# Featherweight UI vs ChangeClubs

The clearest difference is update cadence: ChangeClubs at every 5 days against Featherweight UI's every 3 weeks. ChangeClubs also leads on iOS requirement (12.4 vs 15.0). 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.

Featherweight UI ships an update every 3 weeks, ChangeClubs every 5 days. The most recent releases landed on October 25, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Featherweight UI | ChangeClubs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (12 ratings)](https://appshunter.io/ios/app/featherweight-ui/id1641310058/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Free | — |
| Size | 101 MB | 45 MB |
| Requires iOS | 15.0 | **12.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Featherweight Altimeters LLC](https://appshunter.io/developer/1641310060) | [Change Clubs gemeinnutzige GmbH](https://appshunter.io/developer/1792190144) |

## What reviewers say

### Featherweight UI

[App page](https://appshunter.io/ios/app/featherweight-ui/id1641310058)

Connect your Bluetooth-enabled Featherweight Altimeters products to your phone. View live sensor data, configure settings, download flight information, and track your rocket's position and velocity with a live map.

**Highlights:** Connects to BLE Featherweight Altimeters, View live sensor data, Set deployment conditions, Download and review flight data, Track rocket position and velocity, Live map for recovery planning

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

**In-app purchases:** none


### ChangeClubs

[App page](https://appshunter.io/ios/app/changeclubs/id6740913710)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Featherweight UI free?

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

### Is ChangeClubs free?

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

### Do Featherweight UI or ChangeClubs have ads?

Neither Featherweight UI nor ChangeClubs shows ads.

### Which is updated more often, Featherweight UI or ChangeClubs?

Featherweight UI ships an update every 3 weeks, and ChangeClubs every 5 days. Most recently, Featherweight UI was updated on October 25, 2026 and ChangeClubs on October 14, 2026.

---

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