# TruAirspeed vs SwitcheOn

The clearest difference is update cadence: SwitcheOn at every 2 months against TruAirspeed's every 24 months. SwitcheOn also leads on rating (4.5 vs 4.1) and review sentiment (80% vs 71%). TruAirspeed's advantage is monetization model (free vs ad-supported). On price, ads, in-app purchases and device support there is nothing between them.

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

SwitcheOn holds the better App Store score, 4.5 against 4.1. Both are backed by a comparable volume of ratings — 8 and 30 respectively. Written reviews point the same way: 71% of TruAirspeed's written reviews are positive against 80% of SwitcheOn's.

TruAirspeed ships an update every 24 months, SwitcheOn every 2 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | TruAirspeed | SwitcheOn |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (8 ratings)](https://appshunter.io/ios/app/truairspeed/id855269892/reviews) | **[4.5 (30 ratings)](https://appshunter.io/ios/app/switcheon/id1505082694/reviews)** |
| Number of ratings | 8 | **30** |
| Positive reviews | 71.4% of reviews | **80.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 2 months** |
| Monetization | **Free** | Ad-supported |
| Size | 8 MB | 93 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [James Petty](https://appshunter.io/developer/603661046) | [Malmoset, LLC](https://appshunter.io/developer/1505082693) |

## 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


### SwitcheOn

[App page](https://appshunter.io/ios/app/switcheon/id1505082694)

Control your power outlets and thermostat remotely. Features include multi-channel power control with temperature sensing and automations. It also offers advanced thermostat functionality for various HVAC systems.

**Highlights:** Remote power control (2 or 4 channels), Temperature sensor and OLED display, Time and temperature automations, Thermostat for HVAC systems, Multi-stage fan and heat source control, Easy programming for schedules

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is TruAirspeed free?

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

### Is SwitcheOn free?

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

### Which has better reviews, TruAirspeed or SwitcheOn?

SwitcheOn is rated higher. TruAirspeed averages 4.1 out of 5 from 8 ratings, while SwitcheOn averages 4.5 from 30 ratings.

### Do TruAirspeed or SwitcheOn have ads?

Neither TruAirspeed nor SwitcheOn shows ads.

### Which is updated more often, TruAirspeed or SwitcheOn?

TruAirspeed ships an update every 24 months, and SwitcheOn every 2 months. Most recently, TruAirspeed was updated on November 1, 2026 and SwitcheOn on November 3, 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.*