Support

Yes. Carbon is completely free on every platform — iPhone, iPad, and the web. There's no subscription, no trial, no paywall, and no upgrade prompts. Every feature is unlocked for everyone.

No. Carbon is free to use, with no subscription of any kind. We believe task managers shouldn't charge monthly for what amounts to a database and some UI.

Carbon is now free, but if you bought it earlier, thank you — you helped get this built. Past purchases were processed by Apple, so any refund has to go through them. Visit reportaproblem.apple.com, sign in with your Apple ID, find the Carbon purchase, and request a refund. Apple typically processes these within a few days.

Your tasks sync automatically across all devices signed into your Carbon account. Changes propagate in real time — edit a task on your iPhone and it appears on the web app within seconds. Sync is included for everyone and requires no additional setup.

Yes. Your data is encrypted at rest and in transit. We don't use analytics or tracking SDKs, we don't collect device identifiers, and we don't sell your data to anyone. Voice audio is processed entirely on your device and is never transmitted to our servers. See our Privacy Policy for full details.

You can request account deletion by emailing privacy@carbonapp.co. We will delete your account and all associated data from our servers within 30 days. You can also delete individual tasks and cards directly within the app at any time.

Carbon organizes tasks into exactly three cards: Today (what you're doing now), Next (important tasks coming up), and Someday (ideas and long-term goals). This constraint is intentional — it forces prioritization instead of infinite list sprawl.

Signals are task states that go beyond simple checkboxes. Every task has one of five signals: Pending (not started), In Progress (working on it), Completed (done), Delegated (handed off to someone), and Follow Up (needs attention later). Swipe right on a task to cycle through them.

Voice capture lets you add tasks by speaking. Tap the microphone button, say your task naturally (including dates, times, tags, and delegates), and Carbon will transcribe and parse it automatically. Speech is processed on your device using Apple's Speech Recognition framework — audio is never sent to our servers.

First, check your internet connection. Then try closing and reopening the app. If the issue persists, sign out and sign back in from Settings. This re-establishes the connection to our sync servers. If you're still having trouble, email us at support@carbonapp.co and we'll help.

Carbon is available free on iPhone (iOS 15+) and iPad, and in any browser at my.carbonapp.co — including on Mac, Windows, and Linux. There is no separate native Mac app; on a Mac you use the web app. Android is coming later this year. Your account and data sync across all platforms, and the iOS app also includes Home Screen widgets for quick access.

Email support@carbonapp.co with a description of the issue, what you expected to happen, and what actually happened. If possible, include your device model and iOS version. Screenshots are always helpful. We read every email and typically respond within 24 hours.