# Simple Study Stamp vs Study Time Memo

The clearest difference is in-app purchases: Simple Study Stamp at none against Study Time Memo's 1. On price, ads, device support and iOS requirement there is nothing between them.

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

## The numbers

| Metric | Simple Study Stamp | Study Time Memo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 10 days | — |
| Size | 10 MB | 5 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Futoshi Akahoshi](https://appshunter.io/developer/1811302322) | [丽佳 施](https://appshunter.io/developer/1894580777) |

## 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


### Study Time Memo

[App page](https://appshunter.io/ios/app/study-time-memo-subject-log/id6794255516)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is Simple Study Stamp free?

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

### Is Study Time Memo free?

Study Time Memo is free to download, with in-app purchases available.

### Do Simple Study Stamp or Study Time Memo have ads?

Both Simple Study Stamp and Study Time Memo show ads.

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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.*