Features: free web vs Pro

Chromatic auto-detect with note, octave, cents, and Hz. Color feedback locks green near in-tune; the gauge updates smoothly with low jitter. Free online in the browser; full transposition + MM Mode on iPhone.

• Key / transposition — concert or common band & orchestra keys so the display matches your written part.
• Tone / drone — sustain a reference pitch (with optional fifth). Voices: Pure, Warm, Reed. Octave − / +.
• A4 calibration — reference pitch 415–466 Hz in Settings.
• Input meter — signal strength and live dBFS (0 = digital max; normal levels are negative), plus a clear no-signal state. Mic processing is optimized for pitch accuracy.

Solid practice click with tempo wheel and common meters free in the browser. iPhone adds full meter feels, mixed-meter maps on a shared eighth pulse, click export, and Live Activities.

• Free web — tempo, tap tempo, 2/4 · 3/4 · 4/4 · 6/8, loud clean click. No account.
• iPhone free — tempo, meters, feel options, accents, subdivision, practice timer.
• Map (mixed meter) · Pro — loop bars with different signatures on a shared eighth-note pulse (♪). Per-bar repeats (×1–×8), save maps, live bar strip.
• Export click track · Pro — WAV / MIDI / map file share pack for GarageBand, DAWs, and band practice.
• Subdivision — labels match the meter (x/4: Beat · 8ths · Triplets · 16ths; x/8: 8ths · 16ths · Triplets · 32nds).
• Accents — tap pads to weight beats; stronger on group heads and map accents.
• Across tabs — start the click, then use Tuner, Record, or Journal; status chip stays available.
• Practice timer — global session timer from every tab.

Practice recordings on iPhone — stay on this device. Clear capture modes, library tools, and a focus player that doesn’t fight your scroll. (Not on the free web marketing tools.)

• Record — manual start/stop with level meter and waveform while capturing.
• Auto-record — hands-free: listens for you, records the phrase, stops after silence. Distinct from Autoplay.
• Autoplay — after a recording saves, plays it back for review (works after manual or auto capture). Optional; leave off for silent capture only.
• Library — star recordings, All / ★ filter, swipe left to delete (hint stays pinned under the list), bulk select for export/delete, A/B compare (chip + guided pick 2).
• Focus player — mid-screen glass card with soft dim: play/pause, scrub, −5s, share, and A|B switch when comparing. Stays until you dismiss so you can re-listen.
• Metronome + record — run the click or drone while recording; screen stays awake during Auto-record.
• Quality — AAC/MP4 when supported for best mobile quality and sharing.

Lean practice journal on iPhone — streak, week dots, full-screen editor. Compact chrome so the list stays primary.

• Streak & week — compact streak hero, seven day dots, collapsible “This week” with days / minutes / recordings and a weekly day goal (Off · 3–7d).
• Search & filter — search beside All / ★ on one row.
• Entries — title, rich text (bold, lists, headings), mood, minutes, linked recording, photo, voice memo, location. Prompts and draft autosave for new entries.
• Star & share — favorites and system share when available (desktop and mobile).
• Delete — swipe left or delete from the editor. Linked recordings stay in Record.

Free music theory and ear training for grades 6–12. Skills match contest types with original drills — never copied exams. Free samples in the browser; full paths and catalog on iPhone with Pro.

• Free web samples — short ear / theory / rhythm path at /hykom, no account.
• Grade bands · Pro path — 6–8 · 9–10 · 11–12 change difficulty and recommended order on iPhone.
• Path — ordered units in stages (see → rhythm → meter → harmony → produce); mastery from recent fluency. Continue is primary; reset under the checklist (type RESET).
• Ear — intervals, scales, chords, meter, pitch match, melodic dictation.
• Rhythm — name a pattern or tap it back.
• Theory — note reading, triads on staff, keys, scales, terms, transposition.
• Guide — paths and classroom tips.

Move to a new iPhone without losing your library.

• Export all — settings (including maps), journal, and recordings.
• Import — restore elsewhere; store the file in iCloud Drive, Files, or Google Drive yourself.
• Map click tracks — export WAV / MIDI / map file from Metronome without a full backup (see Sharing).
• Reminders — occasional toast to export after you’ve been practicing.

• Share practice cents — app link from Settings.
• Share HYKOM progress — one text line (mastered units / %) for parents or teachers.
• Share a recording — system sheet for audio files; also from the focus player.
• Share a journal entry — text plus media when supported.
• Share a click track — WAV / MIDI / map pack from Metronome → Map → Export (GarageBand, DAW, or bandmates).
• Add to Home Screen — install guide in Settings (iOS & Android).

Microphone audio is processed on your device. We do not upload your recordings or journal.

• Optional analytics (page views) may run if configured; practice media stays local.
• Export is under your control — you choose where the backup goes.
• Location — only if you tap GPS on a journal entry; never background tracking.
• Clearing site data removes local data — export first if you care about it.
• Full policy: Privacy Policy.