# PSI Smart vs PSI Solarcell

The clearest difference is ads: PSI Smart at none against PSI Solarcell's shown. PSI Smart also leads on iOS requirement (12.0 vs 15.0). PSI Solarcell's advantage is update cadence (every 3 days vs fortnightly). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PSI Smart ships an update fortnightly, PSI Solarcell every 3 days. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | PSI Smart | PSI Solarcell |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 3 days** |
| Monetization | Free | — |
| Size | 61 MB | 73 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SOFTTECH NETWORK COMPANY LIMITED](https://appshunter.io/developer/1095604731) | [psicorporation](https://appshunter.io/developer/1829887656) |

## What reviewers say

### PSI Smart

[App page](https://appshunter.io/ios/app/psi-smart/id1549496287)

Control smart home devices remotely and conveniently. Easily connect your devices for a secure and seamless smart living experience.

**Highlights:** Remote device control, Easy device connection, Smart home automation, Secure connectivity, Anytime, anywhere access

**Features:** macOS Compatibility

**In-app purchases:** none


### PSI Solarcell

[App page](https://appshunter.io/ios/app/psi-solarcell/id6751521488)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PSI Smart free?

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

### Is PSI Solarcell free?

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

### Do PSI Smart or PSI Solarcell have ads?

PSI Solarcell shows ads; PSI Smart does not.

### Which is updated more often, PSI Smart or PSI Solarcell?

PSI Smart ships an update fortnightly, and PSI Solarcell every 3 days. Most recently, PSI Smart was updated on November 3, 2026 and PSI Solarcell on November 5, 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.*