# Trinity vs Science Libs

The clearest difference is in-app purchases: Trinity at none against Science Libs's 4. Trinity also leads on device support (4 vs 2). Science Libs's advantage is update cadence (every 9 days vs every 24 months). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Science Libs sells 4 one-off in-app purchases. Trinity asks for nothing beyond the download.

Trinity ships an update every 24 months, Science Libs every 9 days. The most recent releases landed on September 23, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Trinity | Science Libs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/science-libs/id6748157618/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 9 days** |
| Monetization | — | Free with in-app purchases |
| Size | 47 MB | 41 MB |
| Requires iOS | 13.4 | 13.4 |
| Devices | **iPhone, iPad, iPod, Apple TV** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Trinity Lutheran Church of Pell Lake](https://appshunter.io/developer/1458919231) | [Aaran Solh](https://appshunter.io/developer/1731393478) |

## What reviewers say

### Trinity

[App page](https://appshunter.io/ios/app/trinity-pell-lake/id1200004168)

**Features:** macOS Compatibility

**In-app purchases:** none


### Science Libs

[App page](https://appshunter.io/ios/app/science-libs/id6748157618)

This app makes learning science fun for kids aged 6-12 through Mad Libs-style stories. Children fill in blanks to create hilarious tales, then read engaging articles explaining the real science. It encourages vocabulary, creativity, and curiosity in a safe, ad-free environment.

**Highlights:** Mad Libs-style science stories, Vocabulary and creativity building, Engaging science articles, Reflective questions for discussion, Kid-friendly design, Optional social sharing with parental controls, Ad-free environment

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Purchase all Science Libs | $2.99 | one-time |
| Workbook download | $2.99 | one-time |
| Category Purchase | $4.99 | one-time |
| Purchase Four Categories | $9.99 | one-time |


## Frequently asked questions

### Is Trinity free?

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

### Is Science Libs free?

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

### Do Trinity or Science Libs have ads?

Neither Trinity nor Science Libs shows ads.

### Which is updated more often, Trinity or Science Libs?

Trinity ships an update every 24 months, and Science Libs every 9 days. Most recently, Trinity was updated on September 23, 2026 and Science Libs on September 18, 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.*