# Unit Converter Calculator Pro vs Turnit

The clearest difference is ads: Turnit at none against Unit Converter Calculator Pro's shown. Turnit also leads on review sentiment (100% vs 76%) and rating (5.0 vs 4.7). Unit Converter Calculator Pro's advantage is ratings volume (993 vs 2) and update cadence (monthly vs every 3 months). On price, in-app purchases, monetization model and iOS requirement there is nothing between them.

Both are free to download. Unit Converter Calculator Pro sells 4 one-off in-app purchases and Turnit sells 4 in-app purchases, starting at $0.49 per month. Whichever you choose, the download price is not the number that matters.

Turnit holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Unit Converter Calculator Pro has 993 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 76% of Unit Converter Calculator Pro's written reviews are positive against 100% of Turnit's.

Unit Converter Calculator Pro ships an update monthly, Turnit every 3 months. The most recent releases landed on October 26, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Unit Converter Calculator Pro | Turnit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (993 ratings)](https://appshunter.io/ios/app/unit-converter-calculator-pro/id1343845631/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/turnit-convert-everything/id1484892103/reviews)** |
| Number of ratings | **993** | 2 |
| Positive reviews | 76.2% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 37 MB | 44 MB |
| Requires iOS | 13.0 | **12.2** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rome Rock LLC](https://appshunter.io/developer/1190244007) | [Stanislav Jidkov](https://appshunter.io/developer/1484892102) |

## What reviewers say

### Unit Converter Calculator Pro

[App page](https://appshunter.io/ios/app/unit-converter-calculator-pro/id1343845631)

Easily convert between metric and imperial units for a wide range of measurements including area, speed, temperature, and weight. Supports scientific prefixes and offers a history of your conversions. No internet connection required.

**Highlights:** Metric to Imperial unit conversion, Imperial to Metric unit conversion, Area, speed, temperature, volume, weight conversions, Scientific prefixes support, Conversion history, Offline functionality

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads & Unlock Themes | $2.99 | one-time |
| Remove Ads & Unlock Themes 1 | $4.99 | one-time |
| Remove Ads & Unlock Themes 2 | $6.99 | one-time |
| Remove Ads & Unlock Themes 3 | $9.99 | one-time |

**What reviewers like**

- 🚀 Easy & accurate
- 🚀 Excellent Tool
- 👍 Goog for social
- 👍 Excelente para mi trabajo
- 👍 Sencillez

**What reviewers complain about**

- 👎 Hard to use interface
- 👎 Lacks pressure units
- 👎 No reverse button
- 👎 Metric to imperial format not user-friendly

**Reported bugs**

- 🐛 Changing to something else

**Requested features**

- 💡 Favorite conversations
- 💡 Color-coded sections
- 💡 Money conversion


### Turnit

[App page](https://appshunter.io/ios/app/turnit-convert-everything/id1484892103)

This app offers a comprehensive scientific unit converter with over 2600 units across 70+ categories. Users can create custom converters and units, view calculation details, and access a history of conversions. It works offline and prioritizes user privacy.

**Highlights:** 2600+ units across 70+ categories, Create custom converters and units, View calculation details, Works completely offline, History section for review, Significant digit control

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Donation | $0.49 | per month |
| Small Donation | $0.99 | one-time |
| Medium Donation | $1.99 | one-time |
| Large Donation | $2.99 | one-time |


## Frequently asked questions

### Is Unit Converter Calculator Pro free?

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

### Is Turnit free?

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

### Which has better reviews, Unit Converter Calculator Pro or Turnit?

Turnit is rated higher. Unit Converter Calculator Pro averages 4.7 out of 5 from 993 ratings, while Turnit averages 5.0 from 2 ratings.

### Do Unit Converter Calculator Pro or Turnit have ads?

Unit Converter Calculator Pro shows ads; Turnit does not.

### Which is updated more often, Unit Converter Calculator Pro or Turnit?

Unit Converter Calculator Pro ships an update monthly, and Turnit every 3 months. Most recently, Unit Converter Calculator Pro was updated on October 26, 2026 and Turnit on October 19, 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.*