MixMaster A/B vs Modsync
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MixMaster A/B
This app allows users to instantly compare two audio files side-by-side with synchronized playback and visual feedback. It's designed for music producers, audio engineers, and audiophiles to make critical listening decisions with precision.
- Instant A/B audio file switching
- Synchronized playback
- Waveform visualization
- Real-time spectrum analyzer
- Loop regions for focused listening
- Support for common audio formats
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COMPARE AUDIO FILES LIKE A PRO MixMaster A/B is the essential tool for anyone who needs to compare audio files with precision and confidence. Whether you're a music producer evaluating different mixes, an audio engineer comparing masters, or an audiophile testing file formats, MixMaster A/B gives you the tools to hear every difference. INSTANT A/B SWITCHING The heart of MixMaster A/B is its seamless switching between two audio files. Load your files, hit play, and toggle between A and B instantly—no interruption, no delay, perfectly synchronized. This is how professionals make critical listening decisions. VISUAL FEEDBACK • Waveform Visualization: See the amplitude and dynamics of both files at a glance • Real-time Spectrum Analyzer: Watch the frequency content as your audio plays • Side-by-side Comparison: Visual confirmation of what your ears are hearing PRECISION PLAYBACK CONTROLS • Loop Regions: Focus on specific sections that matter most • Synchronized Playback: Both files stay perfectly in sync when switching • Instant Toggle: Switch between A and B with a single tap • Pause, Play, Repeat: Full control over your listening session PERFECT FOR: Music Producers • Compare different mix versions • Evaluate mastering changes • Test compression and EQ settings • Make confident final decisions Audio Engineers • Compare before/after processing • Evaluate different mastering approaches • Test format conversions • Quality control checks Audiophiles • Compare file formats (MP3 vs. FLAC vs. WAV) • Test different rips or sources • Evaluate audio quality • Settle debates with data Content Creators • Compare audio edits • Test different export settings • Evaluate noise reduction • Choose the best take WHY MIXMASTER A/B? Traditional audio comparison means switching between apps, losing your place, and relying on memory. MixMaster A/B eliminates the guesswork with instant, synchronized switching and visual feedback. You'll hear differences you never noticed before. SIMPLE, FOCUSED, POWERFUL We built MixMaster A/B to do one thing exceptionally well: compare audio files. No bloated features, no complicated workflows—just load two files and start comparing. The interface is optimized for one-handed use in portrait mode, perfect for quick comparisons on the go. SUPPORTED FORMATS • MP3 • M4A / AAC • WAV • AIFF • And other common audio formats PRIVACY FIRST • All processing happens on your device • No audio files uploaded to servers • Your audio stays private NOW COMPLETELY FREE! PROFESSIONAL RESULTS, MOBILE CONVENIENCE Whether you're in the studio, at home, or on the go, MixMaster A/B gives you professional-grade A/B comparison in your pocket. Make better decisions, hear more detail, and trust your ears. Download MixMaster A/B today and discover what you've been missing.
Modsync
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Make your modulations groove with your music. When your LFO rate matches your track's tempo, modulations rise and fall naturally with the beat. This creates tighter, more musical movement where the modulation enhances the rhythm instead of fighting it. Modsync calculates LFO frequencies in Hz instantly based on your BPM and note division. Just copy the values into your synth or plugin. FEATURES - Instant tempo-synced LFO calculations - 6 rhythmic divisions from whole notes to 1/32 - Straight, dotted, and triplet variations - One-tap copy to clipboard - Beautiful, minimalist interface - Haptic feedback - Works completely offline PRO TIP With iCloud Universal Clipboard enabled, tap any value on your iPhone and paste it directly into your synth or DAW on Mac. No typing required. Perfect for music producers, sound designers, and synth enthusiasts who want their modulations to feel musical, not random. Made with love by AKER.
Screenshots
Verdict
The clearest difference is in-app purchases: Modsync at none against MixMaster A/B's 1. Modsync also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. MixMaster A/B sells 1 one-off in-app purchase. Modsync asks for nothing beyond the download.
| Parameter | MixMaster A/B | Modsync |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 6 weeks | — |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 14.0 |
| Further details — not scored | ||
| Size | 30 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Nicholas McLaren | AKER SARL |
In-app purchases
MixMaster A/B
- Remove Ads$12.99
Modsync
No in-app purchases








