Privacy Policy

App: LyoSpend (Expense Tracker) · Developer: LYONSOFT COMPANY LIMITED · Effective: April 9, 2026 · Last updated: August 8, 2026

Summary: LyoSpend can be used without an account for local tracking. When you sign in, Firebase Authentication and Realtime Database provide cloud workspaces, sync, and collaboration across supported devices. We do not sell your personal or financial information.

Information We Collect
How We Use Your Information
Data Storage & Security
Cloud Sync & Shared Workspaces
Third-Party Services
Analytics
Children's Privacy
Your Rights
Changes to This Policy
Contact Us

1. Information We Collect

LyoSpend is designed with privacy as a core principle. Depending on how you use the app, we may process:

Expense data you enter (amounts, categories, notes, dates) — stored locally, or in a cloud workspace when you sign in and choose cloud sync.
App preferences and settings — stored locally on your device.
Account information — email address, display name, sign-in provider, and authentication identifiers when you create or use an account.
Workspace information — workspace membership, invitations, shared transactions, budgets, and related records needed to provide collaboration and sync.
Anonymous crash reports — if you opt in via iOS or iPadOS system settings, Apple may send crash logs to us through App Store Connect. These contain no personal or financial data.

We do not collect your contacts, precise location, or the contents of your receipt images for advertising. Receipt images and other local-only features may remain on your device.

2. How We Use Your Information

We use the information above to provide and improve LyoSpend. Specifically, we:

Display your expenses, budgets, and reports within the app.
Calculate totals, averages, and trends shown in charts.
Send local notifications (e.g., budget warnings) — these are processed entirely on your device.
Authenticate your account, sync cloud workspaces, and support invitations and shared workspaces.

We do not use the financial data you enter for advertising or profiling. Advertising services may process device identifiers, consent status, ad interactions, and technical diagnostics according to your device settings and applicable consent choices.

3. Data Storage & Security

Local data is stored in the app's device database. When you sign in and select a cloud workspace, supported workspace data is stored in Firebase Realtime Database and protected by Firebase Authentication and security rules.

Local-only workspaces remain on the device and are not uploaded as cloud workspace data.
Cloud workspace data is transmitted to Firebase to provide sync and collaboration.
We use reasonable technical and organizational measures to protect the information we process.
If you delete the app, all locally stored data is permanently removed.

4. Cloud Sync & Shared Workspaces

When you sign in and use a cloud workspace, LyoSpend syncs supported data across iOS/iPadOS and Android and allows you to collaborate with invited members.

Sign-in may use Google Sign-In, email/password, or supported Apple sign-in options depending on the platform.
Firebase Authentication manages the account identity; Firebase Realtime Database stores supported cloud workspace data.
You can sign out or continue using a local-only Personal workspace when you do not want to sync that data.
Cloud data shared with other workspace members may remain available to the workspace owner and remaining members.

5. Third-Party Services

LyoSpend may use the following services, depending on platform and enabled features:

Firebase Authentication and Realtime Database for account sign-in, cloud workspaces, sync, and collaboration.
Firebase Analytics for aggregated product and reliability insights.
Google Mobile Ads and related consent services for advertising in supported free versions.
RevenueCat and Apple App Store or Google Play billing for premium entitlements and purchases.
Apple and Google platform services such as app distribution, sign-in, notifications, and crash reporting.

These services are governed by their respective privacy policies and your system-level privacy choices.

6. Analytics

We may use Firebase Analytics, store analytics, crash reports, and limited ad performance diagnostics to understand app reliability, installs, purchases, and ad delivery. These analytics are not used to read the contents of your expense records.

7. Children's Privacy

LyoSpend is a general-purpose finance utility and is not directed at children. We do not knowingly collect personal information from children under the age required by applicable law. If you believe a child has provided personal information, please contact us.

8. Your Rights

You can manage your information through the app and the controls described below:

Access: View supported local and cloud workspace data within the app.
Deletion: Delete individual records in the app, or request account and associated cloud data deletion through the account deletion page.
Portability: Use the Export feature to download your data as CSV.

Deleting an account does not automatically remove local-only data that you chose to keep on a device, or records belonging to a shared workspace owned by another user. If you have concerns about data shared during support interactions, contact us and we will handle the request as required by law.

9. Changes to This Policy

We may update this Privacy Policy from time to time. When we do, we will update the "Last updated" date at the top of this page. Significant changes will be communicated via an in-app notification or App Store release notes. Continued use of the app after changes constitutes acceptance of the updated policy.