ScubaBuddy vs Thalos
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ScubaBuddy
This app helps recreational divers meticulously record their underwater adventures. It allows users to log dive details, store certifications, and track diving statistics in a simple, intuitive interface. Keep your entire diving journey organized and accessible.
- Complete dive logbook
- Certification tracking
- Diving statistics
- Intuitive interface
- Secure dive memory storage
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Meet ScubaBuddy, the essential dive logging app for recreational divers. Keep your entire diving journey organized in one beautiful, easy-to-use app. COMPLETE DIVE LOG BOOK Capture every detail of your underwater adventures. Log depth, bottom time, water temperature, visibility, and notes. Build a comprehensive record of every dive you've ever made. CERTIFICATION TRACKING Store all your scuba certifications in one place. Keep track of your Open Water, Advanced, Rescue Diver, and specialty certs. Your credentials, always accessible. GEAR LOCKER Catalog all your scuba gear in one place — track brand, model, serial number, and condition for everything from your regulator to your BCD. Set service intervals and get at-a-glance status alerts so you always know what's due for maintenance before your next dive. DIVING STATISTICS Watch your experience grow with insightful stats. Total dives, maximum depth, cumulative bottom time, and more. Celebrate milestones and track your progress as a diver. DIVE CONDTIONS Get real-time weather and marine conditions for any location around the world — plus a 7-day forecast and 7-day history — so you can plan ahead and review past conditions before your next dive. Search for a dive site to instantly see current conditions, upcoming forecasts, and archived data including wave height, wind speed, and dive ratings. WEIGHT CALCULATOR Helps you dial in your ballast before every dive, factoring in your body weight, wetsuit type, tank, water type, and any additional gear. Enter your details once and get a recommended starting weight in metric or imperial units, ready to fine-tune in the water. DESIGNED FOR SIMPLICITY Clean, intuitive interface that makes logging dives quick and painless. Spend less time on your phone and more time planning your next dive. Whether you're diving your local quarry or exploring tropical reefs, ScubaBuddy keeps your dive memories organized and secure. Download now and start building your digital dive log!
Thalos
This comprehensive dive app offers a robust dive logbook, detailed dive site information with emergency plans, and multiple dive calculators. It includes features for instructors to manage students and courses, and a social feed for divers to connect and share experiences. The app works fully offline, ensuring critical data is always accessible.
- Offline dive logbook
- Dive site database with emergency plans
- 9 essential dive calculators
- Instructor module for course management
- Social feed and community features
- Emergency mode for critical access
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Thalos is the all-in-one dive app built for serious divers and instructors. Whether you're planning a deep technical dive or running an open water course, Thalos has everything you need — and it works fully offline when it matters most. DIVE LOGBOOK Log every dive with depth, time, gas, conditions, marine life sightings, buddy signatures, and photos. Full version history keeps your records safe. Organize dives into trips and track your personal certifications. DIVE SITES & EMERGENCY PLANS Access 510+ dive sites with detailed emergency action plans, nearest hyperbaric chambers, and emergency contacts — all stored locally so they're available even without signal. 9 DIVE CALCULATORS • Bühlmann ZHL-16C decompression planner with gradient factors • Gas planner and gas blending • SAC rate, turn pressure, weight calculator • Dive tables, unit converter, altitude diving EMERGENCY MODE One tap gets you to emergency procedures and critical contacts. Works 100% offline. INSTRUCTOR MODULE Manage students, run courses with 26 built-in templates, track skill sign-offs, generate paperwork (liability waivers, medical forms, training dives), and issue certifications. SOCIAL FEED & TANK TAPS Share your dives, follow other divers, and give Tank Taps — the diver's way of saying nice dive. COMMUNITY Discover and post dive classes, trips, and dive centers. Instructors can manage enrollments directly in the app. SUBSCRIPTION Thalos requires a subscription after a 1-month free trial. $2.99/month or $19.99/year. Terms of Use: https://blackflagdivecenter.github.io/Thalos/terms.html Privacy Policy: https://blackflagdivecenter.github.io/Thalos/privacy.html
Screenshots
Verdict
The clearest difference is in-app purchases: ScubaBuddy at none against Thalos's 2. ScubaBuddy also leads on ratings volume (12 vs 2). Thalos's advantage is update cadence (daily vs every 2 weeks) and iOS requirement (15.1 vs 17.0). On price, rating, 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
Both are free to download. Thalos sells 2 in-app purchases, starting at $2.99 per month. ScubaBuddy asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for ScubaBuddy against 5.0 for Thalos. That said, the two scores are not equally well evidenced: ScubaBuddy has 12 ratings behind it against 2, so its average is the more settled of the two.
ScubaBuddy ships an update every 2 weeks, Thalos daily. The most recent releases landed on October 24, 2026 and October 13, 2026 respectively.
| Parameter | ScubaBuddy | Thalos |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (12 ratings) | 5.0 (2 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 12 — better | 2 |
| Update frequency | Every 2 weeks | Daily — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Subscription |
| Devices | iPhone, iPad, Mac — better | iPhone, iPod |
| Requires iOS | 17.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 3 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | Suraj Pindoria | JOHN WALLIS YOUNGBLOOD |
Customer experience
ScubaBuddy
Thalos
In-app purchases
ScubaBuddy
No in-app purchases
Thalos
- Thalos1 Month trial$2.991 Month
- Thalos1 Month trial$19.991 Year









