# 대성IoT보일러 vs PayHow

The clearest difference is review sentiment: PayHow at 100% against 대성IoT보일러's 15%. 대성IoT보일러's advantage is in-app purchases (none vs 3) and update cadence (every 6 months vs every 33 months). On price, ads and device support there is nothing between them.

Both are free to download. PayHow sells 3 one-off in-app purchases. 대성IoT보일러 asks for nothing beyond the download.

대성IoT보일러 ships an update every 6 months, PayHow every 33 months. The most recent releases landed on October 6, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | 대성IoT보일러 | PayHow |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 15.4% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 33 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 47 MB | 3 MB |
| Requires iOS | **12.0** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [대성쎌틱에너시스㈜](https://appshunter.io/developer/1064312213) | [Donggun Lee](https://appshunter.io/developer/1533386925) |

## What reviewers say

### 대성IoT보일러

[App page](https://appshunter.io/ios/app/iot/id1130845953)

Control your home heating and hot water remotely via smartphone or tablet. Monitor usage, set schedules, and receive alerts for system status and errors. Enjoy various heating modes for comfort and efficiency.

**Highlights:** Remote heating and hot water control, Usage monitoring and reporting, Scheduling and timer functions, Automatic service request, Status and error notifications, Multiple heating modes

**Features:** macOS Compatibility

**In-app purchases:** none


### PayHow

[App page](https://appshunter.io/ios/app/payhow/id1533386923)

Effortlessly manage group expenses and split bills with clear visual summaries. Track participants for each item and organize expenses by round to simplify settling up with friends.

**Highlights:** Smart group expense splitting, Multi-round expense management, Categorize expenses by round and item, Visual color tags for participation, Full-view image sharing of settlements, Export settlement details in image and text

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy me a candy | $0.99 | one-time |
| Buy me a coffee | $1.99 | one-time |
| Buy me a burger | $3.99 | one-time |


## Frequently asked questions

### Is 대성IoT보일러 free?

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

### Is PayHow free?

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

### Do 대성IoT보일러 or PayHow have ads?

Neither 대성IoT보일러 nor PayHow shows ads.

### Which is updated more often, 대성IoT보일러 or PayHow?

대성IoT보일러 ships an update every 6 months, and PayHow every 33 months. Most recently, 대성IoT보일러 was updated on October 6, 2026 and PayHow on September 23, 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.*