Terrafin Mobile vs DiveGenius
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Terrafin Mobile
Access detailed marine data, including sea surface temperature, chlorophyll, and currents, for fishing, diving, and research. Download charts for offline use and track your vessel's location in real-time.
- Offline chart downloads
- Real-time vessel tracking
- Latitude/Longitude/Temperature readings
- Mark waypoints
- Distance & Bearing calculations
- Sea Surface Temperature charts
- Chlorophyll/Ocean Color charts
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Terrafin has provided key satellite data online for anglers, divers, and researchers since 1998. Now, Terrafin Mobile gives subscribers easy access to this data from your iPhone or iPad. Note: The Terrafin Mobile app installs with an assortment of sample charts, that you can use to try the various features. Access to current data requires an active subscription to the Terrafin website, available @ $119/year. Terrafin Mobile Features: • Browse Terrafin website to easily select charts. • Charts are downloaded to device for use offline. • Tap and drag cursor for accurate positioning. • Latitude / Longitude / Temperature readings at cursor. • Mark waypoints. • Distance & Bearing to waypoint or cursor. • Real time vessel location and track displayed on chart (GPS enabled device required). Data available with Terrafin Mobile • Hi Res (1.1km) Sea Surface Temperature Charts, updated multiple times daily. • Hi Res (1.1km) Chlorophyll / Ocean Color Charts, updated daily. • Altimetry (Sea Surface Height) Charts, updated daily. • Geostrophic Currents Charts, updated daily. • CloudFree SST charts, updated daily. • LEO 1 Day Composite SST charts, updated daily. Areas of Coverage: • U.S. East, West, and Gulf Coasts • Alaska & Hawaii • Caribbean & Bermuda • Mexico, including Baja and Sea of Cortez • Central America (Pacific Coast) • Venezuela • Brazil • Australia East Coast • Northwest Africa SAVE FUEL – SAVE $$$ - CATCH MORE FISH!
DiveGenius
Get real-time dive conditions directly on your lock screen. Check visibility, surf size, water temperature, and local notes before you go diving. Make informed decisions about your dive day with quick, glanceable information.
- Lock screen widgets
- Live dive reports
- Visibility updates
- Surf size information
- Water temperature
- Local dive spot notes
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Tired of pulling up three different apps just to see if today’s good for diving? This puts everything you care about right on your lock screen. - Lock screen widgets with live dive reports - Visibility updates so you know if the water’s clear - Surf size so you’re not surprised by big sets - Current water temps for that first splash - Local notes from the spots you actually dive No more guessing when you’re packing gear. Just glance at your phone and know if it’s a kelp forest day or a stay on land day. It’s simple, quick, and built for divers who actually get in the water. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: Terrafin Mobile at 5.0 against DiveGenius's 3.5. Terrafin Mobile also leads on chart position (#190 vs unranked) and device support (3 vs 1). DiveGenius's advantage is monetization model (free with in-app purchases vs subscription) and update cadence (weekly vs every 6 weeks). On price, 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. Terrafin Mobile sells 1 one-off in-app purchase and DiveGenius sells 5 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Terrafin Mobile holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews complicate that: 36% of Terrafin Mobile's written reviews are positive against 50% of DiveGenius's, so the app with the better star average is not the one people write more warmly about.
Terrafin Mobile ships an update every 6 weeks, DiveGenius weekly. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.
| Parameter | Terrafin Mobile | DiveGenius |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 3.5 (4 ratings) |
| Positive reviews | 36.4% of reviews | 50.0% of reviews — better |
| Number of ratings | 1 | 4 — better |
| Update frequency | Every 6 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Subscription | Free with in-app purchases — better |
| Best chart rank | #190 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 47 MB | 313 MB |
| Age rating | 4+ | 4+ |
| Developer | Terrafin Satellite Imaging | Brett Roeloffs |
Customer experience
Terrafin Mobile
DiveGenius
In-app purchases
Terrafin Mobile
- Terrafin Membership 12 Months$119.00
DiveGenius
- DiveGenius Pro$4.997 Days
- DiveGenius Pro$5.991 Month
- DiveGenius Pro$8.991 Month
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- DiveGenius Pro Yearly$49.991 Year
- Wallpaper Pack$4.99
Questions
Is Terrafin Mobile free?
Is DiveGenius free?
Which has better reviews, Terrafin Mobile or DiveGenius?
Do Terrafin Mobile or DiveGenius have ads?
Which is updated more often, Terrafin Mobile or DiveGenius?
Other comparisons
