# QAOSH AviationSMS vs PD Altitude

The clearest difference is in-app purchases: QAOSH AviationSMS at none against PD Altitude's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. PD Altitude sells 1 one-off in-app purchase. QAOSH AviationSMS asks for nothing beyond the download.

QAOSH AviationSMS ships an update every 3 weeks, PD Altitude every 4 weeks. Both last shipped on October 27, 2026.

## The numbers

| Metric | QAOSH AviationSMS | PD Altitude |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 weeks |
| Size | 38 MB | 22 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [QAOSH AviationSMS](https://appshunter.io/developer/1572222023) | [PITCHLINKS LIMITED](https://appshunter.io/developer/1593816127) |

## What reviewers say

### QAOSH AviationSMS

[App page](https://appshunter.io/ios/app/qaosh-aviationsms/id1572222021)

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

**In-app purchases:** none


### PD Altitude

[App page](https://appshunter.io/ios/app/pd-altitude/id1664694408)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| My Location | $1.99 | one-time |


## Frequently asked questions

### Is QAOSH AviationSMS free?

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

### Is PD Altitude free?

PD Altitude is free to download, with in-app purchases available.

### Do QAOSH AviationSMS or PD Altitude have ads?

Neither QAOSH AviationSMS nor PD Altitude shows ads.

### Which is updated more often, QAOSH AviationSMS or PD Altitude?

QAOSH AviationSMS ships an update every 3 weeks, and PD Altitude every 4 weeks. Most recently, QAOSH AviationSMS was updated on October 27, 2026 and PD Altitude on October 27, 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.*