Ratio Divelogger vs krakentools
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ratio Divelogger
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Ratio Divelogger is a companion app for managing dives and synchronizing dive data from Ratio dive computers. Easily download your dive logs, view detailed dive profiles, track statistics, and store your entire diving history directly on your iPhone. Features include: • Download and manage dive logs from supported Ratio dive computers • View depth profiles, gas information, dive time, max depth and more • Organize, review and maintain your personal dive history • Secure storage of dives on your device • Simple and reliable connection workflow Designed for divers who want a clean, reliable and fast way to manage their dives on the go.
krakentools
This comprehensive dive toolbox offers planning and safety features for recreational, Nitrox, TEC, and CCR divers. It includes a digital logbook with Bluetooth connectivity for various dive computers, extensive import/export options, and tools for underwater media editing.
- Dive planner for various dive types
- Decompression planner with Bühlmann ZH-L16C
- Gas planning and analysis tools
- Digital logbook with Bluetooth sync
- Import/export dive data
- Underwater photo/video color correction
- CCR-specific dive tools
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KrakenTools – the all-in-one toolbox for recreational, Nitrox, TEC, and CCR divers. Version includes 26 professional dive tools, a reworked digital logbook, Bluetooth support for many dive computers, expanded import/export functions, and support for 164 languages. DIVE TOOLS FOR PLANNING AND SAFETY • Dive planner for air, Nitrox, single, repetitive, and multi-dive plans • Decompression planner with Bühlmann ZH-L16C • NDL, Nitrox, Trimix, Best Mix, and gas analysis • Gasblender with real-gas and Z-correction • CNS/OTU, gas density, minimum gas, rock bottom, turn pressure, and lost gas • Bailout, ICD, EAD, EADD, END, ENP, and CCR setpoint • New CCR tools: O₂ cell tracker, scrubber calculator, and scrubber tracking • Lift bag, weighting, and scenario calculators DIGITAL LOGBOOK • Reworked logbook with improved structure, stability, and interfaces • Bluetooth for Shearwater, Heinrichs Weikamp, Ratio, DiveSoft, Halcyon, DiveSystem, Scubapro, Mares, Aqua Lung, Cressi, Oceanic, and more • Import from Scubapro LogTRAK, Garmin FIT, DiveLog, Suunto, and other formats • Export as JSON, CSV, UDDF, DL7, Subsurface XML, and PDF • Dive profiles, statistics, analysis, projects, and groups KRAKENSTUDIO • UW Color Fix becomes KrakenStudio • Photo and video color fix for underwater media • Beta camera connection for Insta360, GoPro, DJI Osmo, and other action cams KrakenTools combines dive planning, gas planning, logbook, dive computer connection, media editing, and analysis in one modern app – developed by divers for divers. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Ratio Divelogger at none against krakentools's 3. krakentools's advantage is update cadence (every 8 days vs every 9 months). On price, ads, device support and iOS requirement 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. krakentools sells 3 in-app purchases, starting at $3.99 per month. Ratio Divelogger asks for nothing beyond the download.
Ratio Divelogger ships an update every 9 months, krakentools every 8 days. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.
| Parameter | Ratio Divelogger | krakentools |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Every 9 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.2 — better | 15.0 |
| Further details — not scored | ||
| Size | 90 MB | 140 MB |
| Age rating | 4+ | 4+ |
| Developer | Jiri Prajz | Arndt Kemper |
In-app purchases
Ratio Divelogger
No in-app purchases
krakentools
- KrakenTools Pro - Monthly$3.991 Month
- KrakenTools Pro - Yearly$44.991 Year
- KrakenTools Pro Version$49.99
Questions
Is Ratio Divelogger free?
Is krakentools free?
Do Ratio Divelogger or krakentools have ads?
Which is updated more often, Ratio Divelogger or krakentools?
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