Diving logbook-Dive Number
Diving Logbook-Dive Number is a mobile logbook app for scuba divers to track dive conditions, gas usage, and marine encounters on iOS.
The App DNA
What makes this app unique?
Users hire this app to replace cumbersome paper logs with a rapid, digital-entry system that confirms dives via social partner verification.
For Scuba divers seeking a digital alternative to paper logbooks for tracking technical dive data and marine life encounters.
What does it look like?
Key features
Global map-based search and user-contributed dive site directory.
Digital dive confirmation via partner selection from app user list or Facebook friends.
Aggregated tracking of total underwater time and number of sites visited.
How much does it cost?
The app operates on a free model with no visible IAP or subscription gates, relying on user-contributed data to maintain the site database.
Velocity
Maintenance developmentperformanceShow more...
The app ships approximately 0.09 releases per week, placing it firmly in the maintenance tier. Development activity is limited to minor stability patches, with the latest release focusing exclusively on resolving a critical error for users with large record sets. There is no evidence of new feature development or live operations. The current cadence suggests a focus on long-term stability rather than active growth.
Who built it?
User Sentiment
What do users think recently?
How are ratings & reviews evolving?
Not enough recent reviews to extract reliable themes yet.
Read the full review analysisCompetition
Competitive landscape for Diving logbook-Dive Number
How's the Sports market?
The app maintains a 4.22 rating across 95 reviews, reflecting a stable but niche user base. The lack of recent feature updates relative to the 2015 release date signals a maintenance-only posture.
Read the market outlookThe rivals identified
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Access the full report for freeThe Analyst's Read
Key takeaways for Diving logbook-Dive Number
Where is it heading?
The scuba logbook market is shifting toward automated data ingestion from dive computers, leaving manual-entry apps like this one exposed. The current maintenance posture will likely result in a slow decline in active users as technical divers prioritize platforms that reduce data-entry friction.
- Recent updates focused on stability, no feature expansion, which limits the app's ability to compete with modern automated logging solutions.
- The 77-day update gap indicates a maintenance-mode posture, which risks losing market share to competitors with faster development cycles.
The SWOT
- Partner verification via social integration creates a viral loop for new user acquisition
- Map-based dive site database functions as a B2B distribution barrier through user-contributed content
- Integration with popular dive computer hardware would unlock a high-retention data-sync workflow
- Monetization of the dive site database via partnerships with dive resorts could provide a revenue stream
Next best moves
Audit wearable-sync API feasibility because manual entry is the top churn risk → increase retention
The counter-intuitive read
The app's lack of monetization is its primary growth barrier…
Read the full takeSince the last report: The analysis shifted from a focus on monetization to a focus on technical retention, specifically identifying the lack of wearable-sync as the primary competitive disadvantage.
Bottom line
Diving Logbook-Dive Number retains users through a simple, free-to-use interface, but its lack of active development and wearable integration creates a churn risk, so the PM should prioritize a hardware-sync roadmap to defend the user base.
Unlock 2 critical frictions, 2 market threats and the analyst’s take.
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- [1] App Store
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