# S vs iRoller

The clearest difference is device support: S at 2 against iRoller's —. iRoller's advantage is iOS requirement (12.0 vs 15.0). On price 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.

## The numbers

| Metric | S | iRoller |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (89 ratings)](https://appshunter.io/ios/app/s-miles-enduser/id1544760866/reviews)** | — |
| Number of ratings | **89** | — |
| Positive reviews | 37.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Monthly | — |
| Monetization | Free | — |
| Size | 207 MB | 20 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Hoymiles Power Electronics Inc.](https://appshunter.io/developer/1219594358) | [琦柱 汤](https://appshunter.io/developer/1759835364) |

## What reviewers say

### S

[App page](https://appshunter.io/ios/app/s-miles-enduser/id1544760866)

Monitor your distributed PV power plant's performance with real-time data. Track energy generation, view module-level details, and receive equipment alarm notifications to ensure optimal operation and yield.

**Highlights:** Module-level monitoring, Real-time data display, Plant-level data, Energy generation tracking, Alarm information

**Features:** macOS Compatibility

**In-app purchases:** none


### iRoller

[App page](https://appshunter.io/ios/app/iroller-plus/id6596812655)

**In-app purchases:** none


## Frequently asked questions

### Is S free?

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

### Is iRoller free?

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

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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.*