# Simple Study Stamp vs StudyCal

The clearest difference is in-app purchases: Simple Study Stamp at none against StudyCal's 3. StudyCal's advantage is ads (none vs shown) and update cadence (every 3 days vs every 10 days). On price and device support there is nothing between them.

Both are free to download. StudyCal sells 3 in-app purchases, starting at $0.99 per month. Simple Study Stamp asks for nothing beyond the download.

Simple Study Stamp ships an update every 10 days, StudyCal every 3 days. The most recent releases landed on October 16, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Simple Study Stamp | StudyCal |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 10 days | **Every 3 days** |
| Size | 10 MB | 59 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Futoshi Akahoshi](https://appshunter.io/developer/1811302322) | [Kazuaki Takahashi](https://appshunter.io/developer/1691521543) |

## 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


### StudyCal

[App page](https://appshunter.io/ios/app/studycal-study-planner/id6785962096)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro+ 月額プラン | $0.99 | per month |
| Pro+ 年額プラン | $9.99 | per year |
| 勉強カレンダー Pro | $1.99 | one-time |


## Frequently asked questions

### Is Simple Study Stamp free?

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

### Is StudyCal free?

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

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

Simple Study Stamp shows ads; StudyCal does not.

### Which is updated more often, Simple Study Stamp or StudyCal?

Simple Study Stamp ships an update every 10 days, and StudyCal every 3 days. Most recently, Simple Study Stamp was updated on October 16, 2026 and StudyCal on October 29, 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.*