Comparison

Diving Log vs Scuba Diving Logbook Octologs

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Diving Log

Record your scuba diving activities, including dive data, weather conditions, and photos. Create visual "DiveLines" of your underwater experiences and share them with friends. An optional add-on allows for additional features and ad removal.

Highlights
  • Logbook and DiveLine creation
  • Location tracking for dives
  • CSV and image file export
  • Map view of dive locations
  • Record dive data and weather
  • Add photos to DiveLines
Features
Read full description

"DivingLog" is a Scuba Diving LogBook app for smartphones and tablets. Have you thought that you want to record the activity in the water when writing a logbook of scuba diving? For example, Record of practice of neutral buoyancy, Record of fishes you met, etc... You will be able to create "DiveLine" in addition to the LogBook by "DivingLog". "DiveLine" is a record of activities and photos in water. You can create an image file of the "LogBook" and image file of "DiveLine", and you can share those image file with your friends through the SNS, such as facebook and twitter. Ad will appear in the app, but you can hide Ad by having you purchase the add-on. ■Main function of App 1. Creating, editing and viewing of Scuba Diving LogBook and DiveLine. 2. Creating, editing and viewing of Scuba Diving LogBook and DiveLine with location information. 3. CSV file output of the Scuba Diving LogBook and DiveLine. 4. Image file output of the Scuba Diving Log Book and DiveLine. 5. List of pictures recorded. 6. Map that displays the Scuba Diving LogBook. ■List of items that can be recorded 1. Base Info ・Date ・Area ・Point ・Type ・Location Information 2. Dive Data ・Entry ・Exit ・DiveTime(Auto calculation) ・Enyry Air ・Exit Air ・Consume(Auto calculation) ・Average Depth ・Max Depth 3. Weather Data ・Weather ・Temperature ・Water Temperature ・Visibility ・Wave ・Current ・Swell ・Wind Direction ・Wind 4. Equipment Data ・Suit ・Suit Thickness ・Tank ・Gus Type *need add-on. ・Weight 5. Buddy Data ・Leader ・Buddy ・Instructor 6. Record of activity in the water "DiveLine" ・Entry/Exit Time ・Note ・Photo 7. Other ・Instructor Sign ・Handwritten Notes ・Free Memo *need add-on. ■How to Create Scuba Diving LogBook 1. Create Scuba Diving LogBook If you want to create a new LogBook, please press the "New LogBook" button in Home Screen. 2. Create Scuba Diving LogBook with location information. If you want to create a new Log Book with location information, please press the "New LogBook with GPS" button in Home Screen. if you create a new Log Book in this way in the beach or on the boat before entry, it saves you from having to manually set the location information at a later time.

About

Scuba Diving Logbook Octologs

Log your scuba diving adventures with detailed stats, photos, and dive buddy connections. Explore your dive history on a global map and analyze performance with advanced analytics. Works offline and syncs automatically.

Highlights
  • Complete dive logging with GPS and depth profiles
  • Advanced dive analytics and performance tracking
  • Dive buddy network and in-app messaging
  • Visual dive mapping on an interactive world map
  • Offline functionality with automatic sync
  • GDPR-compliant cloud storage and backups
Features
Read full description

The ultimate scuba diving logbook and dive tracker for PADI, SSI, NAUI, and CMAS certified divers. Log every underwater adventure, analyze diving stats, and connect with your dive buddy community. Join thousands of divers who trust Octologs as their comprehensive diving logbook tracker. Transform how you log, chart, and share your scuba diving journey with powerful analytics and seamless dive buddy connections. COMPLETE DIVE LOGGING Record every detail including GPS coordinates, depth profiles, bottom time, SAC rate calculations, water temperature, visibility, and equipment used. Add photos and personal notes to preserve every underwater moment. Works offline at remote dive sites with automatic sync when connected. POWERFUL DIVE ANALYTICS Monitor your scuba diving performance with detailed stat tracking including SAC rate analysis, air consumption charts, and depth versus time profiles. Track progress with our achievement system and see your underwater evolution over time. DIVE BUDDY NETWORK Expand your diving community by scanning QR codes to instantly connect with dive buddies. Share dive logs, plan underwater adventures together, and stay connected through in-app messaging. Create stunning dive cards perfect for social sharing. VISUAL DIVE MAPPING Chart your global diving story on an interactive underwater world map. Every logged dive becomes a pin on your personal diving chart, making it easy to revisit favorite sites and plan new scuba adventures. SECURE AND RELIABLE Your diving logbook history is protected with GDPR-compliant cloud storage and automatic backups. Sign in with Apple or Google for secure access across all your devices. MULTILINGUAL DIVING SUPPORT Available in 17 languages including English, German, French, Spanish, Portuguese, Italian, Greek, Arabic, Hindi, Japanese, Korean, Russian, Turkish, Vietnamese, Chinese, Javanese, and Slovenian. PRO DIVING FEATURES Unlock advanced scuba diving analytics with detailed stat tracking and performance charts. Upload up to 20 photos per dive log versus 1 photo on the free plan. Connect with unlimited dive buddies per dive log and chat with your diving community through in-app messaging. Start with a 14-day free trial to experience everything Octologs Pro offers for scuba divers. Whether you're logging your first open water dive or your thousandth technical dive, this diving logbook tracker adapts to your underwater needs. Download now and revolutionize how you document your scuba diving world.

Screenshots

Diving Log4 screens
Scuba Diving Logbook Octologs4 screens

Verdict

The call

The clearest difference is rating: Scuba Diving Logbook Octologs at 4.8 against Diving Log's 4.0. Scuba Diving Logbook Octologs also leads on ads (none vs shown) and update cadence (every 5 weeks vs every 2 months). On price, ratings volume, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Diving Log sells 1 one-off in-app purchase and Scuba Diving Logbook Octologs sells 14 in-app purchases, starting at $1.00 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Scuba Diving Logbook Octologs holds the better App Store score, 4.8 against 4.0. Both are backed by a comparable volume of ratings — 2 and 4 respectively.

UpkeepUpdate frequency

Diving Log ships an update every 2 months, Scuba Diving Logbook Octologs every 5 weeks. The most recent releases landed on August 26, 2026 and June 3, 2026 respectively.

Scorecard3 real differences · 7 level
Diving Log versus Scuba Diving Logbook Octologs: the parameters behind the verdict, then further details
ParameterDiving LogScuba Diving Logbook Octologs
PriceFreeFree
Rating4.0 (2 ratings)4.8 (4 ratings) — better
Positive reviews54.5% of reviews
Number of ratings24 — better
Update frequencyEvery 2 monthsEvery 5 weeks — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.6 — better16.0
Further details — not scored
Size5 MB88 MB
Age rating4+4+
DeveloperTAIKI HIRATABENJAMIN MAHR

Customer experience

Diving Log

All ratings2 ratings
Positive50.0%
Neutral50.0%
Negative0.0%
Written reviews22 reviews
Positive54.5%
Neutral13.6%
Negative31.8%

Scuba Diving Logbook Octologs

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Diving Log

One-time1
  • Additional Function (Old Ad Hide)$4.99
14 purchases

Scuba Diving Logbook Octologs

Subscriptions13
  • Pro Subscription14 Days trial$1.001 Month
  • Pro Subscription$4.001 Month
  • Pro Subscription14 Days trial$4.901 Month
Show 10 more
  • Basic7 Days trial$4.991 Month
  • Pro14 Days trial$9.001 Month
  • Premium1 Month trial$9.991 Month
  • Pro Subscription14 Days trial$10.001 Year
  • Ultimate1 Month trial$14.991 Month
  • Pro Subscription14 Days trial$49.901 Year
  • Basic7 Days trial$49.991 Year
  • Pro14 Days trial$90.001 Year
  • Premium1 Month trial$99.991 Year
  • Ultimate1 Month trial$149.991 Year
One-time1
  • 100 logbook entries$10.00

Questions

Is Diving Log free?
Diving Log is free to download, with in-app purchases available.
Is Scuba Diving Logbook Octologs free?
Scuba Diving Logbook Octologs is free to download, with in-app purchases available.
Which has better reviews, Diving Log or Scuba Diving Logbook Octologs?
Scuba Diving Logbook Octologs is rated higher. Diving Log averages 4.0 out of 5 from 2 ratings, while Scuba Diving Logbook Octologs averages 4.8 from 4 ratings.
Do Diving Log or Scuba Diving Logbook Octologs have ads?
Diving Log shows ads; Scuba Diving Logbook Octologs does not.
Which is updated more often, Diving Log or Scuba Diving Logbook Octologs?
Diving Log ships an update every 2 months, and Scuba Diving Logbook Octologs every 5 weeks. Most recently, Diving Log was updated on August 26, 2026 and Scuba Diving Logbook Octologs on June 3, 2026.

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