Comparison

Surface Air Consumption vs WingCalc

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

Head to head
About

Surface Air Consumption

This utility calculates surface air consumption (SAC) rates and air needs at depth using only user-provided dive profile data. It does not compute nitrogen absorption or decompression limits. Always prioritize safety and consult official decompression tables.

Highlights
  • Calculates SAC Rate
  • Estimates air requirements at depth
  • User input based calculations
  • Dive profile analysis
  • Focuses solely on air consumption
Features
Read full description

This software calculates Surface Air Consumption (SAC Rate) and air requirements at depth based on user input data ONLY. This software DOES NOT calculate nitrogen absorption and/or decompression limits. Please see US Navy decompression tables for that information. This software only calculates how much air is required based on user entered data and dive profile. Know your limits and dive within them. Always error on the side of safety. Leridian Dynamics, Inc. assumes no liability for the use and/or misuse of this software.

About

WingCalc

This aviation calculator provides essential flight calculations for pilots, from preflight planning to in-flight decisions. It offers instant results for density altitude, runway wind components, and navigation planning, with a dashboard for all flight parameters.

Highlights
  • Density altitude and pressure altitude calculations
  • Runway wind component determination
  • Navigation planning with wind correction
  • Flight parameters dashboard
  • Live GPS with real-time coordinates
  • Automatic magnetic variation detection
Features
Read full description

WingCalc - Aviation Calculator Essential flight calculations for pilots, right in your pocket. WingCalc is the aviation calculator companion designed for student pilots, private pilots, and flight enthusiasts. Get instant results for the calculations you need most - from preflight planning to in-flight decisions. DENSITY ALTITUDE Calculate density altitude and pressure altitude with real-time performance warnings. Know when conditions will affect your aircraft's climb rate, takeoff roll, and overall performance. RUNWAY WIND Instantly determine headwind and crosswind components for any runway. Enter wind direction, speed, and runway heading to get the numbers you need for safe takeoffs and landings. NAVIGATION Plan your cross-country flights with wind correction angle, true heading, magnetic heading, compass heading, and ground speed calculations. Optional compass deviation input for precise navigation. DASHBOARD View all your flight parameters at a glance. WCA, headings, ground speed, wind components, and altitude calculations - all in one place. PRO FEATURES - Live GPS: Real-time coordinates, altitude, ground speed, and heading - Automatic magnetic variation detection based on your location - Ad-free experience Perfect for flight training, cross-country planning, or quick calculations on the ramp. Simple, fast, and reliable.

Screenshots

Surface Air Consumption4 screens
WingCalc4 screens

Verdict

The call

The clearest difference is review sentiment: Surface Air Consumption at 100% against WingCalc's 33%. Surface Air Consumption also leads on rating (5.0 vs 2.0) and in-app purchases (none vs 1). On price, ratings volume, 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. WingCalc sells 1 one-off in-app purchase. Surface Air Consumption asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Surface Air Consumption holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 100% of Surface Air Consumption's written reviews are positive against 33% of WingCalc's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly weekly. Both last shipped on June 1, 2026.

Scorecard5 real differences · 5 level
Surface Air Consumption versus WingCalc: the parameters behind the verdict, then further details
ParameterSurface Air ConsumptionWingCalc
PriceFreeFree
Rating5.0 (2 ratings) — better2.0 (1 ratings)
Positive reviews100.0% of reviews — better33.3% of reviews
Number of ratings2 — better1
Update frequencyWeeklyWeekly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.6 — better18.6
Further details — not scored
Size1 MB7 MB
Age rating4+4+
DeveloperLeridian Dynamics, Inc.App4Life Sweden AB

Customer experience

Surface Air Consumption

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

WingCalc

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

In-app purchases

None

Surface Air Consumption

No in-app purchases

1 purchases

WingCalc

One-time1
  • WingCalc Pro$0.99

Questions

Is Surface Air Consumption free?
Surface Air Consumption is free to download, with no in-app purchases.
Is WingCalc free?
WingCalc is free to download, with in-app purchases available.
Which has better reviews, Surface Air Consumption or WingCalc?
Surface Air Consumption is rated higher. Surface Air Consumption averages 5.0 out of 5 from 2 ratings, while WingCalc averages 2.0 from 1 ratings.
Do Surface Air Consumption or WingCalc have ads?
Neither Surface Air Consumption nor WingCalc shows ads.
Which is updated more often, Surface Air Consumption or WingCalc?
Surface Air Consumption ships an update weekly, and WingCalc weekly. Most recently, Surface Air Consumption was updated on June 1, 2026 and WingCalc on June 1, 2026.

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