Comparison

Buoyancy Calc vs Kraken NextGen

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

Head to head
About

Buoyancy Calc

Calculate the optimal weight for scuba diving based on environmental factors. Input your weight, water type, tank, and exposure suit to get a suggested weight for neutral buoyancy.

Highlights
  • Calculate suggested diving weight
  • Adjust for water type
  • Adjust for tank type
  • Adjust for exposure suit
  • Supports pounds and kilograms
Features
Read full description

Quickly find out the suggested weight you should add when scuba diving in different environments. Based on PADI's Peak Performance Buoyancy basic weighting guideline*. Enter your weight in pounds or kilograms, and additionally set the type of water, tank, and exposure suit to dial in a suggested amount of weight to help keep you neutrally buoyant. *Note that this app and the developer are not officially a representative of PADI. This app will give the user a good estimate of the weight needed for the environment selected, but there are always adjustments needed to achieve peak performance, based on gender, physique, exposure suit age, accessories, etc.

About

Kraken NextGen

Enhance your underwater photography and track dives with AI-powered image improvements and detailed dive logging. This app works with smart housings to provide real-time data and safety timers for a superior diving experience.

Highlights
  • AI Image Enhancement
  • AI Color Correction
  • AI Image Denoise
  • Comprehensive Dive Logs
  • Real-Time Dive Tracking
  • Cool-Down Timers
  • Decompression Calculations
Read full description

Kraken NextGen is your all-in-one app for underwater photography and dive tracking, designed to pair seamlessly with Kraken Sports Smart Housing. Rebuilt from the ground up, Kraken NextGen takes your underwater experience to the next level with cutting-edge features, including: • AI Image Enhancement: Let our AI improve photo quality with intelligent adjustments. • AI Color Correction: Achieve accurate, vibrant colors in underwater shots. • AI Image Denoise: Reduce noise and maintain clarity for stunning visuals. • Comprehensive Dive Logs: Log and review all dive data, including depth and temperature. • Real-Time Dive Tracking: Keep track of critical stats during your dive. • Cool-Down Timers: Utilize fly and dive cool-down timers for safety. • Decompression Calculations: Stay informed with on-screen decompression data for each dive. • Unlock the full potential of your Kraken Smart Housing and redefine your underwater adventure with KrakenNextGen. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://krakensports.ca/privacy/

Screenshots

Buoyancy Calc1 screens
Kraken NextGen4 screens

Verdict

The call

The clearest difference is rating: Buoyancy Calc at 3.1 against Kraken NextGen's 2.5. Buoyancy Calc also leads on in-app purchases (none vs 4) and ratings volume (25 vs 6). Kraken NextGen's advantage is review sentiment (67% vs 40%). On price, update cadence 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. Kraken NextGen sells 4 in-app purchases, starting at $4.99 per 7 days. Buoyancy Calc asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Buoyancy Calc holds the better App Store score, 3.1 against 2.5. Both are backed by a comparable volume of ratings — 25 and 6 respectively. Written reviews complicate that: 40% of Buoyancy Calc's written reviews are positive against 67% of Kraken NextGen's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Buoyancy Calc ships an update every 3 months, Kraken NextGen every 2 months. Both last shipped on October 22, 2026.

Scorecard7 real differences · 3 level
Buoyancy Calc versus Kraken NextGen: the parameters behind the verdict, then further details
ParameterBuoyancy CalcKraken NextGen
PriceFreeFree
Rating3.1 (25 ratings) — better2.5 (6 ratings)
Positive reviews40.0% of reviews66.7% of reviews — better
Number of ratings25 — better6
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.6 — better17.2
Further details — not scored
Size1 MB322 MB
Age rating4+4+
DeveloperEric HamiterDATS Sports

Customer experience

Buoyancy Calc

All ratings25 ratings
Positive44.0%
Neutral12.0%
Negative44.0%
Written reviews25 reviews
Positive40.0%
Neutral12.0%
Negative48.0%

Kraken NextGen

All ratings5 ratings
Positive40.0%
Neutral20.0%
Negative40.0%
Written reviews6 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

None

Buoyancy Calc

No in-app purchases

4 purchases

Kraken NextGen

Subscriptions4
  • Kraken Pro Weekly7 Days trial$4.997 Days
  • Kraken Pro Monthly7 Days trial$9.991 Month
  • Kraken Pro Half-Yearly7 Days trial$49.996 Months
Show 1 more
  • Kraken Pro Yearly7 Days trial$79.991 Year

Questions

Is Buoyancy Calc free?
Buoyancy Calc is free to download, with no in-app purchases.
Is Kraken NextGen free?
Kraken NextGen is free to download, with in-app purchases available.
Which has better reviews, Buoyancy Calc or Kraken NextGen?
Buoyancy Calc is rated higher. Buoyancy Calc averages 3.1 out of 5 from 25 ratings, while Kraken NextGen averages 2.5 from 6 ratings.
Do Buoyancy Calc or Kraken NextGen have ads?
Neither Buoyancy Calc nor Kraken NextGen shows ads.
Which is updated more often, Buoyancy Calc or Kraken NextGen?
Buoyancy Calc ships an update every 3 months, and Kraken NextGen every 2 months. Most recently, Buoyancy Calc was updated on October 22, 2026 and Kraken NextGen on October 22, 2026.

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