# Vibration Meter vs Lexcalc Pro

The clearest difference is in-app purchases: Lexcalc Pro at none against Vibration Meter's 2. Lexcalc Pro also leads on update cadence (every 3 days vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Vibration Meter sells 2 in-app purchases, starting at $4.99 per 7 days. Lexcalc Pro asks for nothing beyond the download.

Vibration Meter ships an update every 3 months, Lexcalc Pro every 3 days. The most recent releases landed on October 10, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Vibration Meter | Lexcalc Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 days** |
| Size | 2 MB | 18 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Anton Ryskalev](https://appshunter.io/developer/1884862763) | [SM SRL](https://appshunter.io/developer/1543694717) |

## What reviewers say

### Vibration Meter

[App page](https://appshunter.io/ios/app/vibration-meter-emf-meter/id6760539858)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $4.99 | per 7 days |
| Pro Annual | $29.99 | per year |


### Lexcalc Pro

[App page](https://appshunter.io/ios/app/lexcalc-pro/id6764299701)

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

**In-app purchases:** none


## Frequently asked questions

### Is Vibration Meter free?

Vibration Meter is free to download, with in-app purchases available.

### Is Lexcalc Pro free?

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

### Do Vibration Meter or Lexcalc Pro have ads?

Neither Vibration Meter nor Lexcalc Pro shows ads.

### Which is updated more often, Vibration Meter or Lexcalc Pro?

Vibration Meter ships an update every 3 months, and Lexcalc Pro every 3 days. Most recently, Vibration Meter was updated on October 10, 2026 and Lexcalc Pro on October 8, 2026.

---

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