# DrainMaster Plus vs IsiChat

The clearest difference is in-app purchases: IsiChat at none against DrainMaster Plus's 1. IsiChat also leads on update cadence (weekly vs fortnightly). DrainMaster Plus's advantage is iOS requirement (15.1 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. DrainMaster Plus sells 1 in-app purchase, starting at $3.99 per month. IsiChat asks for nothing beyond the download.

DrainMaster Plus ships an update fortnightly, IsiChat weekly. The most recent releases landed on October 10, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | DrainMaster Plus | IsiChat |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Size | 67 MB | 61 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [kobosil.me Development](https://appshunter.io/developer/951054288) | [Klaus Gutsch](https://appshunter.io/developer/1525467984) |

## What reviewers say

### DrainMaster Plus

[App page](https://appshunter.io/ios/app/drainmaster-plus/id6752567739)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DrainMaster Cloud Monthly | $3.99 | per month |


### IsiChat

[App page](https://appshunter.io/ios/app/isichat/id6753902574)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DrainMaster Plus free?

DrainMaster Plus is free to download, with in-app purchases available.

### Is IsiChat free?

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

### Do DrainMaster Plus or IsiChat have ads?

Neither DrainMaster Plus nor IsiChat shows ads.

### Which is updated more often, DrainMaster Plus or IsiChat?

DrainMaster Plus ships an update fortnightly, and IsiChat weekly. Most recently, DrainMaster Plus was updated on October 10, 2026 and IsiChat on October 11, 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.*