# TEPCO省エネウォッチ vs 四字熟語挑戦

The clearest difference is price: TEPCO省エネウォッチ at Free against 四字熟語挑戦's $1.99. TEPCO省エネウォッチ also leads on ads (none vs shown) and device support (3 vs 1). On update cadence and in-app purchases there is nothing between them.

TEPCO省エネウォッチ is free to download; 四字熟語挑戦 costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

TEPCO省エネウォッチ ships an update every 5 weeks, 四字熟語挑戦 every 3 weeks. The most recent releases landed on October 18, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | TEPCO省エネウォッチ | 四字熟語挑戦 |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Size | 20 MB | 4 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [TEPCO Energy Partner, Inc.](https://appshunter.io/developer/527906228) | [Hidenori Tanaka](https://appshunter.io/developer/1629378671) |

## What reviewers say

### TEPCO省エネウォッチ

[App page](https://appshunter.io/ios/app/tepco/id1447431669)

**In-app purchases:** none


### 四字熟語挑戦

[App page](https://appshunter.io/ios/app/id6499090583)

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

**In-app purchases:** none


## Frequently asked questions

### Is TEPCO省エネウォッチ free?

TEPCO省エネウォッチ is free to download, with no in-app purchases.

### Is 四字熟語挑戦 free?

四字熟語挑戦 costs $1.99, with no in-app purchases.

### Do TEPCO省エネウォッチ or 四字熟語挑戦 have ads?

四字熟語挑戦 shows ads; TEPCO省エネウォッチ does not.

### Which is updated more often, TEPCO省エネウォッチ or 四字熟語挑戦?

TEPCO省エネウォッチ ships an update every 5 weeks, and 四字熟語挑戦 every 3 weeks. Most recently, TEPCO省エネウォッチ was updated on October 18, 2026 and 四字熟語挑戦 on October 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*