NDL vs DecoPlanner mobile
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NDL
Confirm your diver or freediver status online and save electronic certificates offline. This app offers a free log-book and No-decompression limit planner, along with the latest news from the National Dive League. Professionals can also manage certificates and access the NDL Professional Zone.
- Confirm diver status online
- Save electronic certificates offline
- Free log-book
- No-decompression limit planner
- Latest news from National Dive League
- Manage certificates for professionals
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The official mobile app from NDL, in which you can confirm your status as a diver or freediver online, and also save electronic certificates offline. Free log-book and No-decompression limit planner. With the help of the application you will receive the latest news from the National Dive League, and professionals will receive a convenient tool for ordering certificates and working with NDL Professional Zone from mobile devices. NDL is diving of the XXI century.
DecoPlanner mobile
Plan complex dive profiles using advanced decompression models. Track multiple gases, manage dive buddies, and visualize dive data with detailed graphs. Choose the version that suits your diving certification level.
- Open/Closed/Passive Semi-Closed Circuit planning
- ZH-L16 / VPM-B decompression models
- Gas tracking for multiple gases and dive buddies
- Gas mixing (partial pressure & continuous blending)
- Dive profile and tissue compartment graphs
- Diving level selection (Rec 1 to Unlimited CCR)
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Features: Open Circuit / Closed Circuit / Passive Semi-Closed Circuit planning ZH-L16 / VPM-B decompression models Convenient grouping of decompression stops Gas tracking of multiple gases and dive buddies Gas mixing through partial pressure and continuous blending Multiple graphs outlining dive profiles and tissue compartment pressures Select the version fitting your current level of diving, from Rec 1 to Unlimited CCR. More information at www.gue.com/store/software/decoplanner-4
Screenshots
Verdict
The clearest difference is review sentiment: NDL at 67% against DecoPlanner mobile's 40%. DecoPlanner mobile's advantage is update cadence (every 2 months vs every 5 months). On price, ads, in-app purchases and monetization model 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.
NDL ships an update every 5 months, DecoPlanner mobile every 2 months. The most recent releases landed on September 21, 2026 and October 11, 2026 respectively.
| Parameter | NDL | DecoPlanner mobile |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 66.7% of reviews — better | 40.0% of reviews |
| Update frequency | Every 5 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 17 MB | 74 MB |
| Age rating | 4+ | 4+ |
| Developer | NDL, UCH | Global Underwater Explorers Inc. |
Customer experience
NDL
DecoPlanner mobile
In-app purchases
NDL
No in-app purchases
DecoPlanner mobile
No in-app purchases
