Last updated: August 14, 2026
F's Factory ("we", "us") sets out below how we handle information about users of the service "Session Concierge" (the "Service").
We collect the following information. If you use the Service without creating an account, we do not collect your name, email address, or similar information.
| Information | When it is collected |
|---|---|
| Email address, password | When you register an account or sign in |
| Information received from your Google Account or Apple ID (email address, display name) | When you sign in with Google or Apple. If you choose to hide your email address when signing in with Apple, we receive only the forwarding address issued by Apple (@privaterelay.appleid.com); we do not receive your actual address. |
| Display name | When you register an account, or when you join on the spot |
| Bio, instruments you play, social links, individual/organization type | When you edit your profile (optional) |
| Profile image | When you upload an image (optional) |
| Session details (title, date and time, venue name, fee, parts being recruited, etc.) | When you create a session |
| Records of join requests, songs you request, comments | When you use each feature |
| Report contents, users you block | When you report or block |
| Information | Purpose |
|---|---|
| User identifier (the UID issued by Firebase Authentication) | Identifying users. An anonymous identifier is issued even if you do not register an account |
| Push notification token | Delivering notifications (only if you enable them) |
| Language setting | Remembering the display language (stored on your device) |
| Technical information about access (IP address, device and browser type, etc.) | Preventing unauthorized access and investigating faults. Collected by Google's platform services |
By the nature of the Service, some information is shown to other users.
| Always visible to other users | Display name, profile image |
|---|---|
| Only if you turn on "Make profile public" | Bio, instruments you play, social links, and your history of sessions attended (public sessions only) |
| Visible to participants of a session | The part you are playing, songs you request, comments you post |
| Shown on the venue monitor | Display name, the songs to be played and the assignment of parts |
We do not provide personal information to third parties except in the following cases.
We do not sell personal information.
We use the following external services to provide the Service. With these services, your information may be processed on servers outside Japan.
| Service | Provider | Purpose and information handled |
|---|---|---|
| Firebase Authentication | Google LLC | Account authentication. Email address, password, identifier |
| Cloud Firestore / Cloud Storage | Google LLC | Storing data and images |
| Cloud Functions | Google LLC | Server-side processing (confirming join requests, aggregation, etc.) |
| Firebase Cloud Messaging | Google LLC | Delivering push notifications. Notification token |
| Firebase App Check / reCAPTCHA | Google LLC | Preventing unauthorized access. Technical information about the device and browser |
| Firebase Hosting | Google LLC | Delivering the Service. Access logs |
| Sign in with Apple | Apple Inc. | Authentication using an Apple ID (iOS version only). Email address (a forwarding address if you choose to hide it), display name |
We provide a dedicated page describing the steps and how data is handled. → About deleting your account
Minors should use the Service only with the consent of a parent or guardian.
We may change this policy as necessary. If we make a material change, we will announce it by posting on the Service or by another appropriate method.
For inquiries about this policy or the handling of personal information, including requests for disclosure, please contact us below.
| Operator | F's Factory |
|---|---|
| Location | Chiba City, Chiba, Japan |
| Contact | Please use "Contact us" in the app (Menu → Contact us). You can send a message without signing in. |