Comparison

Buoyancy Calc vs Dive Planner Calculator

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

Dive Planner Calculator

This app simplifies recreational dive planning by calculating essential dive parameters for up to three consecutive dives. It provides automatic calculations for residual nitrogen, safe ascent times, and includes a visual dive graph for easy review. Designed for both new and experienced divers, it ensures adherence to safety standards for stress-free underwater exploration.

Highlights
  • Plan up to three consecutive dives
  • Automatic calculation of dive parameters
  • Surface interval tracking
  • Visual dive graph
  • Adherence to safety guidelines
  • On-the-go convenience
Features
Read full description

Dive deeper with confidence! Our all-in-one dive planner helps you schedule up to three consecutive recreational dives while adhering to internationally recognized safety standards—no extra gear or complicated tables needed. Quickly input depth, bottom time, and surface interval, and let the app do the rest. It calculates everything from your residual nitrogen levels to safe ascent times, so you can focus on the thrill of underwater exploration. But that’s not all: the built-in dive graph gives you a clear picture of each dive profile at a glance. Use it to review important parameters, ensure your safety stops are in check, and share your plan with buddies for added peace of mind. Whether you’re exploring colorful reefs or searching for hidden wrecks, our app streamlines your dive prep so you can spend less time planning and more time submerged in aquatic adventures. Key Features: - Three consecutive dives: Plan a single day of diving or multiple hops in a breeze. - Automatic calculations: Enter depth and time, and instantly get your essential numbers for each stage—no guesswork. - Surface interval tracking: Precisely manage how much downtime you need between dives to optimize your underwater exploration. - Clear visual graph: See your dive profiles laid out in an easy-to-read chart, simplifying complex depth/time data into an intuitive visual. - Safe & flexible: Follows widely acknowledged recreational diving guidelines to keep you within safe no-decompression limits. - On-the-go convenience: All your dive data in one place, on your device, ready whenever you need it—even on the boat. Our dive planner is designed for simplicity and accuracy, ensuring you stay within recommended limits for safe, stress-free diving. From new divers still mastering safety stops to seasoned pros mapping multiple drop points, it’s the perfect pocket companion. Download now, streamline your planning, and enjoy more bubbles, less hassle! Dive safe, dive smart, and make every underwater journey unforgettable.

Screenshots

Buoyancy Calc1 screens
Dive Planner Calculator3 screens

Verdict

The call

The clearest difference is price: Buoyancy Calc at Free against Dive Planner Calculator's $8.99. Buoyancy Calc also leads on update cadence (every 3 months vs every 7 months) and ratings volume (25 vs 3). Dive Planner Calculator's advantage is review sentiment (67% vs 40%) and rating (3.3 vs 3.1). On ads, in-app purchases and device support 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

Buoyancy Calc is free to download; Dive Planner Calculator costs $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Dive Planner Calculator holds the better App Store score, 3.3 against 3.1. That said, the two scores are not equally well evidenced: Buoyancy Calc has 25 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 40% of Buoyancy Calc's written reviews are positive against 67% of Dive Planner Calculator's.

UpkeepUpdate frequency

Buoyancy Calc ships an update every 3 months, Dive Planner Calculator every 7 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard7 real differences · 3 level
Buoyancy Calc versus Dive Planner Calculator: the parameters behind the verdict, then further details
ParameterBuoyancy CalcDive Planner Calculator
PriceFree — better$8.99
Rating3.1 (25 ratings)3.3 (3 ratings) — better
Positive reviews40.0% of reviews66.7% of reviews — better
Number of ratings25 — better3
Update frequencyEvery 3 months — betterEvery 7 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.611.0 — better
Further details — not scored
Size1 MB10 MB
Age rating4+4+
DeveloperEric HamiterSAGA Virtual Tecnologia Ltda

Customer experience

Buoyancy Calc

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

Dive Planner Calculator

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

None

Buoyancy Calc

No in-app purchases

None

Dive Planner Calculator

No in-app purchases

Questions

Is Buoyancy Calc free?
Buoyancy Calc is free to download, with no in-app purchases.
Is Dive Planner Calculator free?
Dive Planner Calculator costs $8.99, with no in-app purchases.
Which has better reviews, Buoyancy Calc or Dive Planner Calculator?
Dive Planner Calculator is rated higher. Buoyancy Calc averages 3.1 out of 5 from 25 ratings, while Dive Planner Calculator averages 3.3 from 3 ratings.
Do Buoyancy Calc or Dive Planner Calculator have ads?
Neither Buoyancy Calc nor Dive Planner Calculator shows ads.
Which is updated more often, Buoyancy Calc or Dive Planner Calculator?
Buoyancy Calc ships an update every 3 months, and Dive Planner Calculator every 7 months. Most recently, Buoyancy Calc was updated on November 3, 2026 and Dive Planner Calculator on October 30, 2026.

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