# RedAlert vs D

The clearest difference is update cadence: D at every 5 days against RedAlert's every 4 weeks. RedAlert's advantage is iOS requirement (12.0 vs 17.0). 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.

RedAlert ships an update every 4 weeks, D every 5 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | RedAlert | D |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 5 days** |
| Size | 46 MB | 59 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 9+ |
| Developer | [Shahaf Ben Shalom](https://appshunter.io/developer/1710600410) | [Mentis Tech, LLC](https://appshunter.io/developer/1877535700) |

## What reviewers say

### RedAlert

[App page](https://appshunter.io/ios/app/redalert/id6468818981)

**Features:** macOS Compatibility

**In-app purchases:** none


### D

[App page](https://appshunter.io/ios/app/d-bell/id6793912963)

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

**In-app purchases:** none


## Frequently asked questions

### Is RedAlert free?

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

### Is D free?

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

### Do RedAlert or D have ads?

Neither RedAlert nor D shows ads.

### Which is updated more often, RedAlert or D?

RedAlert ships an update every 4 weeks, and D every 5 days. Most recently, RedAlert was updated on October 25, 2026 and D on October 24, 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.*