# Smart M vs iSolarFlow

The clearest difference is iOS requirement: Smart M at 12.0 against iSolarFlow's 15.6. On price, update cadence, ads 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.

Smart M ships an update monthly, iSolarFlow every 2 months. The most recent releases landed on October 6, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Smart M | iSolarFlow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Size | 99 MB | 220 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Slenergy Technology(A.H.)Co.,Ltd.](https://appshunter.io/developer/1701018754) | [Hiconics Eco-Energy Technology Co.,Ltd.](https://appshunter.io/developer/1766064077) |

## What reviewers say

### Smart M

[App page](https://appshunter.io/ios/app/smart-m/id6462580670)

**Features:** macOS Compatibility

**In-app purchases:** none


### iSolarFlow

[App page](https://appshunter.io/ios/app/isolarflow/id6761892115)

**In-app purchases:** none


## Frequently asked questions

### Is Smart M free?

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

### Is iSolarFlow free?

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

### Do Smart M or iSolarFlow have ads?

Neither Smart M nor iSolarFlow shows ads.

### Which is updated more often, Smart M or iSolarFlow?

Smart M ships an update monthly, and iSolarFlow every 2 months. Most recently, Smart M was updated on October 6, 2026 and iSolarFlow on October 10, 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.*