# Pi 100 Challenge vs Flipzzy

The clearest difference is price: Flipzzy at Free against Pi 100 Challenge's $0.99. Pi 100 Challenge's advantage is ads (none vs shown). On update cadence, in-app purchases, device support and iOS requirement there is nothing between them.

Flipzzy is free to download; Pi 100 Challenge costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Pi 100 Challenge ships an update every 3 weeks, Flipzzy every 4 weeks. The most recent releases landed on October 25, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Pi 100 Challenge | Flipzzy |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 4 weeks |
| Size | 11 MB | 70 MB |
| Requires iOS | 17.0 | 17 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ram Rao](https://appshunter.io/developer/1724828937) | [Roberto Pistolato](https://appshunter.io/developer/625782665) |

## What reviewers say

### Pi 100 Challenge

[App page](https://appshunter.io/ios/app/pi-100-challenge/id6475694538)

**In-app purchases:** none


### Flipzzy

[App page](https://appshunter.io/ios/app/flipzzy-memory-game/id6737769287)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Pi 100 Challenge free?

Pi 100 Challenge costs $0.99, with no in-app purchases.

### Is Flipzzy free?

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

### Do Pi 100 Challenge or Flipzzy have ads?

Flipzzy shows ads; Pi 100 Challenge does not.

### Which is updated more often, Pi 100 Challenge or Flipzzy?

Pi 100 Challenge ships an update every 3 weeks, and Flipzzy every 4 weeks. Most recently, Pi 100 Challenge was updated on October 25, 2026 and Flipzzy on October 19, 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.*