# Pi vs FlashDigits

The clearest difference is in-app purchases: FlashDigits at none against Pi's 6. Pi's advantage is update cadence (every 3 months vs every 9 months) and iOS requirement (15.0 vs 18.4). 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. FlashDigits asks for nothing beyond the download.

Pi ships an update every 3 months, FlashDigits every 9 months. The most recent releases landed on September 24, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Pi | FlashDigits |
| --- | --- | --- |
| 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 | 90.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 9 months |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 6 MB |
| Requires iOS | **15.0** | 18.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Applorium Ltd](https://appshunter.io/developer/1688522804) | [The White Lab Lab, LLC](https://appshunter.io/developer/1817008015) |

## 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


### FlashDigits

[App page](https://appshunter.io/ios/app/flashdigits/id6746565414)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Pi free?

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

### Is FlashDigits free?

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

### Do Pi or FlashDigits have ads?

Neither Pi nor FlashDigits shows ads.

### Which is updated more often, Pi or FlashDigits?

Pi ships an update every 3 months, and FlashDigits every 9 months. Most recently, Pi was updated on September 24, 2026 and FlashDigits on September 10, 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.*