# Dr. Block vs Serene Orbs

The clearest difference is update cadence: Serene Orbs at every 3 months against Dr. Block's every 8 months. Dr. Block's advantage is iOS requirement (10.0 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.

Dr. Block ships an update every 8 months, Serene Orbs every 3 months. Both last shipped on October 25, 2026.

## The numbers

| Metric | Dr. Block | Serene Orbs |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 8 months | **Every 3 months** |
| Size | 31 MB | 58 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SUD Inc.](https://appshunter.io/developer/453469451) | [Olivier Ricot](https://appshunter.io/developer/1754321345) |

## What reviewers say

### Dr. Block

[App page](https://appshunter.io/ios/app/dr-block/id1489855738)

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

**In-app purchases:** none


### Serene Orbs

[App page](https://appshunter.io/ios/app/serene-orbs/id6504914382)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Dr. Block free?

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

### Is Serene Orbs free?

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

### Do Dr. Block or Serene Orbs have ads?

Both Dr. Block and Serene Orbs show ads.

### Which is updated more often, Dr. Block or Serene Orbs?

Dr. Block ships an update every 8 months, and Serene Orbs every 3 months. Most recently, Dr. Block was updated on October 25, 2026 and Serene Orbs on October 25, 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.*