# Fibonacci Numbers vs Michi

The clearest difference is update cadence: Michi at every 3 days against Fibonacci Numbers's every 10 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Fibonacci Numbers sells 1 one-off in-app purchase and Michi sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Fibonacci Numbers ships an update every 10 days, Michi every 3 days. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Fibonacci Numbers | Michi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 3 days** |
| Size | 24 MB | 32 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [海军 王](https://appshunter.io/developer/1756634009) | [Ramon Ackermann](https://appshunter.io/developer/1738064860) |

## What reviewers say

### Fibonacci Numbers

[App page](https://appshunter.io/ios/app/fibonacci-numbers/id6566185190)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 2000Coins | $0.99 | one-time |


### Michi

[App page](https://appshunter.io/ios/app/michi-world/id6745433110)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Game | $2.99 | one-time |


## Frequently asked questions

### Is Fibonacci Numbers free?

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

### Is Michi free?

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

### Do Fibonacci Numbers or Michi have ads?

Neither Fibonacci Numbers nor Michi shows ads.

### Which is updated more often, Fibonacci Numbers or Michi?

Fibonacci Numbers ships an update every 10 days, and Michi every 3 days. Most recently, Fibonacci Numbers was updated on October 7, 2026 and Michi on October 8, 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.*