# smart vs SWLtools

The clearest difference is price: smart at Free against SWLtools's $3.99. smart also leads on iOS requirement (13.0 vs 17.0). SWLtools's advantage is update cadence (every 3 months vs every 10 months). On ads, in-app purchases and device support there is nothing between them.

smart is free to download; SWLtools costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

smart ships an update every 10 months, SWLtools every 3 months. The most recent releases landed on September 29, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | smart | SWLtools |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 months** |
| Size | 56 MB | 5 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [振军 汤](https://appshunter.io/developer/1473241282) | [Stefano Rampazzo](https://appshunter.io/developer/396660919) |

## What reviewers say

### smart

[App page](https://appshunter.io/ios/app/smart-meter/id1664696690)

**Features:** macOS Compatibility

**In-app purchases:** none


### SWLtools

[App page](https://appshunter.io/ios/app/swltools/id6618146941)

**In-app purchases:** none


## Frequently asked questions

### Is smart free?

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

### Is SWLtools free?

SWLtools costs $3.99, with no in-app purchases.

### Do smart or SWLtools have ads?

Neither smart nor SWLtools shows ads.

### Which is updated more often, smart or SWLtools?

smart ships an update every 10 months, and SWLtools every 3 months. Most recently, smart was updated on September 29, 2026 and SWLtools on September 25, 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.*