# Vibroscope vs Molecular Weight Calculator

The clearest difference is price: Molecular Weight Calculator at $2.99 against Vibroscope's $7.99. Molecular Weight Calculator also leads on device support (3 vs 1) and iOS requirement (13 vs 26.0). Vibroscope's advantage is update cadence (every 8 months vs every 29 months). On rating, ratings volume, ads and in-app purchases there is nothing between them.

Vibroscope costs $7.99 and Molecular Weight Calculator $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Vibroscope against 5.0 for Molecular Weight Calculator. Both are backed by a comparable volume of ratings — 2 and 3 respectively.

Vibroscope ships an update every 8 months, Molecular Weight Calculator every 29 months. The most recent releases landed on October 21, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Vibroscope | Molecular Weight Calculator |
| --- | --- | --- |
| Price | $7.99 | **$2.99** |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/vibroscope/id1034169622/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/molecular-weight-calculator/id1444836038/reviews) |
| Number of ratings | 2 | **3** |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 29 months |
| Monetization | Paid | Paid |
| Size | 1 MB | 1 MB |
| Requires iOS | 26.0 | **13** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [TOON,LLC](https://appshunter.io/developer/633948723) | [Nitrio](https://appshunter.io/developer/321121189) |

## What reviewers say

### Vibroscope

[App page](https://appshunter.io/ios/app/vibroscope/id1034169622)

This tool uses your device's accelerometer to analyze vibrations in real-time, even those inaudible to humans. It visualizes acceleration data and offers FFT analysis for frequency components, with options to log measurements.

**Highlights:** Real-time vibration measurement, Inaudible vibration detection, Two-axial coordinate display, Time-axis waveform display, FFT analyzer for frequency components, Data logging to text files, Snapshot of measurement screen

**In-app purchases:** none


### Molecular Weight Calculator

[App page](https://appshunter.io/ios/app/molecular-weight-calculator/id1444836038)

This tool calculates the average molecular weight of molecules using their chemical formulas. It offers instant results, supports high precision, and is optimized for everyday use on iOS devices. The app prioritizes user privacy and is ad-free.

**Highlights:** Instant molecular weight calculation, Copy results to other apps, Includes formula references, Supports up to 16 decimal places, Works on iPhone and iPad, Ad-free and privacy-focused

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

**In-app purchases:** none


## Frequently asked questions

### Is Vibroscope free?

Vibroscope costs $7.99, with no in-app purchases.

### Is Molecular Weight Calculator free?

Molecular Weight Calculator costs $2.99, with no in-app purchases.

### Which has better reviews, Vibroscope or Molecular Weight Calculator?

Vibroscope and Molecular Weight Calculator are both rated 5.0 out of 5 on the App Store, from 2 and 3 ratings respectively.

### Do Vibroscope or Molecular Weight Calculator have ads?

Neither Vibroscope nor Molecular Weight Calculator shows ads.

### Which is updated more often, Vibroscope or Molecular Weight Calculator?

Vibroscope ships an update every 8 months, and Molecular Weight Calculator every 29 months. Most recently, Vibroscope was updated on October 21, 2026 and Molecular Weight Calculator on October 15, 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.*