# Smart Sensor 4.0 vs MaintWiz

The clearest difference is update cadence: MaintWiz at every 10 days against Smart Sensor 4.0's every 3 months. Smart Sensor 4.0's advantage is iOS requirement (8.0 vs 16.0). 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.

Smart Sensor 4.0 ships an update every 3 months, MaintWiz every 10 days. The most recent releases landed on October 10, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Smart Sensor 4.0 | MaintWiz |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 10 days** |
| Size | 77 MB | 55 MB |
| Requires iOS | **8.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Infinite Uptime India Pvt Ltd](https://appshunter.io/developer/1511466684) | [MaintWiz Technologies Private Limited](https://appshunter.io/developer/1566848512) |

## What reviewers say

### Smart Sensor 4.0

[App page](https://appshunter.io/ios/app/smart-sensor-40/id1511517119)

**Features:** macOS Compatibility

**In-app purchases:** none


### MaintWiz

[App page](https://appshunter.io/ios/app/maintwiz/id6618150243)

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

**In-app purchases:** none


## Frequently asked questions

### Is Smart Sensor 4.0 free?

Smart Sensor 4.0 is free to download, with no in-app purchases.

### Is MaintWiz free?

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

### Do Smart Sensor 4.0 or MaintWiz have ads?

Neither Smart Sensor 4.0 nor MaintWiz shows ads.

### Which is updated more often, Smart Sensor 4.0 or MaintWiz?

Smart Sensor 4.0 ships an update every 3 months, and MaintWiz every 10 days. Most recently, Smart Sensor 4.0 was updated on October 10, 2026 and MaintWiz on September 30, 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.*