Comparison

Diving logbook vs Reef Tagger

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

Head to head
About

Diving logbook

Easily log all your scuba diving details, from dive sites and conditions to equipment and observations. Track your dive history, including depth, time, and gas usage, with unlimited entries and an extensive dive site database. Connect with dive partners and record your underwater experiences.

Highlights
  • Unlimited dive entries
  • Detailed dive parameters (depth, time, gas)
  • Dive site mapping and database
  • Record dive conditions and equipment
  • Log notes and marine life sightings
  • Partner confirmation for dives
  • Dive statistics and total dive time
Features
Read full description

Our mobile logbook is the easiest way to keep a dive log! The number of entries in the logbook is unlimited. Keeping a personal dive log is recommended in all scuba diving associations. You can choose such parameters. ● Date and number of dive  The number of the first dive from which you decide to start logging  can always be changed in the settings of the mobile dive log. ● Place of immersion  You can choose a dive site from a map of dive sites, we have a large  base of dive sites and easy search on the map. Or add your own  thereby enlarging the general base of dive sites for other divers. The number of dive sites you visit is displayed in statistics on the main application screen. ● Dive conditions  Deep, on sunken objects, at night, during or in conditions  high mountains and others. ● Cylinders  Steel or aluminum, different volume of cylinders. amount  cylinders is not limited. ● Gases in cylinders  Air or nitrox of any percentage from 21% to 100% is suitable for  immersing in the technical mode. ● Amount of gas in cylinders  Remember the amount of gas at the beginning and end of the dive. ● Depth of dive  It is selected simply by scrolling the screen down. ● Time spent under water  All the time is summed up and displayed on the main screen as statistics  total time spent by you under water. By the end of the vacation, this  it's funny. )) ● Ballast  The amount of cargo that you use in salt or fresh water when immersed. It is very important to remember your ballast for comfortable dive especially after a long break. ● Water temperature  The temperature at the surface and at the depth is chosen to be simple  scrolling. ● Visibility under water  You will like this screen with animation. ● Costume  Dry, wet, short, or completely without it. ● Notes  Be sure to write down your impressions right after diving so memories will be the brightest. Indicate who or what you met under These data on the fish or marine. They are processed for the statistics of the halo of various marine species. ● Body partner  The most important part of your dive is the partner you are with  immersed. The application allows you to select the body partner from the list users of the application or friends of facebook. Choosing body partner you confirm the dive. It's like a stamp or a signature in your paper logbook. All these parameters are selected very easily in one two-touch and does not require a long input from the keyboard. After all, as we said this is the easiest mobile logbook! We are glad that now you are with us. We are waiting for feedback in the itunes store. Successful and interesting dives! Privacy Policy https://www.freeprivacypolicy.com/privacy/view/2514ee890daaa2fe15999a7010f55e73 Terms of Use https://www.websitepolicies.com/policies/view/MDfU1sJ6

About

Reef Tagger

Features
Read full description

Reef Tagger turns every dive into a discovery. Point your camera at any marine creature and our AI instantly identifies the species — fish, corals, rays, turtles, invertebrates, and more. Every tag builds your personal underwater journal and contributes to a growing record of ocean wildlife. IDENTIFY WITH AI Our two-pass identification engine analyses your photo and returns the species name, scientific name, confidence rating, and the distinguishing features used to make the call. When the image needs more detail, the app tells you exactly that. LOG EVERY DIVE Create dive logs that capture your sightings, locations, and photos in one place. Tag multiple species per dive and build a catalogue of everything you've ever encountered underwater. COLLECT SPECIES STAMPS Every new species you identify earns a beautifully rendered collector's stamp — a photorealistic 3D portrait unique to that creature. Build your collection one dive at a time. FIND DIVE SITES Search for dive sites shared by the community. See what species others have found there and add your own sites to the map. CONNECT WITH DIVERS Follow other divers, like and comment on their sightings, and see what's being tagged around the world in your social feed. Share publicly or keep sightings just for friends. CLIMB THE LEADERBOARD Compete on weekly, monthly, and all-time leaderboards. Every species you tag earns your place in the rankings. PRIVACY FIRST Control who sees your sightings, your profile, and your dive site locations. Share as much or as little as you choose. Reef Tagger is built for scuba divers, snorkellers, free divers, and marine enthusiasts at every level. Every sighting counts.

Screenshots

Diving logbook4 screens
Reef Tagger4 screens

Verdict

The call

The clearest difference is in-app purchases: Reef Tagger at none against Diving logbook's 3. Reef Tagger also leads on update cadence (every 5 days vs monthly) and device support (3 vs 1). On price and ads 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 logbook sells 3 in-app purchases, starting at $1.99 per month. Reef Tagger asks for nothing beyond the download.

UpkeepUpdate frequency

Diving logbook ships an update monthly, Reef Tagger every 5 days. The most recent releases landed on November 6, 2026 and November 10, 2026 respectively.

Scorecard4 real differences · 6 level
Diving logbook versus Reef Tagger: the parameters behind the verdict, then further details
ParameterDiving logbookReef Tagger
PriceFreeFree
Rating4.2 (96 ratings) — better—
Positive reviews76.1% of reviews—
Number of ratings96 — better—
Update frequencyMonthlyEvery 5 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.615.1 — better
Further details — not scored
Size71 MB75 MB
Age rating4+17+
DeveloperDenys DykushaCool Coral Labs Limited

In-app purchases

3 purchases

Diving logbook

Subscriptions2
  • support DiveNumber every month$1.991 Month
  • support DiveNumber every year$1.991 Year
One-time1
  • support Dive Number one time$4.99
None

Reef Tagger

No in-app purchases

Questions

Is Diving logbook free?
Diving logbook is free to download, with in-app purchases available.
Is Reef Tagger free?
Reef Tagger is free to download, with no in-app purchases.
Do Diving logbook or Reef Tagger have ads?
Neither Diving logbook nor Reef Tagger shows ads.
Which is updated more often, Diving logbook or Reef Tagger?
Diving logbook ships an update monthly, and Reef Tagger every 5 days. Most recently, Diving logbook was updated on November 6, 2026 and Reef Tagger on November 10, 2026.

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