Dive Log Book vs nDeco
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Dive Log Book
Easily import and manage your dive profiles from compatible dive computers or manually log your dives. Access global dive weather conditions and a photo library of marine life for an enhanced diving experience.
- Import dive profiles from SmartTRAK/DataTRAK
- Transfer data from SCUBAPRO UWATEC computers
- Manual dive logging
- Photo library of marine life
- Global dive weather conditions
- Educational tool for divers
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Dive Log Book, developed by DNA BLU, allows you to import and display dive profile data from SmartTRAK and DataTRAK files from your PC, transferring them to your iPhone. This application allows divers to transfer and carry dive data from all dives recorded using SCUBAPRO UWATEC dive computers (Aladin, Smart and Galileo series). It also lets you manually insert dives on your iPhone. A photo library is also accessible, including various fish, corals and nudibranch images, resulting in an ideal educational tool for all levels of divers. This application also makes specific dive weather conditions easily accessible, including temperatures, winds, wave heights & lengths for the entire globe. This data is courtesy of NOAA, usno.navy.mil and the “Lamma Consortium of the Regione Toscana”.
nDeco
Plan multi-segment dives with ease using U.S. Navy and Bühlmann decompression models. Get instant dive information, depth limit guidance, and surface interval recommendations for safe underwater adventures.
- Multi-segment dive planning
- U.S. Navy & Bühlmann decompression models
- Depth limit guidance
- Instant dive information
- Surface interval recommendations
- Metric/imperial unit flexibility
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WHAT MAKES nDeco UNIQUE? * Simple and easy Dive Planning: Calculate multi-segment dive profiles * Safety First Approach: Built on U.S. Navy Diving Manual and Bühlmann ZH-L16 decompression models * Easy-to-Use Interface: Plan complex dives with just a few taps * Dynamic dive information * Easy to simulate multi segments dive scenarios KEY FEATURES: * Depth Limit Guidance: Safely plan dives from shallow reefs to deeper explorations * Multi-Segment Dive Planning: Create detailed dive profiles with multiple depth segments * Instant Dive Information: See total dive time, descent/ascent times, and surface intervals * Unit Flexibility: Switch between metric (meters) and imperial (feet) with one tap * Surface Interval Recommendations: Ensures safe intervals between multiple daily dives DESIGNED FOR DIVERS BY DIVERS for the recreational diver- nDeco provides the tools you need to plan safe, enjoyable underwater adventures. SAFETY DISCLAIMER: * Calibrated for sea-level, salt water diving * Designed for compressed air (21% oxygen) * Always dive within your training and certification limits DIVE SAFE. DIVE SMART. DIVE nDeco!
Screenshots
Verdict
The clearest difference is rating: nDeco at 2.0 against Dive Log Book's 1.3. Dive Log Book's advantage is review sentiment (19% vs 0%) and ratings volume (3 vs 1). On price, update cadence, ads and in-app purchases 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.
nDeco holds the better App Store score, 2.0 against 1.3. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews complicate that: 19% of Dive Log Book's written reviews are positive against 0% of nDeco's, so the app with the better star average is not the one people write more warmly about.
Dive Log Book ships an update every 5 months, nDeco every 7 months. The most recent releases landed on October 12, 2026 and September 27, 2026 respectively.
| Parameter | Dive Log Book | nDeco |
|---|---|---|
| Price | Free | Free |
| Rating | 1.3 (3 ratings) | 2.0 (1 ratings) — better |
| Positive reviews | 18.5% of reviews — better | 0.0% of reviews |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 5 months — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 8.0 — better | 17.2 |
| Further details — not scored | ||
| Size | 28 MB | 73 MB |
| Age rating | 4+ | 4+ |
| Developer | Massimiliano Petrucci | Eyal Vardi |
Customer experience
Dive Log Book
nDeco
In-app purchases
Dive Log Book
No in-app purchases
nDeco
No in-app purchases









