ToneAnchor vs GPMuse
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
ToneAnchor
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ToneAnchor is your reliable pitch companion for daily practice. Choose an arpeggio, set the octave, and shape the sound to fit your instrument or room. With quick key changes, tasteful timbre control, and responsive audio, it helps you center pitch fastβperfect for long tones and rehearsal tune-ups across strings, winds, brass, and voice.
GPMuse
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GPMuse is an intuitive music writing and notation tool for iOS. It provides a minimalist and smooth workspace, helping you quickly capture your musical ideas. KEY FEATURES: β’ Visual Notation: Add, delete, and edit notes directly on the staff. Flexibly switch between clefs (Treble, Bass, Alto...). β’ Diverse Rhythms: Customize the tempo of your score. Fully supports rhythms from basic to complex, including triplets. β’ Harmony & Key Signatures: Quickly set key signatures and insert accurate chord symbols above the staff. β’ Playback: Instantly play back your written score with high-quality audio to review your melodies. OPTIMIZED EXPERIENCE: β’ User-friendly interface, specially optimized for touch gestures on iPhone and iPad. β’ Full Dark Mode support to protect your eyes and improve focus. Terms of use: https://support.gpmuse.com/terms_of_use.html Privacy policy: https://support.gpmuse.com/privacy_policy.html
Screenshots
Verdict
The clearest difference is iOS requirement: GPMuse at 18.6 against ToneAnchor's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
ToneAnchor ships an update fortnightly, GPMuse every 2 weeks. The most recent releases landed on October 12, 2026 and October 24, 2026 respectively.
| Parameter | ToneAnchor | GPMuse |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly β better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 18.6 β better |
| Further details β not scored | ||
| Size | 27 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | Stefan Reich | Hung Truong Khanh |
In-app purchases
ToneAnchor
No in-app purchases
GPMuse
No in-app purchases









