# DroneTones: Pitch Reference > Sustained cello drone for tuning, intonation and ear training. No ads or limits. Canonical page: [https://chrome-stats.com/d/com.NguyenInDoubt.dronetones](https://chrome-stats.com/d/com.NguyenInDoubt.dronetones) ## Overview - **ID:** `com.NguyenInDoubt.dronetones` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** NguyenInDoubt - **Category:** EDUCATION - **Downloads:** 173 - **Version:** 1.4.4 - **Last updated:** 2026-08-26 - **First published:** 2026-08-07 - **Publisher country:** US - **Size:** 154 MB - **Data as of:** 2026-09-19 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.NguyenInDoubt.dronetones) - **Website:** [https://tnguyen2791.github.io/dronetones-site/](https://tnguyen2791.github.io/dronetones-site/) - **Privacy policy:** [https://tnguyen2791.github.io/dronetones-site/privacy](https://tnguyen2791.github.io/dronetones-site/privacy) ## Description A steady, warm cello drone to help you play in tune. Pick a note, press play, and tune your ear to a rock-solid reference pitch — for any instrument or voice.

Practicing with a drone is one of the most effective ways to fix intonation. Instead of chasing a needle on a tuner, you train your ear against a continuous, sustained reference tone and learn what "in tune" actually feels like. Scales, long tones, improvisation, warm-ups — a drone makes all of it sharper.

DroneTones gives you a rich, natural cello timbre across all 12 chromatic notes, in three octave registers, so the drone sits comfortably under whatever you play or sing.

WHO IT'S FOR
• Strings — violin, viola, cello and bass intonation
• Voice & choir — match pitch and hold a tonal center
• Brass & woodwinds — tune long tones against a reference
• Indian classical — use it as a simple tanpura or shruti box drone
• Bagpipes, hurdy-gurdy and other drone-based traditions
• Any musician working on playing in tune

FEATURES
• Warm, natural cello drone tones
• All 12 chromatic notes, in low, mid and high registers
• Sustained playback that keeps going as long as you practice
• Clean, distraction-free interface — pick a note and play
• Works fully offline, with no account and no sign-in
• Every note and register is unlocked — no time limits, no lock-outs
• An optional tip jar is the only in-app purchase, and it unlocks nothing

WHY A DRONE BEATS A TUNER
A tuner tells you that a note was wrong after you played it. A drone lets you hear it while you play. Holding a scale, an interval or a long tone against a steady reference pitch is how ear training actually happens — and it's how string players, singers and wind players have practiced intonation for generations.

No ads. No subscription. No account. Just a clean reference pitch whenever you need one. ## Rankings - #1,775,773 — Overall ## Permissions and access ### Permissions - `android.permission.ACCESS_NETWORK_STATE` - `android.permission.INTERNET` - `android.permission.POST_NOTIFICATIONS` - `android.permission.RECEIVE_BOOT_COMPLETED` - `android.permission.VIBRATE` - `com.NguyenInDoubt.dronetones.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION` - `com.android.vending.BILLING` ## Similar extensions and apps - [DroneTone Lite](https://chrome-stats.com/d/com.tuningtoolbox.dronetonetoolfree) — 7,601 users, 2.80 / 5 - [DroneTone Concertmaster](https://chrome-stats.com/d/com.tuningtoolbox.dronetonetoolpaid) — 1,054 users - [Infusion 415 – Tone Practice](https://chrome-stats.com/d/com.fdemoulin.infusion415) — 19 users - [Harmonics Practice](https://chrome-stats.com/d/org.tarmoj.harmonics) — 228 users - [Cello Tuner & Intonation](https://chrome-stats.com/d/com.wangyuehuishi.cellointonation) — 57 users - [Ear Train Tuner](https://chrome-stats.com/d/com.symphonymeld.eartrainingtuner) — 9 users - [Tuner and metronome: Melodrill](https://chrome-stats.com/d/com.plumillonforge.melodrill) — 218 users - [Stimmung: Tuner & Intonation](https://chrome-stats.com/d/com.pialon.stimmung) — 185 users - [EarTune - Pitch Ear Training](https://chrome-stats.com/d/com.eartune.mobile) — 655 users - [Oamn: Metronome, Tuner & Drone](https://chrome-stats.com/d/com.limsfam.oamn) — 23 users - [TuneMate](https://chrome-stats.com/d/com.ratsociety.tunemate) — 65 users - [Cello Tuner - Simple Tuner](https://chrome-stats.com/d/com.simpletoolsandtuners.cello.tuner) — 7,977 users, 3.75 / 5 --- Source: [Chrome-Stats](https://chrome-stats.com/d/com.NguyenInDoubt.dronetones)