Noteon vs SightPiano
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Noteon
This app listens to single notes played into your device's microphone and displays the detected note as a large, full-screen letter with a unique color background. It's ideal for musicians practicing, teaching, or using a device as a dedicated note monitor.
- Real-time note detection
- Large full-screen display
- Color-coded notes
- Simple, clutter-free design
- Screen stays awake
- Supports various instruments
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Noteon is a simple, bright note detector for musicians. Open the app, allow microphone access, and play a clear single note. Noteon listens in real time and displays the detected note as a large letter on a full-screen color background, making it easy to read while practicing, teaching, tuning, or using an older iPhone as a dedicated note monitor. Noteon works with violin and other instruments that produce a clear single pitch, including guitar, piano, voice, and more. Features: • Real-time note detection through the microphone • Large full-screen note display • Unique background colors for each note • Simple design with no clutter • Keeps the screen awake while the app is open • Great for practice rooms, lessons, and reuse of old iPhones Noteon is designed for clear single notes. Chords, noisy rooms, or very fast passages may affect detection. Support: https://chase-on.com/pages/checkon-core-app-contact Privacy Policy: https://chase-on.com/pages/noteon-current-note-detector-privacy-policy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
SightPiano
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SightPiano is a notation-first piano-learning app for beginners. Learn from real sheet music on a digital piano or MIDI keyboard, with instant feedback on every note and its timing. Build core piano skills as you learn from music — not by following falling-note games. Choose structured method courses, train one hand at a time, and see exactly where your playing needs work. Start free with about a month of real method repertoire — often more — across three classical method paths. No account, no trial clock; every feature is permanently unlocked at no cost during the free foundation. WHY IT’S DIFFERENT Real notation, not diagrams. Every piece is full sheet music, read the way a musician reads it. The beat never stops. Metronome on by default; every note is judged for timing as well as pitch. You track your own position on the page. No bouncing ball, no auto-scroll — the skill a real sight-reader needs. No upsell modals, no locked-until-you-pay progression on the free foundation. Payment expands content, not the practice system. THE SIGHT- PRACTICE PIPELINE Sight-reading is five skills in sequence, and SightPiano trains all five, in order: Hear it first — SightPlay highlights each note as reference audio plays, with a visible beat and human (non-mechanical) timing. Play it through, off the clock — SightTrace colors every note green or red the instant you strike it, looping until you clear the passage. Read ahead, off the clock — SightPeek lets you preview the next measure at your own pace. Read ahead, at tempo — SightAhead runs the same drill under real tempo pressure. Get the truth immediately — SightMark and SightError show exactly what landed and where the misses went. A PROGRESSIVE CURRICULUM Choose from three historical method paths to intermediate playing — the balanced German Path (Beyer, Burgmüller, Czerny), the lyrical French Path (Le Couppey), or the technical Viennese Path (Czerny) — plus Hanon, SightJazz, and SightPops. The beginner foundation of every path is free, permanently, with every feature enabled — about a month of practice for most learners, often more. BUILT-IN PRACTICE TOOLS SightMastery and SightTrend track real progress across months, not minutes. SightRight/SightLeft isolate a hand. SightDyna shows touch evenness. SightJuke turns a songbook into a jukebox — pick a first and last piece and SightPiano performs the whole range hands-free, with optional repeat. SightCade turns nine retro arcade games into focused drills on rhythm, pitch, hand independence, dynamics, memory, and chord leaps — including ChordRally, which steers with block chords. SightMaestro is an optional AI practice coach — bring your own API key and pay your provider directly, at wholesale, instead of a subscription markup. A NOTE ON HARDWARE For the full real-keyboard feedback experience, connect a digital piano or MIDI keyboard by wired USB. Bluetooth MIDI and acoustic-piano input are not currently supported. The app also includes a virtual piano for a quick try without MIDI hardware. Built and maintained by one person. Feedback goes straight to the developer, not a support queue.
Screenshots
Verdict
The clearest difference is in-app purchases: Noteon at none against SightPiano's 1. SightPiano's advantage is update cadence (every 4 days vs fortnightly). 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
Both are free to download. SightPiano sells 1 in-app purchase, starting at $0.99 per month. Noteon asks for nothing beyond the download.
Noteon ships an update fortnightly, SightPiano every 4 days. The most recent releases landed on September 17, 2026 and September 20, 2026 respectively.
| Parameter | Noteon | SightPiano |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Fortnightly | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod, Apple Watch | iPhone, iPad, iPod, Mac |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 7 MB | 536 MB |
| Age rating | 4+ | 4+ |
| Developer | Anthony Chase | Original Device LLC |
In-app purchases
Noteon
No in-app purchases
SightPiano
- Continued Study$0.991 Month









