# TruAirspeed vs SF50 TOLD

The clearest difference is update cadence: SF50 TOLD at fortnightly against TruAirspeed's every 24 months. TruAirspeed's advantage is review sentiment (71% vs 50%) and iOS requirement (15.6 vs 26.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.1 for TruAirspeed against 4.0 for SF50 TOLD. Both are backed by a comparable volume of ratings — 8 and 4 respectively. Written reviews are what separate them: 71% of TruAirspeed's written reviews are positive against 50% of SF50 TOLD's.

TruAirspeed ships an update every 24 months, SF50 TOLD fortnightly. The most recent releases landed on June 2, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | TruAirspeed | SF50 TOLD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (8 ratings)](https://appshunter.io/ios/app/truairspeed/id855269892/reviews)** | [4.0 (4 ratings)](https://appshunter.io/ios/app/sf50-told/id1552835232/reviews) |
| Number of ratings | **8** | 4 |
| Positive reviews | **71.4% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 24 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 8 MB | 25 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [James Petty](https://appshunter.io/developer/603661046) | [Timothy Morgan](https://appshunter.io/developer/788467418) |

## What reviewers say

### TruAirspeed

[App page](https://appshunter.io/ios/app/truairspeed/id855269892)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


### SF50 TOLD

[App page](https://appshunter.io/ios/app/sf50-told/id1552835232)

This app assists Cirrus SF50 Vision pilots with performance calculations for takeoff and landing. It provides runway requirements based on entered weights, supporting various weather conditions and custom safety factors.

**Highlights:** Performance calculations for takeoff and landing, Input for weights and runway requirements, Automatic and manual weather entry, Custom safety factors, Support for non-normal configurations, Runway contamination data

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is TruAirspeed free?

TruAirspeed is free to download, with no in-app purchases.

### Is SF50 TOLD free?

SF50 TOLD is free to download, with no in-app purchases.

### Which has better reviews, TruAirspeed or SF50 TOLD?

TruAirspeed is rated higher. TruAirspeed averages 4.1 out of 5 from 8 ratings, while SF50 TOLD averages 4.0 from 4 ratings.

### Do TruAirspeed or SF50 TOLD have ads?

Neither TruAirspeed nor SF50 TOLD shows ads.

### Which is updated more often, TruAirspeed or SF50 TOLD?

TruAirspeed ships an update every 24 months, and SF50 TOLD fortnightly. Most recently, TruAirspeed was updated on June 2, 2026 and SF50 TOLD on September 16, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*