# StudyCal vs PIECE

The clearest difference is in-app purchases: PIECE at none against StudyCal's 3. StudyCal's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, update cadence and ads there is nothing between them.

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

Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | StudyCal | PIECE |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 days | Every 3 days |
| Size | 59 MB | 12 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kazuaki Takahashi](https://appshunter.io/developer/1691521543) | [Shuntaro Shimada](https://appshunter.io/developer/1851679432) |

## What reviewers say

### 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 |


### PIECE

[App page](https://appshunter.io/ios/app/piece/id6796343521)

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

**In-app purchases:** none


## Frequently asked questions

### Is StudyCal free?

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

### Is PIECE free?

PIECE is free to download, with no in-app purchases.

### Do StudyCal or PIECE have ads?

Neither StudyCal nor PIECE shows ads.

### Which is updated more often, StudyCal or PIECE?

StudyCal ships an update every 3 days, and PIECE every 3 days. Most recently, StudyCal was updated on October 29, 2026 and PIECE on October 24, 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.*