# smart vs MeterWorks Vibrometer

The clearest difference is in-app purchases: smart at none against MeterWorks Vibrometer's 1. smart also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). MeterWorks Vibrometer's advantage is update cadence (every 2 weeks vs every 10 months). On price and ads there is nothing between them.

Both are free to download. MeterWorks Vibrometer sells 1 one-off in-app purchase. smart asks for nothing beyond the download.

smart ships an update every 10 months, MeterWorks Vibrometer every 2 weeks. The most recent releases landed on October 14, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | smart | MeterWorks Vibrometer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 2 weeks** |
| Size | 56 MB | 7 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [振军 汤](https://appshunter.io/developer/1473241282) | [Emil Deak](https://appshunter.io/developer/1883312248) |

## What reviewers say

### smart

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

**Features:** macOS Compatibility

**In-app purchases:** none


### MeterWorks Vibrometer

[App page](https://appshunter.io/ios/app/meterworks-vibrometer/id6779408803)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MessWerk Pro | $7.99 | one-time |


## Frequently asked questions

### Is smart free?

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

### Is MeterWorks Vibrometer free?

MeterWorks Vibrometer is free to download, with in-app purchases available.

### Do smart or MeterWorks Vibrometer have ads?

Neither smart nor MeterWorks Vibrometer shows ads.

### Which is updated more often, smart or MeterWorks Vibrometer?

smart ships an update every 10 months, and MeterWorks Vibrometer every 2 weeks. Most recently, smart was updated on October 14, 2026 and MeterWorks Vibrometer on October 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*