Questions and answers

Resona is an iPhone app and requires iOS 17 or later. Voice analysis runs on the device and doesn't need an internet connection; purchases, restoring purchases, iCloud sync and sending feedback do.

No. Resona doesn't use accounts. Optional iCloud sync (Pro) uses the Apple Account already on your iPhone.

Record the short baseline when you first open the app, then begin Week 1, Lesson 1 in your path. The Today tab suggests a short plan each day: your next lesson, a quick practice and a voice check-in.

The app follows your iPhone's language. Its interface, course navigation and exercise instructions are available in English, Simplified Chinese, Traditional Chinese, Spanish and French. Lesson explanations and reading passages are in English. You can also choose a language just for Resona in the iOS Settings app, under Resona › Language.

The microphone lets Resona measure your voice and make the recordings you choose to save. Analysis happens on your iPhone. If you declined access earlier, open the iOS Settings app, go to Privacy & Security › Microphone and turn on Resona.

Free forever: the real-time pitch and resonance meters, Week 1 of the course, starter drills, four Practice lab tools, 3 journal recordings and 7 days of progress history. Resona Pro adds all 12 weeks and future course updates, the full drill library, all ten Practice lab tools, unlimited journal entries, complete history, progress tools and optional private iCloud sync. Compare Free and Pro.

Pro is not a subscription. Resona Pro is a single one-time purchase processed by Apple. The current price is shown in the App Store and in the app, in your local currency.

Sign in with the same Apple Account, open Settings › Resona Pro in the app and tap Restore Purchases. You don't pay again.

No. Existing Pro purchases include the expanded course, the new Practice lab tools and future course updates.

Purchases are handled by Apple, so refunds are requested from Apple at reportaproblem.apple.com. We never receive your payment details.

iCloud sync is part of Pro and stays off until you turn it on in Settings › Data. Your training metrics, course reflections, journal metadata and saved journal audio then sync to your own private iCloud database, managed by Apple. Changing the setting takes effect after you restart the app, and turning sync off doesn't delete copies already in iCloud.

With Pro and iCloud sync on, practice sessions, course progress and journal recordings follow your Apple Account. For the records kept only on the device — routines, phrases, notes, check-ins, saved bands, calibration, reminder and privacy settings, measurements and Practice lab records — open Settings › Data › Backup & restore, create a backup file and restore it on the new iPhone. Restoring adds what's missing and keeps what's already there.

Delete journal entries and discard unsent drafts inside the app. Deleting the app removes its local data. If you used iCloud sync, manage or delete that data in your Apple Account settings. To delete usage statistics already sent, use Delete usage data sent from this iPhone in Settings › Where your data lives. To remove feedback you've already sent, email ketaiyun@gmail.com and include the report number if you have it.

Voice analysis runs on your device. Recordings stay in the app's private storage unless you turn on iCloud sync (Pro), which uses your own private iCloud, or you choose to share a recording or attach audio to a feedback report. Resona has no account, ads or third-party trackers. Usage statistics are optional and never include your recordings or audio. Read the privacy policy.

Yes. In Settings › Privacy you can lock Resona with Face ID, Touch ID or your passcode, use discreet notifications with a neutral “Daily check-in” message, and switch to a discreet app icon that looks like a plain notes app.

Move somewhere quieter and hold your iPhone about 20–30 cm from your mouth. Whispers and very breathy sounds have no pitch to read, so use an easy, voiced sound.

Resonance needs a clear vowel, so hold “ee” or “ah” for a second rather than speaking quickly. Changing vowels alone barely moves the meter by design — your lips, larynx and tongue position do. Calibrating in Settings fits the meter to your own vocal tract.

Bluetooth headset microphones send narrowband audio that lowers resonance and clarity accuracy, and Resona shows a hint when it detects one. For measurements, use the iPhone's built-in microphone and keep the phone at a steady distance.

Probably not. Voices vary with sleep, time of day, hydration and mood, and one session is just one data point — your weekly trend tells you more. If a number doesn't match what you hear, listen back to a journal recording: it's the most honest mirror.

Stop and rest. A gentle sigh, a minute of humming or lip trills and shorter sessions often help. If you feel pain, or hoarseness lasts more than two weeks, see an ENT doctor or a speech-language pathologist (SLP). Resona can't assess the health of your voice.

No. Resona is a training tool. It doesn't diagnose, treat or prevent any condition, and its readings aren't clinical measurements. You can use it alongside a voice coach or speech-language pathologist; with Pro, you can share a PDF progress report with them if you choose.

No. Resona doesn't give gender scores, ratings or verdicts. Its numbers describe sound — pitch, resonance and movement — compared with targets you choose. Voices overlap widely, and there's no single right sound.

Short and regular works best for most people: around 10–20 minutes on most days, with rest days. Several short sessions are kinder to your voice than one long one. The 12 weeks organize the material; they aren't a deadline or a promise of results.

Resona supports VoiceOver, Dynamic Type up to the largest accessibility sizes, and light and dark mode. Eyes-free cues use haptics, with VoiceOver announcements, when you drift out of your band; the focus view shows your pitch in large type; and you can turn on a bold pitch line or calm mode. If something is hard to use, please tell us.

Open Settings › Send feedback in the app. You can add screenshots, a screen recording or audio, and choose whether to include a recent diagnostics summary (off by default). Replies appear in Settings › My feedback. You can also email ketaiyun@gmail.com.