# Opro9 SmartDiaper vs iSeat

The clearest difference is iOS requirement: Opro9 SmartDiaper at 12.4 against iSeat's 14.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Opro9 SmartDiaper ships an update monthly, iSeat every 5 weeks. The most recent releases landed on October 22, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Opro9 SmartDiaper | iSeat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (2 ratings)](https://appshunter.io/ios/app/opro9-smartdiaper/id1108754105/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 22.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | Free | — |
| Size | 30 MB | 24 MB |
| Requires iOS | **12.4** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CviLux Corporation](https://appshunter.io/developer/895729968) | [karma medical products co. ltd](https://appshunter.io/developer/1649874278) |

## What reviewers say

### Opro9 SmartDiaper

[App page](https://appshunter.io/ios/app/opro9-smartdiaper/id1108754105)

This app connects to a wearable sensor to detect when a baby wets their diaper. It sends timely notifications to parents, providing information on temperature and humidity levels, and tracks diaper changes. It acts as a high-tech assistant for caretakers.

**Highlights:** Bluetooth sensor connection, Diaper wetness detection, Timely parent notifications, Child temperature and humidity monitoring, Diaper change statistics, Connect to multiple sensors

**In-app purchases:** none


### iSeat

[App page](https://appshunter.io/ios/app/iseat/id6478748568)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Opro9 SmartDiaper free?

Opro9 SmartDiaper is free to download, with no in-app purchases.

### Is iSeat free?

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

### Do Opro9 SmartDiaper or iSeat have ads?

Neither Opro9 SmartDiaper nor iSeat shows ads.

### Which is updated more often, Opro9 SmartDiaper or iSeat?

Opro9 SmartDiaper ships an update monthly, and iSeat every 5 weeks. Most recently, Opro9 SmartDiaper was updated on October 22, 2026 and iSeat on October 27, 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.*