Deep Tools vs DiveSync
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Deep Tools
This app is a comprehensive tool for divers, offering dive planning, logging, and gas blending. It supports recreational, technical, and rebreather diving with advanced decompression planning and dive computer integration. Plan complex dives, log your adventures, and mix gases with precision.
- Decompression dive planning (Bühlmann ZH-L16)
- Dive log with Shearwater import
- Nitrox and Trimix gas blending
- Multiple dive calculators
- Metric and imperial unit support
- Multi-level and repetitive dive planning
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The complete dive planner, dive log and dive calculator app for recreational, technical and rebreather divers. Plan decompression dives with Bühlmann ZH-L16 and gradient factors, import your dives from a Shearwater dive computer, blend nitrox and trimix, and get quick answers to the questions you ask before every dive. All in one app, for open circuit (OC) and CCR. Whether you are in dive training, planning complex deco dives, or logging your underwater adventures, Deep Tools gives you reliable results you can trust. DIVE CALCULATORS - Maximum Operating Depth (MOD) - Oxygen partial pressure (ppO₂) - Equivalent Air Depth (EAD) - Equivalent Narcotic Depth (END) - Equivalent Air Density Depth (EADD) - No Decompression Limit (NDL) - Best nitrox mix for depth - Best trimix mix for depth - Gas consumption (SAC / RMV) and gas density - Lift bag calculator DECO PLANNER * Plan complex dives with confidence on open circuit (OC) or rebreather (CCR): - Bühlmann ZH-L16B and ZH-L16C with gradient factors (GF) - Multi-level and repetitive dive planning - Lost gas plans and CCR bailout planning, with custom bailout points - Gas consumption, CNS and OTU for every dive - Dive profile, run time table, tissue pressure graph and slate view - Share dive plans as a file, text, slate or image DIVE LOG * - Import dives from Shearwater dive computers (Petrel, Perdix, NERD, Teric and more) - Full dive profile with ppO₂, CNS, TTS, SAC and gas density - Dive sites with name, coordinates, map and custom tags - Automatically merge dives with short surface intervals - Share dives with your buddies - Local backup and easy transfer to a new device GAS BLENDER * Mix accurate nitrox and trimix: - Partial pressure blending to the desired gas - Blending with a top-off gas - Continuous flow blending - Gas cost estimate MORE - Metric and imperial units - Altitude diving and water type (salt, fresh, EN13319) - Custom tank / cylinder database - Available in 11 languages * The deco planner, dive log and gas blender are included in Deep Tools Premium. Try them free during the free trial. Deep Tools is a planning aid. It does not replace proper dive training or certification. Special thanks to V. Paul Gordon, Serge Nelissen and Michael Heus for extensive testing and valuable contributions. Terms of Use: https://www.deepblue.si/privacy/terms-of-service.php Privacy Policy: https://www.deepblue.si/privacy/
DiveSync
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Introduction: DiveSync is a free mobile app that connects your mobile device to your dive computer to manage and organize your precious dive data. DiveSync enables users to view, edit, and analyze previous dives, add locations and photos, and easily update the dive computer firmware. DiveSync is compatible with select dive computers from Cressi, Genesis, OceanPro, Sherwood, and XS Scuba. Key Features: Dive Log: Download, view, and manage your dive logs from your dive computer to your mobile device. Automatically download dives or manually add them to create an extensive logbook. Data: Analyze data such as dive time, max depth, tissue loading, ascent rates, and much more. Dive profiles can be viewed in both graphical and tabular formats. Planning: Set alerts for time and depth, set gas mixes, and manage your dive profile. Customization: Add memos, dive spots, dive photos, and observations. Dive Spots: Accurately add dive locations via Apple Maps. DC Control: Set device settings for your dive computer and perform firmware updates. Bluetooth: Transfer dive data from your dive computer using Bluetooth 5.0 ensuring fast download and upload times. Compatibility: Currently supports Cressi Davinci, XS Scuba Skiff, Oceanpro Spirit, Genesis Graviton, Sherwood Logic+ and Sherwood Wisdom 5 Supported Mobile Platforms: iOS. Summary: DiveSync is a free iOS dive log app that allows you to access and download your dive logs using a streamlined interface and user experience. Automatically download new dives or manually input information with compatible Bluetooth LE enabled dive computers from Cressi, XS Scuba, and Oceanpro. (Currently compatible models include the Cressi Davinci, XS Scuba Skiff, Oceanpro Spirit, Genesis Graviton, Sherwood Logic+, and Sherwood Wisdom 5) To get support from the developers, please use the in-app menu to “Send to Tech Support” and reach out to support@divesync.io. Additional troubleshooting and FAQs may be found directly at the DiveSync website. (www.divesync.io) DiveSync is free and all data is stored locally on your device. Your dive data is not used for any commercial purpose and is not monetized.
Screenshots
Verdict
The clearest difference is in-app purchases: DiveSync at none against Deep Tools's 3. DiveSync also leads on update cadence (every 2 weeks vs every 2 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. Deep Tools sells 3 in-app purchases, starting at $7.99 per month. DiveSync asks for nothing beyond the download.
Deep Tools ships an update every 2 months, DiveSync every 2 weeks. The most recent releases landed on November 11, 2026 and November 8, 2026 respectively.
| Parameter | Deep Tools | DiveSync |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (93 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 93 — better | — |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 | 16.5 — better |
| Further details — not scored | ||
| Size | 13 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | Deep Blue d.o.o. | Proasia Design Co. Ltd |
In-app purchases
Deep Tools
- Subscription Monthly$7.991 Month
- Subscription Yearly3 Days trial$22.991 Year
- Lifetime Subscription$49.99
DiveSync
No in-app purchases





