# Enerview Pro vs Barnacle

The clearest difference is in-app purchases: Enerview Pro at none against Barnacle's 2. Enerview Pro also leads on iOS requirement (13.0 vs 16.4). Barnacle's advantage is update cadence (every 2 days vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Barnacle sells 1 one-off in-app purchase. Enerview Pro asks for nothing beyond the download.

Enerview Pro ships an update every 2 months, Barnacle every 2 days. The most recent releases landed on September 22, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Enerview Pro | Barnacle |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Size | 49 MB | 46 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 17+ | 4+ |
| Developer | [Shenzhen Atess Power Technology Co.,Ltd](https://appshunter.io/developer/1669387102) | [Luke Wilkinson](https://appshunter.io/developer/1634252909) |

## What reviewers say

### Enerview Pro

[App page](https://appshunter.io/ios/app/enerview-pro/id6463692603)

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

**In-app purchases:** none


### Barnacle

[App page](https://appshunter.io/ios/app/barnacle/id6811345581)

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Barnacle Unlimited | $5.99 | one-time |


## Frequently asked questions

### Is Enerview Pro free?

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

### Is Barnacle free?

Barnacle is free to download, with in-app purchases available.

### Do Enerview Pro or Barnacle have ads?

Neither Enerview Pro nor Barnacle shows ads.

### Which is updated more often, Enerview Pro or Barnacle?

Enerview Pro ships an update every 2 months, and Barnacle every 2 days. Most recently, Enerview Pro was updated on September 22, 2026 and Barnacle on October 10, 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.*