Questionsanswered.

No. Silent is a one-time purchase of $3.99. You get every feature, fully unlocked, forever. No subscriptions, no upgrade prompts, no feature gates.

Yes, completely. All your data lives on your device. The AI Coach uses Apple Intelligence, which processes everything locally on your iPhone. Your information never reaches any server.

Apple Intelligence is Apple's on-device AI system, available on iPhone 15 Pro and later with iOS 18.1 or newer. Silent uses it to power the AI Coach, all processed on your device with no internet connection required.

Yes. Silent reads steps, active calories, sleep, weight, and more from Apple Health. You can also log everything manually inside the app. Data sources are clearly labeled.

Absolutely. All core features including calorie tracking, habit builder, fasting timer, analytics, achievements, and widgets work on any iPhone running iOS 18. Apple Intelligence adds the AI Coach layer.

Silent works on any iPhone running iOS 18 or later. The AI Coach requires iPhone 15 Pro or later with Apple Intelligence enabled in Settings.

A consistent calorie deficit is the only thing that reliably works. Silent lets you log meals quickly and see your daily total at a glance. The AI Coach looks at your weekly average and tells you whether you're trending in the right direction, so there's no guesswork.

Most research points to 0.7 to 1 gram per pound of bodyweight per day as the sweet spot. Silent tracks your protein alongside your other macros and shows your 7-day average each week. The AI Coach will flag if you are consistently falling short.

Yes, especially if you are new to training or returning after a break. The key is high protein and a modest deficit. Silent tracks both: log your meals, keep protein at 0.7 to 1 gram per pound of bodyweight, and check your weekly insights to see whether your numbers are where they need to be.

A calorie deficit means eating fewer calories than your body burns each day. Silent tracks what you eat and reads your active calorie burn from Apple Health, so you can see both sides of the equation in one place. The AI Coach gives you a weekly summary to confirm the deficit is holding.

A few common causes: eating more than you think (log honestly for a week in Silent and check your numbers), not enough protein (aim for at least 0.7g per pound of bodyweight), or poor sleep (Silent reads your sleep hours from Apple Health). The AI Coach can look at your full week of data and flag what stands out.

Consistency beats intensity every time. Silent has a habit builder where you create custom daily habits, track your streaks, and see your consistency on a heatmap. A long streak is surprisingly motivating to protect, and the AI Coach nudges you when you start slipping.

It works because it removes guesswork. Most people dramatically underestimate what they eat. Silent shows your real daily numbers, and after a week you start to see patterns you never noticed. You do not need to track forever, but a few weeks of honest data tells you more than years of vague intentions.

The most popular starting point is 16:8, meaning you eat within an 8-hour window each day. Silent has a built-in fasting timer that runs as a Live Activity on your lock screen, so you can see your elapsed fast without opening the app. You can adjust your window based on how you feel.