# EG4 vs WattCycle

The clearest difference is rating: EG4 at 2.3 against WattCycle's 2.0. EG4 also leads on review sentiment (25% vs 10%) and iOS requirement (14.0 vs 16.0). WattCycle's advantage is update cadence (every 9 days vs every 3 weeks) and ratings volume (48 vs 12). On price, ads, in-app purchases and monetization model there is nothing between them.

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

EG4 holds the better App Store score, 2.3 against 2.0. Both are backed by a comparable volume of ratings — 12 and 48 respectively. Written reviews point the same way: 25% of EG4's written reviews are positive against 10% of WattCycle's.

EG4 ships an update every 3 weeks, WattCycle every 9 days. The most recent releases landed on September 16, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | EG4 | WattCycle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (12 ratings)](https://appshunter.io/ios/app/eg4/id1571511617/reviews)** | [2.0 (48 ratings)](https://appshunter.io/ios/app/wattcycle/id6739477367/reviews) |
| Number of ratings | 12 | **48** |
| Positive reviews | **25.0% of reviews** | 10.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Monetization | Free | Free |
| Size | 10 MB | 94 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [琼莉 吴](https://appshunter.io/developer/1741032172) | [WattCycle](https://appshunter.io/developer/1785559487) |

## What reviewers say

### EG4

[App page](https://appshunter.io/ios/app/eg4/id1571511617)

This utility app monitors your device's battery health in real-time. It displays key metrics such as current, temperature, and voltage via Bluetooth connection. Keep track of your battery's vital signs to ensure optimal performance.

**Highlights:** Monitor battery health, Display current, temperature, voltage, Bluetooth connectivity, Real-time status updates, Device compatibility for iPhone/iPad

**Features:** macOS Compatibility

**In-app purchases:** none


### WattCycle

[App page](https://appshunter.io/ios/app/wattcycle/id6739477367)

This application connects to Bluetooth batteries to provide real-time monitoring of their status. It allows users to keep a close eye on their battery's performance and health.

**Highlights:** Bluetooth battery connection, Real-time battery status monitoring, Battery health tracking

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

**In-app purchases:** none


## Frequently asked questions

### Is EG4 free?

EG4 is free to download, with no in-app purchases.

### Is WattCycle free?

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

### Which has better reviews, EG4 or WattCycle?

EG4 is rated higher. EG4 averages 2.3 out of 5 from 12 ratings, while WattCycle averages 2.0 from 48 ratings.

### Do EG4 or WattCycle have ads?

Neither EG4 nor WattCycle shows ads.

### Which is updated more often, EG4 or WattCycle?

EG4 ships an update every 3 weeks, and WattCycle every 9 days. Most recently, EG4 was updated on September 16, 2026 and WattCycle on October 14, 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.*