Kakei AI Privacy Policy

Last updated: April 8, 2026

Your financial data. None of my business.

Most apps love collecting data. Kakei AI was built on the opposite principle. We invested heavily in integrating local AI models (MLX) so your data can be analyzed intelligently without ever leaving your device. This policy is here to be transparent about exactly what stays on your device — and what minimal external services are involved.

01 Built for Privacy

No account required: No sign-in. Not even the developer knows who you are.
Biometric protection: Face ID / Touch ID support to prevent physical snooping.
Privacy mask: A "hide assets" mode is available, and the interface blurs automatically when the app moves to the background.
Local-first: Core bookkeeping and local AI features work fully offline.

02 Data Storage & Transfer

On-device encryption: All data is stored in an encrypted local database on your device.
Personal iCloud sync: If enabled, data is synced exclusively through Apple's official CloudKit into your personal iCloud space. The developer has no access and cannot read your data.

03 AI & Data Security

Core Technology

Apple AI (Apple Intelligence)
Uses Apple's built-in AI, including speech recognition and translation features, all governed by Apple's privacy standards.
Local AI (MLX / Qwen3)
The AI model runs in an isolated sandbox entirely on-device. All analysis happens at the hardware level — data cannot leave your device.
Cloud AI (Google Gemini)
If you choose to bring your own API Key, the connection flows directly between your device and Google's servers. The app acts only as an interface and never handles your data in transit. Your API Key is stored exclusively in the Apple Keychain — a hardware-protected secure enclave that even the developer cannot access.

04 Required Third-Party Services

Exchange rates (Supabase): Only fetches publicly available exchange rate data. No personal data is uploaded.
Anonymous diagnostics (Firebase): Only sends de-identified system information in the event of a crash, used solely for bug fixes.
Payment processing: Handled entirely by the official Apple App Store. We do not process or store any payment information.

05 Changes to This Policy

We reserve the right to update this Privacy Policy at any time. For material changes, we will provide advance notice via in-app notification or this page, and update the "Last updated" date at the top.

Continued use of the App after changes take effect constitutes acceptance of the revised policy. If you have any questions, please reach out via the email below.

Questions about privacy or technical details?

support@hirobuilds.com