# Monsty vs Lumi Math Planet

The clearest difference is price: Lumi Math Planet at Free against Monsty's $2.99. Lumi Math Planet also leads on update cadence (every 3 days vs every 6 weeks). Monsty's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

Lumi Math Planet is free to download; Monsty costs $2.99 up front. Lumi Math Planet sells 1 one-off in-app purchase. Monsty asks for nothing beyond the download.

Monsty ships an update every 6 weeks, Lumi Math Planet every 3 days. Both last shipped on October 30, 2026.

## The numbers

| Metric | Monsty | Lumi Math Planet |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 days** |
| Size | 29 MB | 56 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [PATRICIA SAUER](https://appshunter.io/developer/1697710298) | [Guan Feng Lai](https://appshunter.io/developer/1136144960) |

## What reviewers say

### Monsty

[App page](https://appshunter.io/ios/app/monsty-first-math/id6738328693)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Monsty free?

Monsty costs $2.99, with no in-app purchases.

### Is Lumi Math Planet free?

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

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

Neither Monsty nor Lumi Math Planet shows ads.

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

Monsty ships an update every 6 weeks, and Lumi Math Planet every 3 days. Most recently, Monsty was updated on October 30, 2026 and Lumi Math Planet on October 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*