Note Precision: Intervals vs SightSing

Note Precision: Intervals is an ear-training app for recognizing musical intervals with exercises adapted to each learner. Its ZDP engine models ability and selects exercises intended for a 65 to 85% success rate. The L.U.C.I.D. Journey has five progressive tiers, from the second to the octave, with spaced reviews. Learners receive interval-by-interval statistics, streaks, and success rates. The app runs on Android, iOS, and macOS, works offline, and requires no account or registration. Up to three profiles can be used on one device, and the app is available in 12 languages. Listed accessibility features include VoiceOver, increased contrast, color-independent cues, and a dark interface. On supported Apple devices, Apple Intelligence can analyze sessions on device and provide practice advice; sessions can also be added to the calendar. App data is stored on the device, with no tracking, advertising, third-party analytics, or crash-reporting service. Level 1 costs nothing; full unlock is €9.99 as a one-time purchase.

SightSing provides sight-singing practice with real-time microphone feedback and an 18-level curriculum. As you sing, each note is marked hit, miss, or off by a half step. Separate sight-singing, rhythm, and interval trainers track progress independently, with adaptive difficulty available. Each level introduces one concept and uses rolling-window mastery, so a missed day does not reset progress. The Free plan costs nothing, covers Levels 1–3, and requires no credit card. Monthly costs $4.99 a month; Annual costs $49 a year. Both paid plans include all 18 sight-singing levels, the rhythm and interval trainers, real-time feedback, practice streak and history, and cancellation anytime. Visitors can try a sample melody without signing up. Microphone audio is processed on the device and not recorded or transmitted; only the score is saved. Pitch accuracy depends on the device, microphone, ambient noise, and singing volume. SightSing is for ages 13 and up and is not a classroom product.