# EyeOpen | Powertech vs Chemistry Equations

The clearest difference is in-app purchases: Chemistry Equations at none against EyeOpen | Powertech's 12. Chemistry Equations also leads on update cadence (weekly vs every 2 months). EyeOpen | Powertech's advantage is iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. EyeOpen | Powertech sells 12 in-app purchases, starting at $0.99 per month. Chemistry Equations asks for nothing beyond the download.

EyeOpen | Powertech ships an update every 2 months, Chemistry Equations weekly. The most recent releases landed on October 23, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | EyeOpen | Powertech | Chemistry Equations |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/eyeopen-powertech/id1195096644/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 13.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Subscription | — |
| Size | 181 MB | 5 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Powertech Automation Inc.](https://appshunter.io/developer/1195096643) | [JIESUS RICARDO ROJAS MANJARREZ](https://appshunter.io/developer/1882247572) |

## What reviewers say

### EyeOpen | Powertech

[App page](https://appshunter.io/ios/app/eyeopen-powertech/id1195096644)

Remotely manage and monitor your garage door from anywhere using your smartphone. Receive instant notifications about its status and ensure your home is secure. Offers smart pairing and robust security features for peace of mind.

**Highlights:** Remote garage door opening and closing, Real-time status notifications, Smart device pairing, Smartphone setup, 6-digit PIN security, 64-bit AES encryption

**Features:** Vision Pro support

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Widget | $0.99 | per month |
| Notify Management | $0.99 | per month |
| IFTTT | $9.99 | per year |
| Widget | $9.99 | per year |
| Notify Management | $9.99 | per year |
| Edit remote's button | $29.99 | one-time |
| Remote backup & restore | $29.99 | one-time |
| Unlock remote edit permissions | $29.99 | one-time |
| Classic Edition + 10 members | $30.99 | one-time |
| 3 month record | $54.99 | one-time |
| Deluxe Edition + 50 members | $89.99 | one-time |
| Ultimate Edition + 90 members | $139.99 | one-time |


### Chemistry Equations

[App page](https://appshunter.io/ios/app/chemistry-equations-chemy-plus/id6812942953)

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

**In-app purchases:** none


## Frequently asked questions

### Is EyeOpen | Powertech free?

EyeOpen | Powertech is free to download, with in-app purchases available.

### Is Chemistry Equations free?

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

### Do EyeOpen | Powertech or Chemistry Equations have ads?

Neither EyeOpen | Powertech nor Chemistry Equations shows ads.

### Which is updated more often, EyeOpen | Powertech or Chemistry Equations?

EyeOpen | Powertech ships an update every 2 months, and Chemistry Equations weekly. Most recently, EyeOpen | Powertech was updated on October 23, 2026 and Chemistry Equations on October 18, 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.*