FAQ
Frequently asked questions
What projects does Decise support?
Next.js 14 or later with Tailwind CSS v3 or v4, React 18+, TypeScript or JavaScript. Icon editing currently targets lucide-react. Your project needs a working dev server — if npm run dev or pnpm dev works, Decise can open it.
Does Decise modify my business logic?
Never. Decise only modifies layout, styling, text content, and asset references. Event handlers, state management, data fetching, and all other logic are never touched.
Can I undo changes?
Yes. Decise has full session history with undo/redo and visual before/after for every edit. Your code is also in git — Decise writes minimal, clean diffs that are easy to review and revert.
Decise can’t find my Node.js installation
Make sure Node.js 20 or later is installed and available in your PATH. Decise auto-detects Node.js on launch. If you use a version manager like nvm or fnm, ensure the version is activated in your default shell.
My project doesn’t load
Decise requires a Next.js + Tailwind CSS project with a working dev server. Check that your dev server starts normally with npm run dev or pnpm dev first. If it works in the terminal but not in Decise, email hello@decise.app with details.
The app says ‘unidentified developer’
Decise is code-signed and notarized by Apple, but distributed outside the Mac App Store. On first launch, right-click the app and choose Open, then click Open in the dialog. After the first launch, macOS will remember your choice.
How do I enter my license key?
Open Decise, go to Preferences, and paste your license key in the License section. Your key is emailed to you after purchase and also shown on the checkout confirmation page.
What macOS version do I need?
macOS 14 (Sonoma) or later, on Apple Silicon or Intel.
Is my source code uploaded anywhere?
No. Decise runs entirely on your Mac. Your source code, project files, and editing activity never leave your machine.
How do I cancel my subscription?
Visit your Stripe customer portal (linked from the pricing page) to cancel, update payment methods, or switch plans. After cancellation, you keep access through the end of your billing period.