Steppi vs IDD / IADS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Steppi
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The Steppi app is available to everyone and provides more information about Steppi and makes it easy to contact us via chat! If you have any questions, all your questions will be answered here!
IDD / IADS
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Instructor Dive Development (IDD) is the first European professional diving organization that developed the modular teaching system and is a leader in the European diving world. IDD was founded in 1990 in the Netherlands. We offer training of all levels at the highest quality. IDD certifications are recognized worldwide! Did you know that there are only a few worldwide recognized dive certifications? The IDD certification is next to PADI, SSI and NOB the Dutch training organization with hundreds of affiliated diving schools in the Netherlands, Curacao, Thailand and many more places in the world. We are proud to say that we have been around since 1992 and we were the first European professional dive organisation to develop the modular teaching system. Besides the basic diver courses we also offer many specialties which you can do if you have been diving for a while. If you are certified by one of the other organisations that is no problem.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Steppi | IDD / IADS |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 11.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 36 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | PIM B.V. | Professional Dive Association Holding B.V. |
In-app purchases
Steppi
No in-app purchases
IDD / IADS
No in-app purchases
