Oceanus vs Depth.
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Oceanus
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Log the dive. Name what you saw. Keep both in one place. Oceanus is a scuba and freediving logbook with an AI marine species identifier built in. Record depth, time, tank and conditions — then point your camera at a fish and pin it to the dive it came from. THE LOGBOOK - Log by hand in under a minute: date and time, duration, max and average depth, location - Import straight from a .FIT file exported by a Garmin dive computer, depth profile included - Read the depth profile as a chart on the detail screen - Scuba and freediving are both first-class types - Conditions: salt, fresh or brackish water, water temperature, visibility from poor to excellent - Gear: suit from shorty through 3/5/7 mm wetsuit, semi-dry and drysuit; tank from aluminum 63 through steel 120, doubles and sidemount; start and end pressure - Free-text title and notes on every entry - Link the species you identified to the dive they belong to - Everything syncs to your account and follows you to any device you sign in on AI SPECIES IDENTIFICATION - Point the camera at a fish, shark, ray or invertebrate and get an identification back - Species profiles with scientific name, depth range, geographic regions, danger level and conservation status - Browse the catalog by category: fish, sharks, rays, mammals, reptiles, mollusks, crustaceans, cnidarians - Save any species to favorites - Everything you identify joins your personal collection DIVERS, NOT JUST DIVES - Find divers by nickname, follow them, and watch their diving arrive in the Friends feed - Like the ones you enjoyed - 34 achievements, from your first identification to a full-category sweep - A global leaderboard scored on Ocean Score, recalculated nightly: species x10, identifications x2, achievements x25, streak x5 - A certification wallet for your scuba, freediving, specialty and first-aid cards. Medical entries stay private and are never published. - Share an entry as a sticker sized for Instagram Stories PREMIUM Premium unlocks AI Dive Story: turn a photo from a diving trip into a cinematic underwater scene. A monthly generation limit applies and is shown in the app. WHO IT IS FOR Recreational scuba divers who want the logbook on their phone instead of in a soggy paper book. Freedivers. Snorkelers. Anyone who surfaces with a photo of a fish and no idea what it was. Available in English, Spanish, Portuguese, Italian, Polish, Russian and Ukrainian. Oceanus does not replace your dive computer and is not a dive planner. It does not calculate decompression or no-stop limits. Always dive within your training and follow your computer.
Depth.
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Depth. is your dive log for iPhone. Simple, fast and beautiful. LOG EVERY DIVE Location, depth, dive time, water temperature, visibility, equipment, weights and buddy all in one place. Dives are automatically saved to your account. MARINE SPECIES Save species you encounter during your dive. Depth. has an extensive catalog with photos and information about fish, coral and other underwater animals. BUDDY SYSTEM Send a dive directly to your buddy via their Depth ID. They will see your log appear in their timeline. AI ASSISTANT Ask questions about diving techniques, species or your equipment. The built-in AI assistant will help you further. EXPORT Download all your dives as JSON, CSV or XML compatible with other logbooks. IMPORT Do you dive via Diviac? Import all your existing dives with one tap. DESIGNED FOR DIVERS No subscriptions. No ads. Just a clean, quick logbook that you always have with you.
Screenshots
Verdict
The clearest difference is in-app purchases: Depth. at none against Oceanus's 2. Depth. also leads on ads (none vs shown). Oceanus's advantage is update cadence (every 5 days vs every 5 weeks). On price, 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. Oceanus sells 2 in-app purchases, starting at $3.99 per month. Depth. asks for nothing beyond the download.
Oceanus ships an update every 5 days, Depth. every 5 weeks. The most recent releases landed on October 5, 2026 and October 12, 2026 respectively.
| Parameter | Oceanus | Depth. |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 days — better | Every 5 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 51 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Mikhail Listratsenka | Josephus Fransiscus Zegers |
In-app purchases
Oceanus
- Premium Monthly$3.991 Month
- Premium Yearly3 Days trial$29.991 Year
Depth.
No in-app purchases









