Comparison

Sostenuto vs Orchestra Audition Prep

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Sostenuto

This app helps musicians build a lasting repertoire by using spaced repetition and AI coaching. It intelligently schedules practice sessions to combat forgetting and provides personalized feedback based on your progress.

Highlights
  • Intelligent practice scheduling
  • AI practice coach
  • Repertoire management
  • Audio/video recording
  • Practice streaks and achievements
  • Sheet music storage
Features
Read full description

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/

About

Orchestra Audition Prep

Features
Read full description

Audition Prep by Pultfrei is a local-first preparation tool for classical musicians preparing orchestra auditions. When you prepare several auditions at once, things get messy fast: excerpt lists from job postings, set pieces, overlapping excerpts, sheet-music PDFs, reference recordings, your own takes and practice notes end up scattered everywhere. Audition Prep brings this preparation together in one clear workflow. You create your auditions, import or enter the excerpt list, and grade every excerpt A/B/C. The app recognizes identical or similar excerpts across auditions — so you instantly see which excerpts count more than once and where practice time has the biggest leverage. For every excerpt you can collect sheet music, PDFs, photos, tempo, reference links, notes, sessions and recordings. Build rounds and play them in audition mode. Especially on iPad, this mode is made to put the device on your music stand, start a round and move from excerpt to excerpt. Preparation is more than playing. The Performance module brings together mental and physical preparation for auditions, solos, concerts and exams: start with what is going on right now – tight while practising, shaking hands, racing thoughts – and get fitting exercises: breath reset, centering, muscle relaxation, imagery with your own excerpts, mock auditions in steps. Every exercise is guided, with animations and spoken guidance or text step by step. Programs take you up to your date, the methods atlas grades fifteen methods honestly by their evidence, and a tension check-in before and after each exercise shows what helps you. Built-in tuner, metronome with per-excerpt tempo steps, and a recorder are one tap away. A daily practice plan adapts to how many days remain until your audition. Audition Prep is not a generic practice app, not a sheet-music app and not an audio-analysis app. The focus is audition preparation: structure your repertoire, see your priorities and practice in the right context. Key features - Prepare multiple auditions in parallel. - Paste excerpt lists from audition postings or enter them manually. - See overlapping excerpts across auditions at a glance. - A/B/C status, due dates and progress per excerpt. - Set pieces and concertos integrated into your preparation. - Store PDFs, photos and sheet music locally per excerpt. - Reference links to YouTube, Spotify, Apple Music or the web per excerpt. - Build rounds and practice them in audition order. - iPad audition mode focused on sheet music, advancing excerpt by excerpt. - Adaptive daily practice plan based on your audition countdown. - Performance: guided exercises against tension, with animations and spoken guidance. - Programs up to your date (five days, four or eight weeks) and a methods atlas with sources. - Daily evidence-based practice tip with sources. - Tuner (adjustable reference pitch, transposing display), metronome and recorder built in. - Daily practice reminders, scheduled locally on your device. - Local-first: no accounts, no tracking, no server-side storage by us. Privacy Audition Prep stores your content locally on your device. There are currently no user accounts, no external analytics, no tracking and no ads. Manual backups export metadata; local sheet music/PDFs/images/recordings stay on your device.

Screenshots

Sostenuto4 screens
Orchestra Audition Prep4 screens

Verdict

The call

The clearest difference is in-app purchases: Orchestra Audition Prep at none against Sostenuto's 2. Sostenuto's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Sostenuto sells 2 in-app purchases, starting at $4.99 per month. Orchestra Audition Prep asks for nothing beyond the download.

UpkeepUpdate frequency

Sostenuto ships an update every 3 weeks, Orchestra Audition Prep every 2 months. Both last shipped on October 31, 2026.

Scorecard2 real differences · 8 level
Sostenuto versus Orchestra Audition Prep: the parameters behind the verdict, then further details
ParameterSostenutoOrchestra Audition Prep
PriceFreeFree
Rating3.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.415.1 — better
Further details — not scored
Size54 MB35 MB
Age rating4+4+
DeveloperValerio De FeoMario Grunkorn

In-app purchases

2 purchases

Sostenuto

Subscriptions2
  • Sostenuto Pro Monthly7 Days trial$4.991 Month
  • Sostenuto Pro Annual7 Days trial$29.991 Year
None

Orchestra Audition Prep

No in-app purchases

Questions

Is Sostenuto free?
Sostenuto is free to download, with in-app purchases available.
Is Orchestra Audition Prep free?
Orchestra Audition Prep is free to download, with no in-app purchases.
Do Sostenuto or Orchestra Audition Prep have ads?
Neither Sostenuto nor Orchestra Audition Prep shows ads.
Which is updated more often, Sostenuto or Orchestra Audition Prep?
Sostenuto ships an update every 3 weeks, and Orchestra Audition Prep every 2 months. Most recently, Sostenuto was updated on October 31, 2026 and Orchestra Audition Prep on October 31, 2026.

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