# Vibroscope vs RFCReader Pro

The clearest difference is price: RFCReader Pro at $1.99 against Vibroscope's $7.99. RFCReader Pro also leads on review sentiment (63% vs 40%) and update cadence (every 3 months vs every 8 months). Vibroscope's advantage is chart position (#128 vs unranked). On ads, in-app purchases, monetization model and device support there is nothing between them.

Vibroscope costs $7.99 and RFCReader Pro $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Vibroscope ships an update every 8 months, RFCReader Pro every 3 months. The most recent releases landed on September 18, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Vibroscope | RFCReader Pro |
| --- | --- | --- |
| Price | $7.99 | **$1.99** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/vibroscope/id1034169622/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 40.0% of reviews | **62.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 months** |
| Monetization | Paid | Paid |
| Best chart rank | **#128** | — |
| Size | 1 MB | 3 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [TOON,LLC](https://appshunter.io/developer/633948723) | [飞 龙](https://appshunter.io/developer/965611281) |

## What reviewers say

### Vibroscope

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

**Currently charting:** #128 Top Paid · Utilities (US App Store)

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


### RFCReader Pro

[App page](https://appshunter.io/ios/app/rfcreader-pro/id1036461920)

Access and read technical internet standards documents efficiently. Features include keyword search, bookmarking, text styling, and offline reading. Supports PDF and HTML formats with navigation aids.

**Highlights:** List all RFC documents, Search RFC by keywords or number, Add RFC to favorites, Mark and style text, Offline RFC reading, Read RFC in PDF and HTML formats, Navigate via Table of Contents and thumbnails

**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 RFCReader Pro free?

RFCReader Pro costs $1.99, with no in-app purchases.

### Do Vibroscope or RFCReader Pro have ads?

Neither Vibroscope nor RFCReader Pro shows ads.

### Which is updated more often, Vibroscope or RFCReader Pro?

Vibroscope ships an update every 8 months, and RFCReader Pro every 3 months. Most recently, Vibroscope was updated on September 18, 2026 and RFCReader Pro on October 2, 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.*