# 台塑RTPMS vs 修水電

The clearest difference is iOS requirement: 修水電 at 13.0 against 台塑RTPMS's 15.0. 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.

台塑RTPMS ships an update every 6 weeks, 修水電 every 3 months. The most recent releases landed on October 17, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 台塑RTPMS | 修水電 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Size | 101 MB | 18 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [FORMOSA PLASTICS CORPORATION](https://appshunter.io/developer/1089824098) | [GIANT INFORMATION CO., LTD.](https://appshunter.io/developer/665035986) |

## What reviewers say

### 台塑RTPMS

[App page](https://appshunter.io/ios/app/rtpms/id1207174264)

**Features:** Vision Pro support

**In-app purchases:** none


### 修水電

[App page](https://appshunter.io/ios/app/id1635904468)

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

**In-app purchases:** none


## Frequently asked questions

### Is 台塑RTPMS free?

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

### Is 修水電 free?

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

### Do 台塑RTPMS or 修水電 have ads?

Neither 台塑RTPMS nor 修水電 shows ads.

### Which is updated more often, 台塑RTPMS or 修水電?

台塑RTPMS ships an update every 6 weeks, and 修水電 every 3 months. Most recently, 台塑RTPMS was updated on October 17, 2026 and 修水電 on October 25, 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.*