FixM4A vs Redo Calculator
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
FixM4A
This utility tool aims to recover unplayable M4A audio files corrupted by truncation or damage. It extracts and converts available data from damaged files to restore them. Users select the corrupted file and a similar good file to initiate the repair process.
- Repair truncated M4A files
- Recover corrupted audio
- Extract data from damaged files
- Convert restored audio
- User-friendly repair process
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This tool attempts to repair M4A audio files that are unplayable due to accidental truncation and corruption.Β It extracts and converts as much data as possible from the damaged audio to restore it. β How to use: 1. Select the 'Truncated M4A Audio' file. 2. Select a similar, good M4A audio file. 3. Click the 'Convert' button to begin the repair process.
Redo Calculator
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Redo Calculator lets you calculate confidently without worrying about mistakes. With full Undo and Redo support, you can easily correct inputs, and the screen-on feature ensures the display never turns off while calculating. Features - Undo & Redo for easy correction - Prevents screen from turning off during use - Clean, minimal design - Keeps your recent calculation history Simple, reliable, and focused β Redo Calculator helps you calculate without interruption.
Screenshots
Verdict
The clearest difference is in-app purchases: Redo Calculator at none against FixM4A's 1. Redo Calculator also leads on iOS requirement (13.0 vs 15.0). FixM4A's advantage is update cadence (every 4 days vs every 2 months). On price, ads and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. FixM4A sells 1 one-off in-app purchase. Redo Calculator asks for nothing beyond the download.
FixM4A ships an update every 4 days, Redo Calculator every 2 months. The most recent releases landed on October 19, 2026 and October 7, 2026 respectively.
| Parameter | FixM4A | Redo Calculator |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | β |
| Update frequency | Every 4 days β better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No β better |
| Monetization | Free with in-app purchases | β |
| Devices | iPhone, iPad, iPod β better | iPhone, iPod |
| Requires iOS | 15.0 | 13.0 β better |
| Further details β not scored | ||
| Size | 11 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Newkline Co., Ltd. | Seongmin Yim |
In-app purchases
FixM4A
- Fix M4A$3.99
Redo Calculator
No in-app purchases
Questions
Is FixM4A free?
Is Redo Calculator free?
Do FixM4A or Redo Calculator have ads?
Which is updated more often, FixM4A or Redo Calculator?
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