# iClass vs PDCA Success

The clearest difference is update cadence: iClass at every 9 days against PDCA Success's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

iClass ships an update every 9 days, PDCA Success every 3 weeks. The most recent releases landed on June 7, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | iClass | PDCA Success |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Size | 43 MB | 108 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Bentic, JSC.](https://appshunter.io/developer/1196587398) | [PDCA INNOVATION](https://appshunter.io/developer/1823042208) |

## What reviewers say

### iClass

[App page](https://appshunter.io/ios/app/iclass/id1404257516)

**Features:** macOS Compatibility

**In-app purchases:** none


### PDCA Success

[App page](https://appshunter.io/ios/app/pdca-success/id6747833832)

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

**In-app purchases:** none


## Frequently asked questions

### Is iClass free?

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

### Is PDCA Success free?

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

### Do iClass or PDCA Success have ads?

Neither iClass nor PDCA Success shows ads.

### Which is updated more often, iClass or PDCA Success?

iClass ships an update every 9 days, and PDCA Success every 3 weeks. Most recently, iClass was updated on June 7, 2026 and PDCA Success on September 14, 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.*