TruAirspeed vs EZWrite 6
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TruAirspeed
This utility calculates true airspeed, pressure altitude, density altitude, and Mach number. It accounts for compressibility effects and offers unit choices and keypad styles. Users can also input a correction factor for their airspeed indicator.
- True airspeed calculation
- Pressure and density altitude calculation
- Mach number calculation
- Compressibility effects accounted for
- Choice of input/result units
- Calculator or telephone keypad options
- Airspeed indicator correction factor
Read full descriptionHide full description
TruAirspeed is a True Airspeed Calculator for the iPhone and iPad. It's a bit different from other true airspeed calculators, in which the pressure altitude is an input. This requires resetting the altimeter to the standard sea level pressure of 29.92"Hg to read the pressure altitude. With TruAirspeed, you input the indicated altitude and the Kollsman window's pressure setting — the app then calculates the pressure altitude, density altitude, true airspeed and mach number for you. The calculations involved take full account of compressibility effects, but not shock waves, so it's limited to subsonic, non-transonic flight only. You have a choice of units for inputs and results, and you may choose either a calculator-style keypad (top row: 7-8-9) or a telephone-style keypad (top row: 1-2-3). You may also set a correction factor for your bird's airspeed indicator/pitot-static system, if you know it (mine is 0.95).
EZWrite 6
This digital whiteboard app offers an expandable canvas with multimedia and activity tools for teaching and collaboration. Remote participants can join and interact with the board via cloud synchronization.
- Expandable canvas
- Multimedia tools
- Activity tools
- Cloud whiteboard
- Remote collaboration
Read full descriptionHide full description
EZWrite 6 is a powerful digital whiteboard designed for teaching and collaboration. Users can do way more than just write and draw. Its expandable canvas and rich assortment of multimedia and activity tools make it the ideal medium for classes and meetings. Activating the cloud whiteboard even expands your sessions, allowing remote participants to join in and get their hands on the board.
Screenshots
Verdict
The clearest difference is review sentiment: TruAirspeed at 71% against EZWrite 6's 0%. TruAirspeed also leads on rating (4.1 vs 1.3) and device support (3 vs 1). EZWrite 6's advantage is update cadence (every 3 months vs every 24 months). On price, ratings volume, ads 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
TruAirspeed holds the better App Store score, 4.1 against 1.3. Both are backed by a comparable volume of ratings — 8 and 3 respectively. Written reviews point the same way: 71% of TruAirspeed's written reviews are positive against 0% of EZWrite 6's.
TruAirspeed ships an update every 24 months, EZWrite 6 every 3 months. The most recent releases landed on June 2, 2026 and September 24, 2026 respectively.
| Parameter | TruAirspeed | EZWrite 6 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (8 ratings) — better | 1.3 (3 ratings) |
| Positive reviews | 71.4% of reviews — better | 0.0% of reviews |
| Number of ratings | 8 — better | 3 |
| Update frequency | Every 24 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 15.6 | 15.4 — better |
| Further details — not scored | ||
| Size | 8 MB | 283 MB |
| Age rating | 4+ | 4+ |
| Developer | James Petty | BenQ Corporation |
Customer experience
TruAirspeed
EZWrite 6
In-app purchases
TruAirspeed
No in-app purchases
EZWrite 6
No in-app purchases
