# Lumi Math Planet vs Mathgotchi

The clearest difference is iOS requirement: Lumi Math Planet at 15.1 against Mathgotchi's 18.2. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Lumi Math Planet sells 1 one-off in-app purchase and Mathgotchi sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Lumi Math Planet ships an update every 3 days, Mathgotchi every 5 days. Both last shipped on November 7, 2026.

## The numbers

| Metric | Lumi Math Planet | Mathgotchi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 5 days |
| Size | 56 MB | 129 MB |
| Requires iOS | **15.1** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Guan Feng Lai](https://appshunter.io/developer/1136144960) | [Jaewook Byun](https://appshunter.io/developer/6806621845) |

## What reviewers say

### Lumi Math Planet

[App page](https://appshunter.io/ios/app/lumi-math-planet-explorer/id6778269699)

**Features:** macOS Compatibility, Family Sharing, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock the Full Galaxy | $4.99 | one-time |


### Mathgotchi

[App page](https://appshunter.io/ios/app/mathgotchi-early-math-and-time/id6806621843)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mathgotchi Premium (1 Month) | $1.99 | per month |


## Frequently asked questions

### Is Lumi Math Planet free?

Lumi Math Planet is free to download, with in-app purchases available.

### Is Mathgotchi free?

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

### Do Lumi Math Planet or Mathgotchi have ads?

Neither Lumi Math Planet nor Mathgotchi shows ads.

### Which is updated more often, Lumi Math Planet or Mathgotchi?

Lumi Math Planet ships an update every 3 days, and Mathgotchi every 5 days. Most recently, Lumi Math Planet was updated on November 7, 2026 and Mathgotchi on November 7, 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.*