# FixYourDeck — Configure or diagnose audio

> Configure or diagnose audio (iPhone/iPad app by FixYourAudio s. r. o..)

- Source: https://appshunter.io/ios/app/fixyourdeck/id6801469759 (this page in markdown: same URL + `.md`)
- Developer: [FixYourAudio s. r. o.](https://appshunter.io/developer/6801469761)
- Category: Utilities, Music
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.0 · 10 MB
- Languages: American English, Czech, French (France), German (Germany), Hungarian, Italian, Japanese, Korean, Polish, Brazilian Portuguese and 6 more
- Released: 2026-10-08
- Data updated: 2026-10-10

## What is FixYourDeck?

FixYourDeck turns your iPhone and a class-compliant USB audio interface into a complete measurement bench for cassette decks — the instruments a service workshop used to need a rack for.

MEASURE
• Frequency response 20 Hz – 20 kHz, both channels, with -3 dB bandwidth and chain-baseline subtraction
• Wow & flutter to IEC 386 / DIN 45507 (weighted peak, weighted and unweighted RMS, wow/flutter split) with a flutter spectrum that names the worn rotating part
• Speed error and long-term speed drift
• Noise and signal-to-noise (flat, A-weighted, CCIR-468), MOL and SOL, dynamic range
• Azimuth with live level, phase and inter-channel timing meters — set the azimuth of discrete heads with ease, using the special azimuth test tape or any well-recorded prerecorded tape
• Diagnostics: modulation noise, crosstalk, erase efficiency, dropout counter

ALIGN
Guided assistants for bias (over-bias from the 10 kHz peak), record level / Dolby level, azimuth and playback alignment with a calibration tape — live meters you can turn a screwdriver against.

TEST ANY DECK, EVEN A WALKMAN
Record the self-describing Measurement Test Tape once on a good deck; each segment announces itself with a digital marker. Play it on any two-head deck or portable and the app grades frequency response, wow & flutter, speed drift and azimuth from playback alone — no monitoring head needed.

DOCUMENT
Every deck is a profile with its own calibration and saved sessions. Compare before and after service, and export one PDF — the Deck Measurement Protocol — with every value tabulated.

TOOLS
Oscilloscope (Y-T and Lissajous), tone generator, real-time 1/3-octave analyzer, level meters.

WHAT YOU NEED
A class-compliant USB audio interface with a stereo line input and output (e.g. a 2-in/2-out interface), cables to the deck's line in/out, and a blank tape. The speed check works with the built-in microphone alone.

FREE AND PRO
Speed and frequency measurement are free. FixYourDeck Pro — a one-time purchase, no subscription — unlocks all other measurements, the alignment assistants, diagnostics and protocol export.

Made by cassette-deck restorers, in 16 languages. No account, no analytics, no data collection: everything stays on your device.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| FixYourDeck Pro | $29.99 | one-time |


## Is FixYourDeck safe?

Not enough ratings yet to assess FixYourDeck.

## Is FixYourDeck legit?

FixYourDeck has limited verification signals. The AppsHunter Legitimacy Score for FixYourDeck is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-10-08

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-10.*