Nightpenny
Save your sleep · Pay it back
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
Your sleep, visualized as a savings account. Pennie, a copper piggy bank, tracks deposits from good nights and withdrawals from short ones. One weekly ritual.
Your sleep is a running balance. Good nights deposit, short nights withdraw. Pennie, a warm copper piggy bank, shows where you stand and walks you through a quiet weekly ritual to catch back up.
No hustle. No optimization. No shame. Just a quiet weekly ritual and a number that tells you where you stand.
FROM A NIGHT'S SLEEP TO A SUNDAY HABIT
• PASSIVE TRACKING
Pennie reads sleep from Apple Health. You sleep, we count. No extra hardware, no fiddly logging.
• A RUNNING 14-NIGHT BALANCE
A signature 270° gauge shows your balance: hours owed, hours banked. Updated every morning.
• THE SUNDAY RITUAL
Three quiet minutes every Sunday. A statement of the week, one line from Pennie, and a repayment plan you actually want to follow.
• REPAYMENT PLAN, ON YOUR PACE
Pick Gentle (+30 min/night), Steady (+1 hour), or Ambitious (+1.5 hours). Bedtime events sync to Apple Calendar in one tap.
• FORECAST WITHOUT THE FEAR
See the next 30 nights at your current pace, plus a typical-dip heatmap of where your energy historically wobbles. Patterns, never predictions.
• APPLE WATCH + WIDGETS
Six widget families: small, medium, large, lock-screen circle, rectangle, inline. A wrist app and complications that keep your balance one flick away.
• WEEKLY SHARE CARD
Tap the gauge on Sunday to export a five-second vertical clip of your week. Strava-grade restraint. Share Pennie without sharing numbers you'd rather keep.
WHAT WE'RE NOT
Not a medical device. Nightpenny does not diagnose, treat, or prevent any condition.
Not a pressure cooker. No streaks to break. No red alerts. Debt is a number, not a character flaw.
Not a data broker. Sleep stays on your phone. No server, no ads, no data sold. Analytics is opt-in and never carries numeric sleep values.
THE SCIENCE, QUIETLY
Balance is computed using a 14-night rolling sum (Van Dongen et al. 2003), with surplus above 1h discounted at 40% (recovery is slower than accumulation, per the Sleep Foundation), and clamped at −8 hours. Full methodology lives inside the app, in Settings → About.
PRICING
Free
• Current balance + last 7 nights
• Pennie's daily greeting
Premium
• Full 14-night ledger
• The Sunday Ritual + Calendar sync
• Repayment Plan + 30-night Forecast
• All six widgets, share card, Apple Watch app
• Rich notifications and the full Pennie speech library
$6.99 / month (billed today, no trial)
$59.99 / year (14-day free trial, save 30%)
Built by Foxtaming, an indie studio of one. Questions, weather reports, or sleep stories: contact@nightpenny.com.
Terms of Use (EULA): https://nightpenny.com/terms · Privacy: https://nightpenny.com/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Nightpenny now works with Siri.
• Ask your balance: say "What's my sleep balance in Nightpenny" and Pennie answers out loud, no tapping needed.
• Tonight's target: ask how long to sleep tonight, and Pennie reads your goal back.
• Log by voice: tell Siri to log last night and land straight on the entry screen.
Plus small refinements and bug fixes throughout. Sleep well.
The developer, Thomas Sobstyl, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Health & Fitness
- Contact Info
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Thomas Sobstyl
- Size
- 61.6 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later. - Apple Watch
Requires watchOS 10.0 or later.
- iPhone
- Languages
English and 3 more
- English, French, German, Japanese
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Monthly Premium $3.99
- Annual Premium $34.99
- Copyright
- © 2026 Foxtaming
