# PRO type vs WFワットチェッカー

The clearest difference is in-app purchases: WFワットチェッカー at none against PRO type's 5. WFワットチェッカー also leads on update cadence (every 2 months vs every 9 months). PRO type's advantage is iOS requirement (9.0 vs 12.0). On price, ads and device support there is nothing between them.

Both are free to download. PRO type sells 5 one-off in-app purchases. WFワットチェッカー asks for nothing beyond the download.

PRO type ships an update every 9 months, WFワットチェッカー every 2 months. The most recent releases landed on October 16, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | PRO type | WFワットチェッカー |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 11.1% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 4 MB | 25 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DILTS JAPAN, LIMITED LIABILITY CO.](https://appshunter.io/developer/780416956) | [RATOC Systems, Inc.](https://appshunter.io/developer/568725272) |

## What reviewers say

### PRO type

[App page](https://appshunter.io/ios/app/pro-type-v-fireplus/id1328424681)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GROM JC75 | $3.99 | one-time |
| CYGNUS-X SED8J | $3.99 | one-time |
| CYGNUS-X SEA5J | $3.99 | one-time |
| GROM JC61 | $3.99 | one-time |
| GSX-R125 DL33B/S125 DL32B | $3.99 | one-time |


### WFワットチェッカー

[App page](https://appshunter.io/ios/app/wf/id1490361450)

Monitor your home's electricity consumption in real-time via your smartphone. Track power usage, voltage, and current, with options to view historical data in graphs and export it to CSV. Remotely control power to connected devices.

**Highlights:** Real-time power consumption display, Convert usage to electricity cost and CO2 emissions, Graph historical usage (hourly, daily, monthly), Export measurement data to CSV, Remote power ON/OFF control

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PRO type free?

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

### Is WFワットチェッカー free?

WFワットチェッカー is free to download, with no in-app purchases.

### Do PRO type or WFワットチェッカー have ads?

Neither PRO type nor WFワットチェッカー shows ads.

### Which is updated more often, PRO type or WFワットチェッカー?

PRO type ships an update every 9 months, and WFワットチェッカー every 2 months. Most recently, PRO type was updated on October 16, 2026 and WFワットチェッカー on October 26, 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.*