Privacy Policy

Last updated: 31 July 2026

StageOn is a stage companion app for musicians. Most of what you do in it — your songs, setlists, layouts and settings — is stored only on your own device. Everything below describes the specific cases where data leaves your device, and every one of those is either something you switch on yourself or something you trigger by using a particular feature.

We do not sell your data, we do not share it with advertisers, and there is no advertising in the app.

1. What stays on your device

Your song library, setlists, chord and lyric text, performance notes, tags, stage layouts, transpose and tempo settings, chord notation preference, display settings and language are stored locally on your device. If you never sign in and never use the sharing, search or feedback features, this information never leaves your device.

2. Account (optional)

You can use StageOn without an account. Creating one is only required for cloud backup and for sending songs or setlists to another person by email.

Signing in with Google or with an email address and password is handled by Firebase Authentication.
We store your email address and the user ID that Firebase assigns to your account.
We never see or store your password. If you use email sign-in, the password is handled entirely by Firebase.

3. Cloud backup (optional)

If you sign in and use Back Up Now, or leave automatic backup running, the following is uploaded to Google Firestore under your account:

Your songs and setlists, including titles, artists, chords, lyrics, performance notes and tags, stored as a single compressed file.
A record of which devices you have registered, so the app can enforce the device limit on your plan.
Counters of how many backups and restores you have run, so the app can enforce daily limits.

Backup is a two-way merge, not an upload of everything every time. You can delete all of it — see Deleting your data.

4. Sharing songs and setlists

Sending to someone by email

To let a bandmate receive a song or setlist at their email address, we keep a lookup record that links a normalised form of an email address to the corresponding account ID. This exists so the app can tell whether the address you typed belongs to a StageOn user. Both people must be signed in.

Shared setlists

A setlist you deliberately share is stored in Firestore together with the list of people you shared it with, so that everyone's copy can stay up to date.

Sharing to a nearby device

Handing a song or setlist to a nearby device sends it directly between the two devices over your local network. It does not require an account and the content is not uploaded to us.

5. Band Sync

The performance data that keeps a band in sync — which song is open, scroll position, tempo, key, play and pause — travels directly between your devices over your local Wi-Fi network. It does not pass through our servers.
To let bandmates find each other, the app announces the session on the local network using mDNS and, as a fallback, a Bluetooth Low Energy beacon that carries only the leader's local network address.
When you use a 6-digit session code or a QR code, the session code and the leader's local network address are written to Firestore briefly so the joining device can look them up, and removed when the session ends. This is the only part of Band Sync that uses the internet.

6. Searching for songs

When you search for a song you do not already have, the words you type are sent to the services below in order, until one of them returns a result. Only your search text is sent; your library is not.

The StageOn song archive, which we operate.
Serper.dev, a web search provider, if the archive has no match.
Google Gemini, as a last resort, if web search does not produce a usable chord sheet.

Capturing a chord sheet from a web page opens that page in a normal in-app browser; the site you visit sees that visit as it would any other.

7. Analytics and crash reports

We use Firebase Analytics and AppFig to understand how the app is used, and Firebase Crashlytics to find out when it breaks. This covers:

Which screens you open and which tabs you switch to.
Events for adding a song, adding a setlist, signing in and signing up.
Coarse properties of your account: whether you are signed in, roughly how many songs and setlists you have, and which plan you are on.
Crash reports containing the error, the app version and the device model.

These reports do not contain your lyrics, chords, song titles or setlist names.

8. Feedback form

If you use Send Feedback in Settings, we receive the message you write, the app version, your device model, your operating system version, and — only if you are signed in — your email address and account ID, so we can reply. It is stored in a private spreadsheet.

9. Device permissions

Permission	Why StageOn asks
Microphone	The tuner listens to your instrument to detect its pitch. The audio is analysed on your device as it arrives and is never recorded, stored or sent anywhere.
Camera	Scanning a bandmate's Band Sync QR code. No photo is saved.
Local network	Finding and connecting to bandmates' devices for Band Sync.
Bluetooth	A fallback way to find nearby bandmates when network discovery does not work.
Location (Android)	Older versions of Android require this permission before an app is allowed to scan for Bluetooth devices. StageOn does not collect, use or store your location.
Files and photos	Only used when you pick a file to import a library or setlist from.

The app asks for each of these at the moment you first use the feature that needs it, not at launch.

10. Who processes data for us

Google Firebase — authentication, cloud backup storage, sharing, analytics and crash reporting.
Google Gemini — song search, as a last resort.
Serper.dev — web search for song content.
Cloudflare — hosting for the StageOn song archive.
AppFig — usage analytics and remote configuration.

11. Keeping and deleting your data

Cloud backup data is kept while your account exists. In Settings you can:

Sign out, which leaves your local library untouched.
Delete your account, which removes your cloud backup, your device registrations, your usage counters and your sign-in account. The copy on your device is not touched, so you keep your songs.

You can also ask us to delete anything associated with you by writing to the address below. Depending on where you live you may have the right to request a copy of your data, correct it, or object to how it is used; the same address applies.

12. Children

StageOn is intended for a general audience and is not directed at children under 13. We do not knowingly collect personal information from children under 13.

13. Changes to this policy

If this policy changes in a way that affects you, we will update the date at the top of this page. Continuing to use the app after a change means you accept the updated policy.

14. Contact

Questions about this policy, or requests about your data: stageondev@gmail.com