Random Sound Recorder vs EarMaster
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Random Sound Recorder
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‘Random Sound Recorder’ serves as a satellite application to ‘Acaan Trainer’, ‘Stack Trainer’, ‘Twice as Hard Trainer’, ‘Serial Sum Trainer’, and ‘Random Input’ which represent the single most unified set of technical learning tools for close-up magicians. These apps are available by this developer. ‘Random Sound Recorder’ allows to record sound files in caf-format (Apple Core Audio Format, caf) according to the four suits, the ace, the three court cards and values from 2 to 9. Also all numbers can be recorded to allow for the 52 positions in a deck. The created caf-files serve as sound files for the above mentioned apps. Once recorded, the sound files can be moved to their final destination in the other apps' documents folder.
EarMaster
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Ready to develop "golden ears" like a pro audio engineer? Whether you're a music producer, audio enthusiast, or a student dedicated to improving your listening skills, EarMaster is your personal, pocket-sized ear training coach. We skip the dry theory and get straight to what matters. Through a series of carefully designed interactive training and evaluation modules, you'll master the two most critical skills in audio production: Frequency Recognition and Dynamics Processing. 【KEY FEATURES】 **Frequency Training** * Build your intuition for the audio spectrum, from the 6 fundamental bands to hundreds of advanced frequency points. * Learn to identify and distinguish the "punch" of sub-bass, the "core" of vocals in the mids, and the "air" of the high frequencies. **Dynamics Training** * Deep dive into the four essential parameters of a professional compressor: Threshold, Ratio, Attack, and Release. * Through comparative listening, learn how different settings can shape the punch, breath, and tightness of any sound. **NEW! Explore Mode** * Your personal sound laboratory! Tweak all compressor parameters in real-time within a professional-grade interface. * Visualize the changes with a live transfer curve graph and an accurate gain reduction meter. * Experiment freely on looping audio sources to perfectly connect theory with practice. **Evaluation & Records** * Test your skills with ABX-style quizzes and challenge your listening acuity. * Receive detailed reports with accuracy, response time analysis, and your most common mistakes to pinpoint areas for improvement. * Track all your training and evaluation sessions to see your progress over time. 【WHO IS IT FOR?】 * Music Producers & Mixing Engineers * Podcasters & Video Editors * Audiophiles & Hi-Fi Enthusiasts * Music & Audio Technology Students * Anyone who wants to sharpen their critical listening skills. Download EarMaster now and start your professional ear training journey. Turn your ears into your most powerful tool!
Screenshots
Verdict
The clearest difference is ads: Random Sound Recorder at none against EarMaster's shown. Random Sound Recorder also leads on device support (3 vs 1) and iOS requirement (11.0 vs 17). EarMaster's advantage is update cadence (every 2 days vs every 9 months). On price and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Random Sound Recorder ships an update every 9 months, EarMaster every 2 days. The most recent releases landed on September 18, 2026 and September 8, 2026 respectively.
| Parameter | Random Sound Recorder | EarMaster |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 months | Every 2 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 11.0 — better | 17 |
| Further details — not scored | ||
| Size | 0 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Ralph Cos | CHUN-MING LIN |
In-app purchases
Random Sound Recorder
No in-app purchases
EarMaster
No in-app purchases
Questions
Is Random Sound Recorder free?
Is EarMaster free?
Do Random Sound Recorder or EarMaster have ads?
Which is updated more often, Random Sound Recorder or EarMaster?
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