# GALILEO vs D

The clearest difference is update cadence: D at every 6 days against GALILEO's every 2 months. GALILEO's advantage is iOS requirement (15.6 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.

GALILEO ships an update every 2 months, D every 6 days. The most recent releases landed on October 7, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | GALILEO | D |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 days** |
| Size | 14 MB | 47 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [Eliyahu Zagzag](https://appshunter.io/developer/1477093342) | [Mentis Tech, LLC](https://appshunter.io/developer/1877535700) |

## What reviewers say

### GALILEO

[App page](https://appshunter.io/ios/app/galileo/id6746385775)

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

**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 GALILEO free?

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

### Is D free?

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

### Do GALILEO or D have ads?

Neither GALILEO nor D shows ads.

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

GALILEO ships an update every 2 months, and D every 6 days. Most recently, GALILEO was updated on October 7, 2026 and D on October 20, 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.*