# Constellations Puzzle vs Pi

The clearest difference is in-app purchases: Constellations Puzzle at none against Pi's 6. Constellations Puzzle also leads on iOS requirement (13.0 vs 15.0). Pi's advantage is ads (none vs shown) and ratings volume (1.7K vs 21). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. Pi sells 6 in-app purchases, starting at $3.99 per year. Constellations Puzzle asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for Constellations Puzzle against 4.7 for Pi. That said, the two scores are not equally well evidenced: Pi has 1.7K ratings behind it against 21, so its average is the more settled of the two. Written reviews are what separate them: 84% of Constellations Puzzle's written reviews are positive against 89% of Pi's.

Constellations Puzzle ships an update every 5 months, Pi every 3 months. The most recent releases landed on October 23, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Constellations Puzzle | Pi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (21 ratings)](https://appshunter.io/ios/app/constellations-puzzle/id585551131/reviews)** | [4.7 (1.7K ratings)](https://appshunter.io/ios/app/pi-the-game/id974805037/reviews) |
| Number of ratings | 21 | **1.7K** |
| Positive reviews | 84.4% of reviews | **89.2% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 14 MB | 9 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Plus Inc. (Japan)](https://appshunter.io/developer/445792061) | [Applorium Ltd](https://appshunter.io/developer/1688522804) |

## What reviewers say

### Constellations Puzzle

[App page](https://appshunter.io/ios/app/constellations-puzzle/id585551131)

Learn constellations through a fun jigsaw puzzle experience. Choose from three modes featuring different sets of constellations. Compete for the best time, collect picture panels, and use assistance features to help you learn.

**Highlights:** Learn constellations via jigsaw puzzles, Three distinct constellation modes, Timed challenges for best scores, Collectible picture panels, Assisted navigation feature, Global player leaderboards

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Pi

[App page](https://appshunter.io/ios/app/pi-the-game/id974805037)

Enhance your Pi memorization with this app. Features include writing your own "Piem," voice mode for reciting digits, performance statistics, and sound effects. Challenge friends and track your progress.

**Highlights:** Write your own Piem, Voice mode for reciting digits, Performance statistics, Sound effects for memorization, Game Center integration, Challenge friends

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pi - The Game Pro | $3.99 | per year |
| Slice of Pie | $3.99 | one-time |
| Upgrade | $3.99 | one-time |
| Pi - The Game Pro | $4.99 | one-time |
| Half a pie | $14.99 | one-time |
| A Whole pie | $29.99 | one-time |

**What reviewers like**

- 🚀 Great memorization tool
- 👍 Simple and intuitive interface
- 💡 Customizable features (e.g., column count)
- 🥳 Engaging and fun way to learn pi
- 🎉 Helps users achieve impressive results quickly

**What reviewers complain about**

- 🔒 Premium features locked behind paywall
- 🐛 Occasional crashes and bugs
- 📢 Frequent review prompts can be annoying
- 🔍 Leaderboard and achievements not always accurate

**Reported bugs**

- Leaderboard and achievements not updating correctly
- Interface issues after certain actions (e.g., unable to exit training mode)
- Purchases not always unlocking premium features

**Requested features**

- Voice recognition mode
- Tolerance for minor mistakes
- Support for other mathematical constants
- Dark mode option


## Frequently asked questions

### Is Constellations Puzzle free?

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

### Is Pi free?

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

### Which has better reviews, Constellations Puzzle or Pi?

Constellations Puzzle is rated higher. Constellations Puzzle averages 4.8 out of 5 from 21 ratings, while Pi averages 4.7 from 1.7K ratings.

### Do Constellations Puzzle or Pi have ads?

Constellations Puzzle shows ads; Pi does not.

### Which is updated more often, Constellations Puzzle or Pi?

Constellations Puzzle ships an update every 5 months, and Pi every 3 months. Most recently, Constellations Puzzle was updated on October 23, 2026 and Pi on October 26, 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.*