# Apostrophe Power vs Science Libs

The clearest difference is in-app purchases: Apostrophe Power at none against Science Libs's 4. Apostrophe Power also leads on iOS requirement (7.0 vs 13.4). Science Libs's advantage is update cadence (every 9 days vs every 3 months). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Apostrophe Power against 5.0 for Science Libs. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Apostrophe Power ships an update every 3 months, Science Libs every 9 days. The most recent releases landed on October 13, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Apostrophe Power | Science Libs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/apostrophe-power/id1019114263/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/science-libs/id6748157618/reviews) |
| Number of ratings | 1 | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 9 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 24 MB | 41 MB |
| Requires iOS | **7.0** | 13.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Shamus Smith](https://appshunter.io/developer/375867091) | [Aaran Solh](https://appshunter.io/developer/1731393478) |

## What reviewers say

### Apostrophe Power

[App page](https://appshunter.io/ios/app/apostrophe-power/id1019114263)

This game makes learning apostrophe rules fun and engaging. It features levels with a rocket-powered mouse navigating challenges by correctly placing apostrophes to reach its goal. Short training videos offer quick overviews and examples of apostrophe usage.

**Highlights:** Interactive game levels, Rocket-powered mouse challenges, Apostrophe placement puzzles, Short training videos, Rule overviews and examples, Progressive difficulty

**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 Apostrophe Power free?

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

### Is Science Libs free?

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

### Which has better reviews, Apostrophe Power or Science Libs?

Apostrophe Power and Science Libs are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do Apostrophe Power or Science Libs have ads?

Neither Apostrophe Power nor Science Libs shows ads.

### Which is updated more often, Apostrophe Power or Science Libs?

Apostrophe Power ships an update every 3 months, and Science Libs every 9 days. Most recently, Apostrophe Power was updated on October 13, 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.*