Comparison

Poseidon Reef vs Log4Fit

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

Head to head
About

Poseidon Reef

This app helps divers log, plan, and analyze their dives. It offers detailed overviews, customizable dive logs, and advanced planning for various dive types. Connect your dive computer to manage data and firmware.

Highlights
  • Comprehensive dive logging
  • Detailed dive planning
  • Support for OC and CCR dives
  • Unlimited tank support
  • Decompression model selection
  • Dive computer connectivity
  • Cloud backup and firmware updates
Read full description

Dive into the deep with Reef, the ultimate tool for every diver regardless of experience, level, or dive style. Designed to enhance and prolong your passion for diving, Reef seamlessly extends your diving experience, both before and after the actual dive. With Reef in your pocket, you're always ready to explore. Dive Log > Get a comprehensive and detailed overview of all your dives. > Easily sort and filter to find specific dives. > Import and export dives effortlessly. > Personalize dives with custom details, photos, location and more. > Engage with your dives using the interactive chart functionality. > Visualize intricate data like tank pressures, pO2, loop temperature, etc.* > Choose the data points you want to see > Zoom in on portions of the dive you are interested in Planner > Keep track of all your upcoming dives with a comprehensive overview. > Sort, filter, and organize your dive plans. > Plan for a single dive or a series of dives. > Suitable for OC (Open Circuit) and CCR (Closed Circuit Rebreather) dives. > Supports an unlimited number of tanks. > Choose between DCAP and Buhlmann decompression models. > Bailout scenario > Configure gas content Device Manager > Connect your Poseidon M28 dive computer through WiFi > View details about connected submodules. > Download, store, and back up your dives in the cloud. > Access vital service information > Monitor total dive time > Stay updated with firmware information. *Only available with Poseidon M28 dive computer

About

Log4Fit

This app helps you track your gym workouts efficiently. Log sets, reps, and weight with ease to monitor your progress over time. It's designed for straightforward logging during real gym sessions.

Highlights
  • Fast workout logging
  • Track sets, reps, and weight
  • Review workout history
  • Monitor strength progress
  • Add custom exercises
  • Designed for gym sessions
Read full description

Log4Fit is a simple workout log built for gym sessions. Track your workouts as you go, log sets in seconds, and see how your training changes over time. Log4Fit keeps your workout history in one place so you can stop guessing what you lifted last time and stay focused on progress. Why Log4Fit: · Fast workout logging with minimal friction · Track sets, reps, and weight · Review workout history anytime · Follow your strength progress over time · Add custom exercises for your routine · Built for real gym sessions, not complicated planning Whether you lift with a fixed routine or adjust on the fly, Log4Fit helps you record each session and keep moving forward.

Screenshots

Poseidon Reef4 screens
Log4Fit4 screens

Verdict

The call

The clearest difference is review sentiment: Log4Fit at 100% against Poseidon Reef's 0%. Log4Fit also leads on rating (5.0 vs 3.0) and ads (none vs shown). Poseidon Reef's advantage is update cadence (every 5 weeks vs every 27 months) and device support (4 vs 2). On price, ratings volume and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Log4Fit holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 0% of Poseidon Reef's written reviews are positive against 100% of Log4Fit's.

UpkeepUpdate frequency

Poseidon Reef ships an update every 5 weeks, Log4Fit every 27 months. The most recent releases landed on October 16, 2026 and October 10, 2026 respectively.

Scorecard7 real differences · 3 level
Poseidon Reef versus Log4Fit: the parameters behind the verdict, then further details
ParameterPoseidon ReefLog4Fit
PriceFreeFree
Rating3.0 (2 ratings)5.0 (1 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings2 — better1
Update frequencyEvery 5 weeks — betterEvery 27 months
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPod
Requires iOS12.1 — better15.1
Further details — not scored
Size58 MB21 MB
Age rating4+12+
DeveloperPoseidon Diving Systems ABDenis Zaytsev

Customer experience

Poseidon Reef

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Log4Fit

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Poseidon Reef

No in-app purchases

None

Log4Fit

No in-app purchases

Questions

Is Poseidon Reef free?
Poseidon Reef is free to download, with no in-app purchases.
Is Log4Fit free?
Log4Fit is free to download, with no in-app purchases.
Which has better reviews, Poseidon Reef or Log4Fit?
Log4Fit is rated higher. Poseidon Reef averages 3.0 out of 5 from 2 ratings, while Log4Fit averages 5.0 from 1 ratings.
Do Poseidon Reef or Log4Fit have ads?
Poseidon Reef shows ads; Log4Fit does not.
Which is updated more often, Poseidon Reef or Log4Fit?
Poseidon Reef ships an update every 5 weeks, and Log4Fit every 27 months. Most recently, Poseidon Reef was updated on October 16, 2026 and Log4Fit on October 10, 2026.

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