# MClass vs Rectoly for Zotero

The clearest difference is in-app purchases: MClass at none against Rectoly for Zotero's 2. MClass also leads on iOS requirement (15.6 vs 17.0). Rectoly for Zotero's advantage is update cadence (daily vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. Rectoly for Zotero sells 2 one-off in-app purchases. MClass asks for nothing beyond the download.

MClass ships an update every 4 months, Rectoly for Zotero daily. The most recent releases landed on October 5, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | MClass | Rectoly for Zotero |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Daily** |
| Size | 57 MB | 45 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [南京极域信息科技有限公司](https://appshunter.io/developer/1268970527) | [Takaki Takemura](https://appshunter.io/developer/6793454900) |

## What reviewers say

### MClass

[App page](https://appshunter.io/ios/app/mclass/id1505691688)

**In-app purchases:** none


### Rectoly for Zotero

[App page](https://appshunter.io/ios/app/rectoly-for-zotero/id6803044396)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 14-day Trial | Free | one-time |
| Rectoly Pro (one-time) | $19.99 | one-time |


## Frequently asked questions

### Is MClass free?

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

### Is Rectoly for Zotero free?

Rectoly for Zotero is free to download, with in-app purchases available.

### Do MClass or Rectoly for Zotero have ads?

Neither MClass nor Rectoly for Zotero shows ads.

### Which is updated more often, MClass or Rectoly for Zotero?

MClass ships an update every 4 months, and Rectoly for Zotero daily. Most recently, MClass was updated on October 5, 2026 and Rectoly for Zotero on October 11, 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.*