# ZCO2.SC vs P7M Viewer Opener Reader

The clearest difference is in-app purchases: ZCO2.SC at none against P7M Viewer Opener Reader's 1. ZCO2.SC also leads on update cadence (every 10 days vs every 4 months) and iOS requirement (11.0 vs 13.0). On price, ads and device support there is nothing between them.

Both are free to download. P7M Viewer Opener Reader sells 1 in-app purchase, starting at $9.99 per year. ZCO2.SC asks for nothing beyond the download.

ZCO2.SC ships an update every 10 days, P7M Viewer Opener Reader every 4 months. The most recent releases landed on October 21, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | ZCO2.SC | P7M Viewer Opener Reader |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 4 months |
| Monetization | Free | — |
| Size | 32 MB | 46 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Energy SPA](https://appshunter.io/developer/1670618734) | [NEURASYNC](https://appshunter.io/developer/1639101560) |

## What reviewers say

### ZCO2.SC

[App page](https://appshunter.io/ios/app/zco2sc/id1602804768)

Manage your home electric vehicle charger with advanced charging control, scheduling, and home load balancing. Optimize your charging experience and manage energy consumption efficiently.

**Highlights:** Charging control, Schedule charging, Home load management, EV charger optimization, Energy consumption management

**Features:** macOS Compatibility

**In-app purchases:** none


### P7M Viewer Opener Reader

[App page](https://appshunter.io/ios/app/p7m-viewer-opener-reader/id6755112018)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| P7M Viewer PRO Annual Plan | $9.99 | per year |


## Frequently asked questions

### Is ZCO2.SC free?

ZCO2.SC is free to download, with no in-app purchases.

### Is P7M Viewer Opener Reader free?

P7M Viewer Opener Reader is free to download, with in-app purchases available.

### Do ZCO2.SC or P7M Viewer Opener Reader have ads?

Neither ZCO2.SC nor P7M Viewer Opener Reader shows ads.

### Which is updated more often, ZCO2.SC or P7M Viewer Opener Reader?

ZCO2.SC ships an update every 10 days, and P7M Viewer Opener Reader every 4 months. Most recently, ZCO2.SC was updated on October 21, 2026 and P7M Viewer Opener Reader on October 28, 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.*