Gas*Blender vs Caveradar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Gas*Blender
Read full descriptionHide full description
GasBlender is helping you calculate which gasses you should dive with, few input fields and easy to read output for at better experience. GasBlender supports Best mix and MOD for both Nitrox and Trimix and continous blending Nitrox and Trimix. For more info see http://www.gasblender.dk Please send feedback and feature requests to feedback@gasblender.dk
Caveradar
Plan cave dives with detailed condition reports, weather context, and directions. Access key information offline and find local dive partners. Contribute reports to keep conditions updated for the community.
- Recent cave condition reports
- Weather context for dive sites
- Driving directions and access info
- Offline caching of key data
- Partner listings for instructors/centers
- Fast, dropdown-only report contribution
Read full descriptionHide full description
Caveradar. Know before you dive. Plan your cave dives with confidence using recent, structured condition reports — plus weather context and directions — whether you're planning tomorrows' dive in Florida, next weeks' dives in Mexico or next years' trip to France. What you get: • Recent cave-condition reports: visibility + flow + hazards (structured, easy to compare) • Weather context for every site • Driving directions + access context to simplify planning • Offline caching: key info stays available at the site even with weak signal • Partner listings in-app: find endorsed instructors and dive centers Contribute (fast, no noise): • Add a report in seconds using dropdown-only inputs - no typing • Every report helps keep conditions fresh for the next team Coverage: • France: Lot, Hérault, Ardèche and Doubs (new addition!) • Germany: nationwide coverage • Switzerland • Italy: most regions (expanding) • UK: some caves, expanding • USA: Florida • Mexico: Quintana Roo • Norway • Sweden • Finland • New Zealand • Australia • Spain (new addition!) Built for cave divers, by cave divers. Important: The information presented on this platform is not a substitute for proper cave diving training, certification, personal site assessment, or professional guidance.
Screenshots
Verdict
The clearest difference is price: Caveradar at Free against Gas*Blender's $2.99. Caveradar also leads on update cadence (every 4 days vs every 3 months) and iOS requirement (15.1 vs 26.0). Gas*Blender's advantage is in-app purchases (none vs 1). On ads 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
Caveradar is free to download; Gas*Blender costs $2.99 up front. Caveradar sells 1 in-app purchase, starting at $1.99 per month. Gas*Blender asks for nothing beyond the download.
Gas*Blender ships an update every 3 months, Caveradar every 4 days. The most recent releases landed on October 3, 2026 and October 7, 2026 respectively.
| Parameter | Gas*Blender | Caveradar |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | — | 1.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 26.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 4 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | Martin Schyth | Harald Franzen |
In-app purchases
Gas*Blender
No in-app purchases
Caveradar
- Caveradar Premium$1.991 Month
