# Steppi vs IDD / IADS

The clearest difference is update cadence: Steppi at every 2 months against IDD / IADS's every 4 months. Steppi also leads on iOS requirement (11.0 vs 15.6). 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.

Steppi ships an update every 2 months, IDD / IADS every 4 months. The most recent releases landed on May 16, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Steppi | IDD / IADS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Size | 36 MB | 31 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [PIM B.V.](https://appshunter.io/developer/1469985516) | [Professional Dive Association Holding B.V.](https://appshunter.io/developer/1673748453) |

## What reviewers say

### Steppi

[App page](https://appshunter.io/ios/app/steppi/id1609246913)

**Features:** macOS Compatibility

**In-app purchases:** none


### IDD / IADS

[App page](https://appshunter.io/ios/app/idd-iads/id1673748451)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Steppi free?

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

### Is IDD / IADS free?

IDD / IADS is free to download, with no in-app purchases.

### Do Steppi or IDD / IADS have ads?

Neither Steppi nor IDD / IADS shows ads.

### Which is updated more often, Steppi or IDD / IADS?

Steppi ships an update every 2 months, and IDD / IADS every 4 months. Most recently, Steppi was updated on May 16, 2026 and IDD / IADS on September 13, 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.*