# Simple Study Stamp vs LuneaLang

The clearest difference is in-app purchases: Simple Study Stamp at none against LuneaLang's 1. Simple Study Stamp also leads on iOS requirement (17.0 vs 26.2). LuneaLang's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. LuneaLang sells 1 one-off in-app purchase. Simple Study Stamp asks for nothing beyond the download.

## The numbers

| Metric | Simple Study Stamp | LuneaLang |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 10 days | — |
| Size | 10 MB | 22 MB |
| Requires iOS | **17.0** | 26.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Futoshi Akahoshi](https://appshunter.io/developer/1811302322) | [Kawamata Koichiro](https://appshunter.io/developer/788575817) |

## What reviewers say

### Simple Study Stamp

[App page](https://appshunter.io/ios/app/simple-study-stamp/id6757266510)

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

**In-app purchases:** none


### LuneaLang

[App page](https://appshunter.io/ios/app/lunealang/id6761094698)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $29.99 | one-time |


## Frequently asked questions

### Is Simple Study Stamp free?

Simple Study Stamp is free to download, with no in-app purchases.

### Is LuneaLang free?

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

### Do Simple Study Stamp or LuneaLang have ads?

Simple Study Stamp shows ads; LuneaLang 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.*