# umlaut Feedback vs FlexSpec Backpack

The clearest difference is update cadence: umlaut Feedback at every 2 months against FlexSpec Backpack's every 24 months. FlexSpec Backpack's advantage is iOS requirement (9.3 vs 14.0). 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.

umlaut Feedback ships an update every 2 months, FlexSpec Backpack every 24 months. The most recent releases landed on September 17, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | umlaut Feedback | FlexSpec Backpack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 24 months |
| Size | 8 MB | 140 MB |
| Requires iOS | 14.0 | **9.3** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Umlaut communications GmbH](https://appshunter.io/developer/1140955407) | [Bubble Technology Industries](https://appshunter.io/developer/1235174582) |

## What reviewers say

### umlaut Feedback

[App page](https://appshunter.io/ios/app/umlaut-feedback/id1205925355)

**Features:** macOS Compatibility

**In-app purchases:** none


### FlexSpec Backpack

[App page](https://appshunter.io/ios/app/flexspec-backpack/id1235174583)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is umlaut Feedback free?

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

### Is FlexSpec Backpack free?

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

### Do umlaut Feedback or FlexSpec Backpack have ads?

Neither umlaut Feedback nor FlexSpec Backpack shows ads.

### Which is updated more often, umlaut Feedback or FlexSpec Backpack?

umlaut Feedback ships an update every 2 months, and FlexSpec Backpack every 24 months. Most recently, umlaut Feedback was updated on September 17, 2026 and FlexSpec Backpack on September 10, 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.*