# Differential Pressure vs Multifunctional clean robot

The clearest difference is update cadence: Multifunctional clean robot at every 4 weeks against Differential Pressure's every 4 months. 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.

Differential Pressure ships an update every 4 months, Multifunctional clean robot every 4 weeks. The most recent releases landed on September 17, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Differential Pressure | Multifunctional clean robot |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 weeks** |
| Size | 4 MB | 58 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kane Asia Inc.](https://appshunter.io/developer/1542732944) | [奇雷 项](https://appshunter.io/developer/1724769198) |

## What reviewers say

### Differential Pressure

[App page](https://appshunter.io/ios/app/differential-pressure/id1099444569)

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

**In-app purchases:** none


### Multifunctional clean robot

[App page](https://appshunter.io/ios/app/multifunctional-clean-robot/id6747013833)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Differential Pressure free?

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

### Is Multifunctional clean robot free?

Multifunctional clean robot is free to download, with no in-app purchases.

### Do Differential Pressure or Multifunctional clean robot have ads?

Neither Differential Pressure nor Multifunctional clean robot shows ads.

### Which is updated more often, Differential Pressure or Multifunctional clean robot?

Differential Pressure ships an update every 4 months, and Multifunctional clean robot every 4 weeks. Most recently, Differential Pressure was updated on September 17, 2026 and Multifunctional clean robot on September 8, 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.*