converter/id6757921823)

Easily convert units across 12 categories including cooking, currency, and distance. Access conversions on your iPhone, Apple Watch, and home screen widgets. This app offers a clean interface and works offline for most conversions.

**Highlights:** 12 conversion categories, Apple Watch app and complications, iPhone home screen widgets, Offline conversion (except currency), No ads or tracking, iCloud sync

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

**In-app purchases:** none


### Unitto

[App page](https://appshunter.io/ios/app/unitto/id6787210262)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unitto Pro | $4.99 | one-time |


## Frequently asked questions

### Is Flip Unit free?

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

### Is Unitto free?

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

### Do Flip Unit or Unitto have ads?

Neither Flip Unit nor Unitto shows ads.

### Which is updated more often, Flip Unit or Unitto?

Flip Unit ships an update monthly, and Unitto every 5 weeks. Most recently, Flip Unit was updated on October 24, 2026 and Unitto on October 25, 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.*