# Looopでんき vs naGi time

Looopでんき and naGi time are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Looopでんき ships an update every 10 days, naGi time fortnightly. The most recent releases landed on October 3, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Looopでんき | naGi time |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/looop/id6444430723/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Fortnightly |
| Monetization | Free | — |
| Size | 163 MB | 3 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [株式会社Looop](https://appshunter.io/developer/1287380013) | [METICULOUS INC.](https://appshunter.io/developer/1888707630) |

## What reviewers say

### Looopでんき

[App page](https://appshunter.io/ios/app/looop/id6444430723)

This app helps users manage their electricity usage to save money and utilize renewable energy. It offers features like electricity price forecasts, future billing predictions, and gamified learning for smart energy consumption. Users can also track their collective impact on the environment through green energy initiatives.

**Highlights:** Electricity price forecasting, Future billing prediction, Gamified smart energy learning, Visualize smart energy usage, Track renewable energy utilization, Green energy initiative participation

**Features:** Vision Pro support

**In-app purchases:** none


### naGi time

[App page](https://appshunter.io/ios/app/nagi-time/id6798885837)

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

**In-app purchases:** none


## Frequently asked questions

### Is Looopでんき free?

Looopでんき is free to download, with no in-app purchases.

### Is naGi time free?

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

### Do Looopでんき or naGi time have ads?

Neither Looopでんき nor naGi time shows ads.

### Which is updated more often, Looopでんき or naGi time?

Looopでんき ships an update every 10 days, and naGi time fortnightly. Most recently, Looopでんき was updated on October 3, 2026 and naGi time on October 16, 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.*