Twilight — App Store Copy
Publish-ready metadata. For audit findings and recommendations, see Twilight ASO analysis.
App Name (30 chars)
Twilight: Simple Sleep Tracker
Subtitle (29 chars)
Build consistent sleep habits
Keyword Field (98/100 chars)
sleep tracking,sleep schedule,morning routine,insomnia,fatigue,health,nfc,siri,shortcut,alarm,habit
Promotional Text (170/170 chars)
The simplest sleep tracker that actually improves your habits through powerful metrics. Syncs with Apple Health & integrates with Siri. Free, open-source & stored locally
Long Description
Twilight is the simplest sleep tracker you'll find that actually helps you build better sleep habits.
Sleep apps tend to overwhelm you with data you don't need. Twilight does the opposite. It tracks when you sleep and when you wake up, and shows you exactly what's improving and what isn't. Consistency & duration are the only sleep variables you actually control, and the metrics are built around that.
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THE METRICS
Every number in Twilight is there for a reason: to help you understand your trend or keep you motivated to stay consistent.
• Bedtime Rhythm: what % of nights you hit your target bedtime
• Wake Rhythm: what % of mornings you hit your target wake time
• Accuracy Score: how close your actual schedule matches your goal
• 7-Night Moving Average: smooths out outliers so you see the real trend
• Sleep Debt: cumulative deficit tracked over 30 and 90-day windows
• Weekday Breakdown: see if weekends are quietly wrecking your rhythm
• Duration Distribution: visualize how your nights cluster over time
• Streak: consecutive nights on schedule; the number that makes you not want to break it
When the streak hits 12 days and your bedtime rhythm reads 87%, staying consistent stops feeling hard. The data builds the habit.
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FEATURES
• NFC & QR Activation: tap a tag on your nightstand to start your session. No app-opening needed.
• Control Center & Siri: toggle sleep and wake from Control Center or with a voice command
• Wind-Down Timeline: a personalized 3-hour countdown with actions tied to your actual bedtime
• Apple Health Sync: your sleep sessions sync to Apple Health automatically
• Live Activity: session status on your Lock Screen and Dynamic Island
• Export your full sleep history in CSV or Markdown anytime
Coming soon: app & website blocking, full bi-directional Apple Health sync, smart alarm clock, and more.
Everything stays on your device. No account, no subscription. The source code is open and public.
Free. Always.
Screenshots
| # | Screen | Headline | Sub-caption |
|---|---|---|---|
| 1 | Dashboard — bedtime %, wake %, accuracy % | Is your schedule actually consistent? | Bedtime rhythm, wake rhythm, and accuracy — in one view |
| 2 | 7-night chart + moving average | 7 nights. One honest trend. | A moving window that shows where you’re actually heading |
| 3 | NFC tag tap (lifestyle shot) | Tap. Sleep starts. | Program any NFC tag from your nightstand |
| 4 | Sleep logs editor | Every night. Logged. | Manual entry or automatic sync with Apple Health |
| 5 | Metrics — sleep debt + weekday breakdown | Data that makes you want to show up tomorrow. | Sleep debt, duration trends, weekday patterns — every number tied to a behavior |
| 6 | Wind-down timeline | Your wind-down, timed to you. | A 3-hour countdown built around your actual bedtime |
| 7 | Streaks + accuracy score | The streak is the point. | 12 days in, you stop negotiating with yourself |
| 8 | Duration distribution + weekday chart | See the pattern before it becomes a problem. | Weekday breakdowns that show exactly where your rhythm slips |
| 9 | Onboarding trust badges | Free. Forever. | No subscription. No account. 100% offline. Open source. |
| 10 | Live Activity on Lock Screen | Sleep status. No app needed. | Lock Screen and Dynamic Island, always in view |
What’s New (first release)
Twilight is now on the App Store.
Track your sleep and wake times, measure your consistency, and build the habit that actually improves your sleep.
Free. Open source. No subscription.