# Epoch Pro vs Abyss

The clearest difference is update cadence: Abyss at every 2 months against Epoch Pro's every 13 months. Epoch Pro's advantage is ratings volume (26 vs 3). On price, rating, 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.

On the App Store both sit at effectively the same score — 3.9 for Epoch Pro against 4.0 for Abyss. That said, the two scores are not equally well evidenced: Epoch Pro has 26 ratings behind it against 3, so its average is the more settled of the two.

Epoch Pro ships an update every 13 months, Abyss every 2 months. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Epoch Pro | Abyss |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (26 ratings)](https://appshunter.io/ios/app/epoch-pro/id6463113720/reviews) | **[4.0 (3 ratings)](https://appshunter.io/ios/app/abyss-infinite/id6747150343/reviews)** |
| Number of ratings | **26** | 3 |
| Positive reviews | 58.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 17 MB | 36 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [EDG Sales International LLC](https://appshunter.io/developer/1546168152) | [TBB Power Co., Ltd](https://appshunter.io/developer/1089239531) |

## What reviewers say

### Epoch Pro

[App page](https://appshunter.io/ios/app/epoch-pro/id6463113720)

Monitor and manage your Epoch Pro batteries with this app. It provides real-time data on individual batteries and systems, offers Bluetooth connectivity for enhanced user experience, and helps extend battery life and stability.

**Highlights:** Real-time SOC, voltage, current, capacity, temperature monitoring, Individual battery voltage and alarm status display, Cell temperature and parameter warnings (over/under voltage, over current), Bluetooth connectivity for battery systems, Record of warnings and protection events, Extend battery service life and enhance stability

**Features:** macOS Compatibility

**In-app purchases:** none


### Abyss

[App page](https://appshunter.io/ios/app/abyss-infinite/id6747150343)

Monitor your device's battery, system diagnostics, and charger status. This app also allows for wireless firmware updates for compatible devices, all managed from your mobile phone.

**Highlights:** Real-time battery data, System diagnostics, Charger status monitoring, Wireless firmware updates, Mobile device management

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Epoch Pro free?

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

### Is Abyss free?

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

### Which has better reviews, Epoch Pro or Abyss?

Abyss is rated higher. Epoch Pro averages 3.9 out of 5 from 26 ratings, while Abyss averages 4.0 from 3 ratings.

### Do Epoch Pro or Abyss have ads?

Neither Epoch Pro nor Abyss shows ads.

### Which is updated more often, Epoch Pro or Abyss?

Epoch Pro ships an update every 13 months, and Abyss every 2 months. Most recently, Epoch Pro was updated on October 21, 2026 and Abyss on October 24, 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.*