# TimeTree vs Animal Class

The clearest difference is rating: Animal Class at 4.6 against TimeTree's 3.5. Animal Class also leads on update cadence (every 6 days vs every 8 months) and review sentiment (75% vs 65%). TimeTree's advantage is in-app purchases (none vs 1) and iOS requirement (8.0 vs 12.0). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Animal Class sells 1 one-off in-app purchase. TimeTree asks for nothing beyond the download.

Animal Class holds the better App Store score, 4.6 against 3.5. Both are backed by a comparable volume of ratings — 12 and 22 respectively. Written reviews point the same way: 65% of TimeTree's written reviews are positive against 75% of Animal Class's.

TimeTree ships an update every 8 months, Animal Class every 6 days. The most recent releases landed on October 20, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | TimeTree | Animal Class |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (12 ratings)](https://appshunter.io/ios/app/timetree/id372842500/reviews) | **[4.6 (22 ratings)](https://appshunter.io/ios/app/animal-class/id1489554558/reviews)** |
| Number of ratings | 12 | **22** |
| Positive reviews | 65.1% of reviews | **75.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 6 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 66 MB | 246 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Arizona and Penn State Universities](https://appshunter.io/developer/372842503) | [Darren McNally](https://appshunter.io/developer/1435108864) |

## What reviewers say

### TimeTree

[App page](https://appshunter.io/ios/app/timetree/id372842500)

Explore a vast public knowledge base of evolutionary timescales and divergence times among organisms. This app uses a hierarchical system to find and present molecular time estimates from scientific literature, allowing users to compare species and view summary statistics.

**Highlights:** Explore evolutionary timescales, View organism divergence times, Access scientific literature data, Hierarchical tree-based system, Compute summary statistics, Compare species divergence

**Features:** macOS Compatibility

**In-app purchases:** none


### Animal Class

[App page](https://appshunter.io/ios/app/animal-class/id1489554558)

Explore animal classification with engaging trivia and stunning photography. Features nine categories, including mammals, reptiles, and birds, plus warm-up and bonus rounds.

**Highlights:** Animal classification information, Engaging trivia questions, Global animal photography, Nine distinct categories, Warm-up and bonus rounds

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Pro | $9.99 | one-time |


## Frequently asked questions

### Is TimeTree free?

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

### Is Animal Class free?

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

### Which has better reviews, TimeTree or Animal Class?

Animal Class is rated higher. TimeTree averages 3.5 out of 5 from 12 ratings, while Animal Class averages 4.6 from 22 ratings.

### Do TimeTree or Animal Class have ads?

Neither TimeTree nor Animal Class shows ads.

### Which is updated more often, TimeTree or Animal Class?

TimeTree ships an update every 8 months, and Animal Class every 6 days. Most recently, TimeTree was updated on October 20, 2026 and Animal Class on October 9, 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.*