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KFirst is an offline-first engineering logbook designed for construction professionals. It helps you track projects, manage finances, and generate reports—all without requiring an internet connection. Your data stays on your device, giving you complete control and privacy.

Yes! KFirst is designed to work completely offline. All your data is stored locally on your device. Internet is only needed for optional features like cloud backup (Pro feature) or downloading the app initially.

KFirst is available for Android devices. We're working on iOS support and will announce when it's ready. For the best experience, we recommend Android 8.0 or later.

Absolutely. Your data is stored in an encrypted SQLCipher database on your device. We never see your business data unless you explicitly enable cloud backup (Pro feature), and even then, it's end-to-end encrypted. See our Privacy Policy for full details.

Yes! You can export your projects, expenses, and reports as CSV or Excel files anytime. Go to Settings → Export Data. This ensures you're never locked into KFirst—your data is always portable.

You can delete your account anytime from Settings → Account → Delete Account. This will permanently delete your local data and any cloud backups. You can also email us at firstbridgestudios.app@gmail.com to request account deletion.

Pro includes: unlimited projects (vs. 5 in Free), no ads, encrypted cloud backup, equipment rental tracker, Tally-ready export, and priority email support. See our Pricing page for full details.

Go to Settings → Subscription → Cancel Subscription. Your Pro features will remain active until the end of your billing period, then you'll automatically revert to the Free tier. Your data stays intact.

Yes! We offer a 30-day money-back guarantee, no questions asked. If you're not satisfied with Pro, email us at firstbridgestudios.app@gmail.com within 30 days of purchase for a full refund.