Comparison

Wind Triangle vs Aviation Calculator AvCalc

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

Head to head
About

Wind Triangle

Features
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Calculate heading and ground speed for flight planning, wind speed and direction for in-flight wind assessment, or any other parameter in the aviation wind triangle! Whether you need an easy wind solver for flight planning or you're a student pilot learning the ins and outs of the E6B wind side, this app makes solving the wind triangle intuitive and easy. With the in-flight wind assessment (GPS-enabled devices only), the app uses GPS and heading to automatically calculate the current wind at your altitude by just inputting your TAS or CAS with conditions. This brings integrated flight deck capabilities to your aircraft with a readout of your current head/tail- and crosswind components. Inputs supported: heading, true airspeed, ground speed, track, wind direction, wind speed. Input any four parameters and the app calculates the rest. Calibrated airspeed (CAS) may be set instead of TAS. Inputting CAS prompts you to set barometric setting, indicated altitude, and outside air temperature (OAT). From this, TAS, pressure altitude, and density altitude are calculated. Try GPS mode (supported devices only) on the ground by enabling the GPS Demo Mode option.

About

Aviation Calculator AvCalc

This app provides pilots with essential aviation calculations for flight planning and cockpit use. It offers quick answers for time, speed, distance, fuel, performance, weather decoding, and more, all in a compact interface.

Highlights
  • Time, speed, and distance calculations
  • Wind correction and runway components
  • Fuel planning and endurance estimates
  • Performance calculations (altitude, Mach, climb)
  • METAR/TAF weather decoding
  • Weight and balance checks
  • Unit conversions
Features
Read full description

AvCalc is a focused aviation calculator for pilots, student pilots, instructors, and flight planners who need quick cockpit-style answers without digging through menus. Plan flights, check wind, estimate performance, decode weather, and keep common aviation calculations in one compact app. Calculate: • Time, speed, and distance • Wind correction, heading, and groundspeed • Crosswind and headwind runway components • Fuel required, endurance, range, and burn rate • Pressure altitude, density altitude, ISA deviation, and TAS • Mach, climb, descent, glide, and top of descent values • Cloud base estimates • Aviation unit conversions • UTC time, timers, and flight time math • Navigation coordinates and magnetic variation helpers • Map scale distances • Holding entries and wind correction • Weight and balance with CG and envelope checks • METAR and TAF weather report decoding AvCalc is built for fast, repeatable use: enter the values you know, get clean numeric outputs, copy results, and save recent calculations for later reference. Whether you are preparing a lesson, reviewing a route, checking runway winds, or doing quick performance math before a flight, AvCalc keeps the core aviation calculations close at hand. Always verify calculations against current aircraft documentation, approved flight manuals, official weather sources, and operational procedures. AvCalc is a planning and reference tool and is not a substitute for required flight planning, navigation equipment, or pilot judgment.

Screenshots

Wind Triangle2 screens
Aviation Calculator AvCalc4 screens

Verdict

The call

The clearest difference is price: Aviation Calculator AvCalc at Free against Wind Triangle's $2.99. Wind Triangle's advantage is in-app purchases (none vs 1). On update cadence, ads, device support and iOS requirement 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

Aviation Calculator AvCalc is free to download; Wind Triangle costs $2.99 up front. Aviation Calculator AvCalc sells 1 one-off in-app purchase. Wind Triangle asks for nothing beyond the download.

UpkeepUpdate frequency

Wind Triangle ships an update every 2 months, Aviation Calculator AvCalc every 3 months. The most recent releases landed on November 9, 2026 and November 5, 2026 respectively.

Scorecard2 real differences · 8 level
Wind Triangle versus Aviation Calculator AvCalc: the parameters behind the verdict, then further details
ParameterWind TriangleAviation Calculator AvCalc
Price$2.99Free — better
Rating—5.0 (5 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—5 — better
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS17.6 — better18.0
Further details — not scored
Size1 MB20 MB
Age rating4+4+
DeveloperSmall Aviation ToolsFifteen Jugglers Software UG

In-app purchases

None

Wind Triangle

No in-app purchases

1 purchases

Aviation Calculator AvCalc

One-time1
  • AvCalc Pro$19.99

Questions

Is Wind Triangle free?
Wind Triangle costs $2.99, with no in-app purchases.
Is Aviation Calculator AvCalc free?
Aviation Calculator AvCalc is free to download, with in-app purchases available.
Do Wind Triangle or Aviation Calculator AvCalc have ads?
Neither Wind Triangle nor Aviation Calculator AvCalc shows ads.
Which is updated more often, Wind Triangle or Aviation Calculator AvCalc?
Wind Triangle ships an update every 2 months, and Aviation Calculator AvCalc every 3 months. Most recently, Wind Triangle was updated on November 9, 2026 and Aviation Calculator AvCalc on November 5, 2026.

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