# IoTian vs PV Logic ONE SOLUTION

The clearest difference is update cadence: PV Logic ONE SOLUTION at every 5 days against IoTian's every 7 months. On price, ads, 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.

IoTian ships an update every 7 months, PV Logic ONE SOLUTION every 5 days. The most recent releases landed on September 9, 2026 and May 17, 2026 respectively.

## The numbers

| Metric | IoTian | PV Logic ONE SOLUTION |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 5 days** |
| Size | 22 MB | 55 MB |
| Requires iOS | **15** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EKON-SYS s.r.o.](https://appshunter.io/developer/1529404686) | [Doktor online a.s.](https://appshunter.io/developer/1650428028) |

## What reviewers say

### IoTian

[App page](https://appshunter.io/ios/app/iotian/id1529404384)

**Features:** macOS Compatibility

**In-app purchases:** none


### PV Logic ONE SOLUTION

[App page](https://appshunter.io/ios/app/pv-logic-one-solution/id6742233750)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is IoTian free?

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

### Is PV Logic ONE SOLUTION free?

PV Logic ONE SOLUTION is free to download, with no in-app purchases.

### Do IoTian or PV Logic ONE SOLUTION have ads?

Neither IoTian nor PV Logic ONE SOLUTION shows ads.

### Which is updated more often, IoTian or PV Logic ONE SOLUTION?

IoTian ships an update every 7 months, and PV Logic ONE SOLUTION every 5 days. Most recently, IoTian was updated on September 9, 2026 and PV Logic ONE SOLUTION on May 17, 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.*