# ALC Observer vs Power Zero

The clearest difference is rating: Power Zero at 3.0 against ALC Observer's 1.4. Power Zero also leads on review sentiment (41% vs 0%). ALC Observer's advantage is ratings volume (17 vs 2) and iOS requirement (7.0 vs 15.5). 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.

Power Zero holds the better App Store score, 3.0 against 1.4. That said, the two scores are not equally well evidenced: ALC Observer has 17 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of ALC Observer's written reviews are positive against 41% of Power Zero's.

ALC Observer ships an update monthly, Power Zero every 6 weeks. The most recent releases landed on September 21, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | ALC Observer | Power Zero |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.4 (17 ratings)](https://appshunter.io/ios/app/alc-observer/id911841854/reviews) | **[3.0 (2 ratings)](https://appshunter.io/ios/app/power-zero/id1663188533/reviews)** |
| Number of ratings | **17** | 2 |
| Positive reviews | 0.0% of reviews | **40.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 weeks |
| Monetization | Free | Free |
| Size | 52 MB | 149 MB |
| Requires iOS | **7.0** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [JSW PACIFIC CORPORATION](https://appshunter.io/developer/999731327) | [毅 伍](https://appshunter.io/developer/1088814173) |

## What reviewers say

### ALC Observer

[App page](https://appshunter.io/ios/app/alc-observer/id911841854)

Monitor your home or loved ones remotely with live video feeds. This app allows for manual or motion-activated recording and playback directly on your device. Receive notifications to stay updated on activity.

**Highlights:** Live video streaming, Motion detection recording, Manual video recording, Video playback, Push notifications

**Features:** macOS Compatibility

**In-app purchases:** none


### Power Zero

[App page](https://appshunter.io/ios/app/power-zero/id1663188533)

Monitor and control your smart energy devices remotely. Track energy usage and production in real-time, find ways to improve efficiency, and manage your solar system's status.

**Highlights:** Real-time energy usage tracking, Energy production monitoring, Energy efficiency improvement suggestions, Remote smart home device control, Solar system status monitoring, Historical energy data

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ALC Observer free?

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

### Is Power Zero free?

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

### Which has better reviews, ALC Observer or Power Zero?

Power Zero is rated higher. ALC Observer averages 1.4 out of 5 from 17 ratings, while Power Zero averages 3.0 from 2 ratings.

### Do ALC Observer or Power Zero have ads?

Neither ALC Observer nor Power Zero shows ads.

### Which is updated more often, ALC Observer or Power Zero?

ALC Observer ships an update monthly, and Power Zero every 6 weeks. Most recently, ALC Observer was updated on September 21, 2026 and Power Zero on September 6, 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.*