# Prepaid Meter vs ECG Operation Zero

The clearest difference is rating: ECG Operation Zero at 4.0 against Prepaid Meter's 2.2. ECG Operation Zero also leads on iOS requirement (12.0 vs 15.1). Prepaid Meter's advantage is ratings volume (6 vs 1). 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.

ECG Operation Zero holds the better App Store score, 4.0 against 2.2. That said, the two scores are not equally well evidenced: Prepaid Meter has 6 ratings behind it against 1, so its average is the more settled of the two.

Prepaid Meter ships an update monthly, ECG Operation Zero fortnightly. The most recent releases landed on October 11, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Prepaid Meter | ECG Operation Zero |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.2 (6 ratings)](https://appshunter.io/ios/app/prepaid-meter/id6448630946/reviews) | **[4.0 (1 ratings)](https://appshunter.io/ios/app/ecg-operation-zero/id6474657668/reviews)** |
| Number of ratings | **6** | 1 |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free | Free |
| Size | 45 MB | 71 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [IOBOTECH LIMITED](https://appshunter.io/developer/1685189519) | [Electricity Company of Ghana Ltd.](https://appshunter.io/developer/1398352883) |

## What reviewers say

### Prepaid Meter

[App page](https://appshunter.io/ios/app/prepaid-meter/id6448630946)

Monitor your energy, water, and fuel usage in real-time. Remotely recharge your prepaid meter without needing to enter tokens directly.

**Highlights:** Real-time consumption monitoring, Energy, water, and fuel tracking, Remote prepaid meter recharging, Tokenless meter top-ups, Usage analytics

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

**In-app purchases:** none


### ECG Operation Zero

[App page](https://appshunter.io/ios/app/ecg-operation-zero/id6474657668)

This app empowers electricity company staff to combat revenue losses caused by illegal electricity consumption. It provides the necessary information and processes to address issues like illegal connections and meter tampering, contributing to a more stable power supply.

**Highlights:** Combat revenue losses, Address illegal consumption, Tackle meter tampering, Improve power stability, Equip field staff, Fight nationwide power cuts

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Prepaid Meter free?

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

### Is ECG Operation Zero free?

ECG Operation Zero is free to download, with no in-app purchases.

### Which has better reviews, Prepaid Meter or ECG Operation Zero?

ECG Operation Zero is rated higher. Prepaid Meter averages 2.2 out of 5 from 6 ratings, while ECG Operation Zero averages 4.0 from 1 ratings.

### Do Prepaid Meter or ECG Operation Zero have ads?

Neither Prepaid Meter nor ECG Operation Zero shows ads.

### Which is updated more often, Prepaid Meter or ECG Operation Zero?

Prepaid Meter ships an update monthly, and ECG Operation Zero fortnightly. Most recently, Prepaid Meter was updated on October 11, 2026 and ECG Operation Zero on October 5, 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.*