# SENSOR PLUS vs DrainMaster Plus

The clearest difference is in-app purchases: SENSOR PLUS at none against DrainMaster Plus's 1. SENSOR PLUS also leads on iOS requirement (11.0 vs 15.1). DrainMaster Plus's advantage is update cadence (fortnightly vs every 5 months). 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. SENSOR PLUS asks for nothing beyond the download.

SENSOR PLUS ships an update every 5 months, DrainMaster Plus fortnightly. The most recent releases landed on October 4, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | SENSOR PLUS | DrainMaster Plus |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Fortnightly** |
| Size | 141 MB | 67 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [深圳豪成智能科技有限公司](https://appshunter.io/developer/1701767992) | [kobosil.me Development](https://appshunter.io/developer/951054288) |

## What reviewers say

### SENSOR PLUS

[App page](https://appshunter.io/ios/app/sensor-plus/id1448995280)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is SENSOR PLUS free?

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

### Is DrainMaster Plus free?

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

### Do SENSOR PLUS or DrainMaster Plus have ads?

Neither SENSOR PLUS nor DrainMaster Plus shows ads.

### Which is updated more often, SENSOR PLUS or DrainMaster Plus?

SENSOR PLUS ships an update every 5 months, and DrainMaster Plus fortnightly. Most recently, SENSOR PLUS was updated on October 4, 2026 and DrainMaster Plus on October 10, 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.*