# Sostenuto: Music Practice — Practice Journal, Log & Coach > Music practice system using spaced repetition and AI for repertoire retention. (iPhone/iPad app by Valerio De Feo.) - Source: https://appshunter.io/ios/app/sostenuto-music-practice/id6760582882 (this page in markdown: same URL + `.md`) - Developer: [Valerio De Feo](https://appshunter.io/developer/1885163113) - Category: Music, Education - Price: Free with in-app purchases - Rating: 3.00/5 from 2 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 16.4 · 65 MB - Languages: American English, French (France), German (Germany), Italian, Japanese, Korean, European Portuguese, Chinese (Simplified, China), European Spanish - Released: 2026-03-28 - Data updated: 2026-07-23 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/sostenuto-music-practice/id6760582882/reviews.md ## What is Sostenuto? Build a Repertoire You'll Never Forget. Stop learning songs just to forget them two weeks later. Sostenuto is the first music practice system built on the science of the Forgetting Curve and Spaced Repetition (SRS). Most musicians spend 80% of their time relearning what they've already studied. Sostenuto flips the script. Our intelligent scheduling system tells you exactly WHAT to practice and WHEN - right before your brain is about to forget it. Meet Maestro AI, your personal practice coach. Maestro analyzes your study logs and gives you targeted advice based on your real data - not generic tips. THE SOSTENUTO METHOD: 1. ADD: Catalog the songs, scales, or phrases you want to master. 2. PRACTICE: Use the built-in session tracker and capture audio/video for self-critique. 3. RETAIN: Our SRS algorithm schedules your reviews so your progress compounds daily. FEATURES: - Intelligent Daily Practice Schedule - AI Practice Coach (Maestro) - Repertoire Management for all instruments - BPM Tracking (current vs. target) - Audio & Video Practice Recording - Practice Streaks & Gem Achievements - Sheet Music Storage - Optimized for Guitarists, Pianists, and Multi-instrumentalists Don't just practice. Build a repertoire that's yours forever. Privacy Policy: https://sostenuto.app/privacy-policy Terms of Service: https://sostenuto.app/terms-of-service Standard Apple EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Key features - Intelligent practice scheduling - AI practice coach - Repertoire management - Audio/video recording - Practice streaks and achievements - Sheet music storage ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Sostenuto Pro Annual | $29.99 | per year | | Sostenuto Pro Monthly | $4.99 | per month | ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/sostenuto-music-practice/id6760582882/reviews.md ### 5/5 — Finally a scientific method for studying! *2026-04-14* I’ve always struggled to keep all the pieces in my repertoire in mind, spending hours reviewing things I already knew and forgetting the more difficult ones. Sostenuto has changed everything. The spaced repetition system (SRS) is incredible: the app tells me exactly what to review and when, optimizing my time. It also includes everything a musician needs—tuner, metronome, and all the tools to easily add, organize, and save your progress. Essential for any serious musician. ## Frequently asked questions about Sostenuto ### How does Sostenuto use spaced repetition? Sostenuto employs a Spaced Repetition System (SRS) algorithm that schedules your reviews of songs, scales, or phrases right before your brain is likely to forget them, maximizing retention. ### What is Maestro AI in Sostenuto? Maestro AI is your personal practice coach within Sostenuto. It analyzes your study logs and provides targeted advice based on your real practice data to help you improve. ### Can Sostenuto help with different instruments? Yes, Sostenuto's repertoire management is designed for all instruments and is specifically optimized for guitarists, pianists, and multi-instrumentalists. ### Does Sostenuto offer a free trial for its Pro plans? Yes, both the Sostenuto Pro Monthly and Sostenuto Pro Annual plans include a 7-day free trial, allowing you to experience the premium features before committing. ### What are the subscription costs for Sostenuto Pro? Sostenuto Pro Monthly is $4.99 per month, and Sostenuto Pro Annual is $29.99 per year. Both plans offer a 7-day free trial. ### How often is Sostenuto updated? The app was last updated on April 23, 2026, with version 1.3.0. This indicates a relatively recent update, suggesting ongoing development and support. ### What devices is Sostenuto available on? Sostenuto is available on iPhone and iPad, making it accessible to a wide range of Apple users. ### What is the age rating for Sostenuto? Sostenuto has an age rating of 4+, meaning it is suitable for users of all ages, with no mature content concerns. ## Version history (last 5 releases) ### 1.5.0 — 2026-07-21 This update is all about polish: • Bug fixes and stability improvements • UI refinements for a smoother practice experience Thank you for using Sostenuto! ### 1.4.0 — 2026-06-30 This update is all about polish: • Bug fixes and stability improvements • UI refinements for a smoother practice experience Thank you for using Sostenuto! ### 1.3.0 — 2026-04-23 Sostenuto 1.3 — Practice without friction This release is all about getting out of your way. We've removed every barrier between you and your session. Play more. Tap less. Spotify Smart Add Adding a piece is now instant. Search the Spotify library directly from Sostenuto and we'll pull the cover art, title, composer, and metadata in seconds. Your repertoire has never looked this good. Rebuilt chromatic tuner and extended instrument support Our built-in tuner has been rebuilt from the ground up — blazing fast and physics-grade accurate. It now automatically detects your primary instrument (Guitar, Bass, Violin, Cello, Ukulele) and locks in pinpoint precision without ever pulling you out of your session. Maestro Session Architect Maestro AI just got a major upgrade. Ask it to build a practice plan or diagnose a technical problem, and it will read your recent session history and BPM targets to design a fully personalized 3-Phase Practice Routine — Stability, Pattern, and Transfer. Deep repertoire classification Tag your pieces with rich metadata: Album, Genre, and Historical Context or Tuning. Whether you have 20 pieces or 200, your library stays effortlessly organized. Now in your language Sostenuto is now fully natively translated. Alongside our core languages, we're thrilled to welcome complete support for Portuguese, Japanese, and Korean. ### 1.2 — 2026-04-11 Sostenuto v1.2.0: Update & Refinements This update brings a major boost to our practice engine and overall app experience: Gems & Achievements: Collect gems and unlock new milestones as you practice! Our updated achievement system now better tracks your dedication and progress. Smarter Engine: Improved spaced-repetition logic for better long-term progress tracking and fairer review intervals. Visual Polish: Refined Light Mode aesthetics and enhanced "Glass" design elements throughout the app. Performance & Stability: General bug fixes, faster theme switching, and a smoother purchase restoration flow. Thanks for practicing with Sostenuto! ### 1.0 — 2026-03-28 No release notes. --- *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 2026-07-23.*