# Pi vs Vesper Pop

The clearest difference is in-app purchases: Vesper Pop at none against Pi's 6. Pi's advantage is iOS requirement (15.0 vs 18.5). On price, ads and device support there is nothing between them.

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

## The numbers

| Metric | Pi | Vesper Pop |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.7K ratings)](https://appshunter.io/ios/app/pi-the-game/id974805037/reviews)** | — |
| Number of ratings | **1.7K** | — |
| Positive reviews | 89.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 2 MB |
| Requires iOS | **15.0** | 18.5 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Applorium Ltd](https://appshunter.io/developer/1688522804) | [Gregory Savage](https://appshunter.io/developer/1896708614) |

## What reviewers say

### 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


### Vesper Pop

[App page](https://appshunter.io/ios/app/vesper-pop/id6790333021)

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

**In-app purchases:** none


## Frequently asked questions

### Is Pi free?

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

### Is Vesper Pop free?

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

### Do Pi or Vesper Pop have ads?

Neither Pi nor Vesper Pop shows ads.

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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.*