Privacy policy
What Prowallo and BuildCadence keep about you, why, who else handles it, and how to get it deleted.
Updated November 2026
Who we are
Prowallo (prowallo.com) and BuildCadence (buildcadence.co) are one service, built and run by an independent founder in Canada. They share the same code and the same database, so this policy covers both. To reach us, sign in and choose Send feedback in the menu under your profile picture.
What we keep
- Your account: your name, email address and profile picture, from the sign-in service (including Google, if you sign in with Google).
- What you create: your prompts and wallets, and in BuildCadence your goals, tasks, streaks and groups.
- Coach chats: your conversations with the in-app Coach, saved to your account, with a copy in your browser for 7 days.
- AI keys you add: stored encrypted, and used only to send your own requests to the AI provider you picked.
- Settings: your email preferences, reminders and which apps you show.
- Feedback you send: your message, the page you were on and your device details, plus your name and email so we can reply.
- Prompt pack sign-ups: your email address and the page where you signed up.
- Where you came from: a small cookie (bc_src) that records the link that first brought you here, so we know which posts work.
Cookies and browser storage
We use the sign-in service's cookies to keep you signed in, the bc_src cookie above, and your browser's storage for things like your theme and recent Coach chats. Page views are counted with Vercel Web Analytics, which doesn't use cookies. We don't use advertising cookies.
Who else handles your data
We use these services to run the app. Each one only gets what it needs:
- Vercel hosts the app and counts page views.
- MongoDB Atlas stores the database.
- Clerk handles sign-in.
- Resend sends our emails.
- Google: if you use the free magic wand, the text you rewrite is sent to Google's Gemini API on our paid plan, under which Google doesn't use it to improve its products. If you sign in with Google, Google confirms who you are.
- The AI provider you choose: when you use your own AI key (for example OpenAI, Anthropic or Google), what you send in the Coach or the wand goes to that provider under its own terms.
- Voice input: the microphone button uses your browser's built-in speech recognition, so your browser's maker processes the audio.
These services may store data outside your country, including in the United States.
What we don't do
We don't sell your data, we don't show ads, and we don't use your prompts to train AI models.
Shared links
If you share a wallet, anyone with the link can see it. Shared pages are hidden from search engines, and you can stop sharing at any time.
Keeping and deleting your data
We keep your data while you have an account. To delete your account and everything in it, ask through Send feedback, and we'll delete it within 30 days. You can turn our emails off in Settings at any time.
Security
The app only runs over HTTPS, AI keys are stored encrypted, and access to the production systems is limited to the people who run the service.
Children
The app isn't meant for anyone under 16.
Changes
If this policy changes, we'll update this page and the date at the top.