# Unit Converter Expert vs Shark Tooth Identifier

The clearest difference is rating: Unit Converter Expert at 4.3 against Shark Tooth Identifier's 3.7. Unit Converter Expert also leads on monetization model (free vs freemium) and update cadence (every 3 weeks vs every 2 months). Shark Tooth Identifier's advantage is ratings volume (9 vs 3). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Unit Converter Expert sells 1 one-off in-app purchase and Shark Tooth Identifier sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Unit Converter Expert holds the better App Store score, 4.3 against 3.7. Both are backed by a comparable volume of ratings — 3 and 9 respectively.

Unit Converter Expert ships an update every 3 weeks, Shark Tooth Identifier every 2 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Unit Converter Expert | Shark Tooth Identifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (3 ratings)](https://appshunter.io/ios/app/unit-converter-expert/id1491878360/reviews)** | [3.7 (9 ratings)](https://appshunter.io/ios/app/shark-tooth-identifier-scan/id6749814542/reviews) |
| Number of ratings | 3 | **9** |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | **Free** | Freemium |
| Size | 21 MB | 37 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Mehta Group Ltd](https://appshunter.io/developer/368949469) | [Ramkumar Vellaisamy](https://appshunter.io/developer/1706335914) |

## What reviewers say

### Unit Converter Expert

[App page](https://appshunter.io/ios/app/unit-converter-expert/id1491878360)

This app offers a comprehensive unit conversion tool with five main categories: Basic, Engineering, Computer/IT, Special, and Ancient/Historical. It features an intuitive interface, instant results, and the ability to mark favorite conversions for quick access.

**Highlights:** Wide range of unit conversions, Five main categories, Intuitive user interface, Instant and clear results, Mark favorite conversions, Supports all devices

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unit Converter Pro | $0.99 | one-time |


### Shark Tooth Identifier

[App page](https://appshunter.io/ios/app/shark-tooth-identifier-scan/id6749814542)

Instantly identify shark teeth from photos using advanced AI. Learn detailed information about species, geological context, and potential value. Save your finds to a personal collection and explore the world of shark fossils.

**Highlights:** AI-powered tooth identification, Detailed species information, Geological context and value, Personal collection saving, Built-in AI assistant

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Shark Tooth Identifier Weekly | $4.99 | per 7 days |
| Shark Tooth Identifier Yearly | $24.99 | per year |


## Frequently asked questions

### Is Unit Converter Expert free?

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

### Is Shark Tooth Identifier free?

Shark Tooth Identifier is free to download, with in-app purchases available.

### Which has better reviews, Unit Converter Expert or Shark Tooth Identifier?

Unit Converter Expert is rated higher. Unit Converter Expert averages 4.3 out of 5 from 3 ratings, while Shark Tooth Identifier averages 3.7 from 9 ratings.

### Do Unit Converter Expert or Shark Tooth Identifier have ads?

Neither Unit Converter Expert nor Shark Tooth Identifier shows ads.

### Which is updated more often, Unit Converter Expert or Shark Tooth Identifier?

Unit Converter Expert ships an update every 3 weeks, and Shark Tooth Identifier every 2 months. Most recently, Unit Converter Expert was updated on October 24, 2026 and Shark Tooth Identifier 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.*