# Pi vs Blink4!

The clearest difference is ads: Pi at none against Blink4!'s shown. Blink4!'s advantage is monetization model (ad-supported vs free with in-app purchases). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Pi sells 5 one-off in-app purchases and Blink4! sells 6 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Pi | Blink4! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/blink4/id6758837068/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 4 days |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 21 MB | 51 MB |
| Requires iOS | 16.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [REMESHY LTD](https://appshunter.io/developer/1519992155) | [Onur Gumus](https://appshunter.io/developer/1875229042) |

## What reviewers say

### Pi

[App page](https://appshunter.io/ios/app/pi-math-memory-puzzle-game/id6744679735)

Test your memory and math skills by recalling digits of Pi in a survival game. Unlock boosters to extend your game and improve your score. Perfect for all ages looking to sharpen their minds.

**Highlights:** Memorize Pi digits in survival mode, Unlock boosters for extended gameplay, Improve memory and mental math skills, Practice multiplication and math facts, Climb the leaderboard, Designed for all ages

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5K Credits | $0.99 | one-time |
| 12K Credits | $1.99 | one-time |
| 25K Credits | $2.99 | one-time |
| 50K Credits | $3.99 | one-time |
| 100K Credits | $4.99 | one-time |


### Blink4!

[App page](https://appshunter.io/ios/app/blink4/id6758837068)

Test your memory and speed with this challenging game. Memorize rapidly flashing numbers and type them before time runs out. Progress through 50 tiers of increasing difficulty and compete globally.

**Highlights:** 50-tier progression, Global leaderboard, Millisecond precision timing, Gem system for continues, Minimalist design, Brain training

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Blinkpass | $8.99 | per month |
| 50 Elmas | $0.99 | one-time |
| 150 Gems | $2.99 | one-time |
| 500 Gems | $7.99 | one-time |
| 1200 Gems | $14.99 | one-time |
| 3000 Gems | $29.99 | one-time |


## Frequently asked questions

### Is Pi free?

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

### Is Blink4! free?

Blink4! is free to download, with in-app purchases available.

### Do Pi or Blink4! have ads?

Blink4! shows ads; Pi does not.

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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.*