# π ~ Pi Fun App. vs 3.14 Master Pi

The clearest difference is in-app purchases: π ~ Pi Fun App. at none against 3.14 Master Pi's 5. π ~ Pi Fun App. also leads on update cadence (every 2 days vs every 2 months). 3.14 Master Pi's advantage is ads (none vs shown) and iOS requirement (15.1 vs 17.0). On price and device support there is nothing between them.

Both are free to download. 3.14 Master Pi sells 5 one-off in-app purchases. π ~ Pi Fun App. asks for nothing beyond the download.

π ~ Pi Fun App. ships an update every 2 days, 3.14 Master Pi every 2 months. The most recent releases landed on October 14, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | π ~ Pi Fun App. | 3.14 Master Pi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 days** | Every 2 months |
| Size | 17 MB | 47 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ryo Tsudukihashi](https://appshunter.io/developer/1320583602) | [David Brown](https://appshunter.io/developer/1848509879) |

## What reviewers say

### π ~ Pi Fun App.

[App page](https://appshunter.io/ios/app/pi-fun-app/id6566185298)

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

**In-app purchases:** none


### 3.14 Master Pi

[App page](https://appshunter.io/ios/app/314-master-pi/id6754499094)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Summation Supporter | $2.99 | one-time |
| Premium (Lifetime) | $4.99 | one-time |
| Radical Patron | $9.99 | one-time |
| Infinite Supporter | $29.99 | one-time |
| Pi Master | $99.99 | one-time |


## Frequently asked questions

### Is π ~ Pi Fun App. free?

π ~ Pi Fun App. is free to download, with no in-app purchases.

### Is 3.14 Master Pi free?

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

### Do π ~ Pi Fun App. or 3.14 Master Pi have ads?

π ~ Pi Fun App. shows ads; 3.14 Master Pi does not.

### Which is updated more often, π ~ Pi Fun App. or 3.14 Master Pi?

π ~ Pi Fun App. ships an update every 2 days, and 3.14 Master Pi every 2 months. Most recently, π ~ Pi Fun App. was updated on October 14, 2026 and 3.14 Master Pi on October 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.*