Every iPhone needs a few good mastering box apps. We benchmark 250+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
Instantly transform your music into professional, radio-ready masters using advanced AI. This tool analyzes your tracks and allows you to communicate desired sound adjustments through text prompts, offering unlimited revisions and a variety of professional audio effects.
Enhance and maximize the volume of your audio recordings with an AI-powered algorithm. This app offers adjustable equalizers, genre-specific presets, and the ability to create AI videos and Reels. Export your mastered audio in various formats for professional-sounding results.
Audio Mastering - SoundBoost tops our mastering box apps ranking as of September 2026, with a 4.6-star average from 129 App Store ratings, and it's free to download.
Are there free mastering box apps for iPhone?
Yes — 20 of the top mastering box apps we rank are free to download, including Audio Mastering - SoundBoost and Final Bounce AI.
Does Audio Mastering - SoundBoost have ads or in-app purchases?
Audio Mastering - SoundBoost has no ads and offers in-app purchases, according to its App Store listing as of September 2026.
How many mastering box apps are on the App Store?
We track 250+ mastering box apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
What is SoundBoost's pricing structure?
SoundBoost offers a free tier with in-app purchases for its subscription plans. Options include Unlimited Mastering Weekly for $6.99, Monthly for $16.99, and Yearly for $49.99.
How does SoundBoost's AI mastering work?
SoundBoost's AI analyzes your music's unique characteristics to apply professional mastering. You can also communicate desired changes using text prompts, which the AI translates into mixing and mastering decisions.