# DotSleep - Sleep Debt Log — Fatigue Tracker & Bedtime

> Fatigue Tracker & Bedtime (iPhone/iPad app by 建达 刁.)

- Source: https://appshunter.io/ios/app/dotsleep-sleep-debt-log/id6764863862 (this page in markdown: same URL + `.md`)
- Developer: [建达 刁](https://appshunter.io/developer/1895938303)
- Category: Health & Fitness, Lifestyle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 93 MB
- Languages: English, Japanese, Korean, Chinese
- Released: 2026-05-03
- Data updated: 2026-07-07
- User reviews in markdown: https://appshunter.io/ios/app/dotsleep-sleep-debt-log/id6764863862/reviews.md

## What is DotSleep?

DotSleep helps you understand your real energy state and make better sleep decisions — not just by counting hours, but by tracking your cumulative sleep debt, fatigue score, and nightly recovery quality.

Fatigue Score, Sleep Debt, and Sleep Score
DotSleep uses a sleep debt based fatigue algorithm to estimate your current fatigue level, calculate your sleep debt balance, and show a Sleep Score that explains how well each night supports recovery.

Personalized Bedtime Suggestion
Based on your fatigue level, sleep debt, target wake time, and sleep latency, DotSleep gives you a personalized bedtime suggestion each night so you can recover proactively.

Today’s Overview
See your current fatigue level (Energized / Normal / Mild / Moderate / Severe), sleep debt balance, recent sleep summary, and tonight’s suggested bedtime at a glance.

History and Daily Details
Review your full sleep log, 7-day trend chart, and daily detail view with sleep stages from Apple Health, including Core, Deep, and REM when available.

Sleep Trends That Reflect Real Schedule Drift
Trend charts now position sleep bars by actual bedtime and wake-up time, making it easier to spot late nights, early nights, and shifts in your routine over time.

Monthly Sleep Report
Get a monthly summary of your sleep, including sleep debt breakdowns, fatigue trends, key highlights, and achievement progress to help you stay consistent.

Apple Watch
Check your fatigue on your wrist, review synced data, and log sleep directly from your watch with updates sent back to your iPhone.

Home Screen Widgets
Show your fatigue score, Sleep Score, and tonight’s bedtime suggestion on your Home Screen or Lock Screen for quick daily awareness.

HealthKit Integration
Automatically imports sleep data from Apple Health and merges it with manual entries, reducing duplicate logging and keeping your history cleaner.

Sleep Knowledge Base
Read science-backed articles on sleep debt, fatigue, deep sleep, REM, circadian rhythm, and recovery habits to better understand your sleep.

Smart Reminders
Bedtime prep, sleep, and morning log reminders help you build a more consistent routine over time.

Premium Features

Unlimited sleep articles, with more added over time
Monthly sleep reports with trends, targets, and sleep debt breakdowns
Achievement system with 20 badge types
Apple Health sleep import
Home Screen and Lock Screen widgets
iCloud backup and restore
Available as monthly, yearly, or lifetime plans.

Privacy
Your sleep data is stored locally on your device. iCloud sync and Sign in with Apple are supported, so no extra account is required.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| DotSleep Premium (Monthly) | $2.99 | per month |
| DotSleep Premium (Yearly) | $14.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| DotSleep Premium (Lifetime) | $24.99 | one-time |



## Version history (last 5 releases)

### 1.4.0 — 2026-07-05

1. Added achievement previews to the Home screen.
2. Added a fire ambient sound.
3. Fixed an issue where reminder times did not follow the latest suggestion.

### 1.3.0 — 2026-06-16

1. Smart insights in monthly report: sleep consistency, social jetlag, chronotype, multi-month trends & optimal bedtime
2. Apple Watch face gallery — 6 preset watch faces, one-tap add
3. In-app achievement unlock banner
4. Fixed duplicate monthly achievement unlock bug

### 1.2.0 — 2026-06-01

1.All-new Sleep tab: sleep methods, breathing exercises, and white noise in one place
2.6+ science-backed sleep methods: Military Sleep Method, PMR, Cognitive Shuffling, and more — with step-by-step guidance
3.5 breathing exercises: 4-7-8 Breathing, Box Breathing, Physiological Sigh, and more — with interactive animations and haptic feedback
4.20+ white noise tracks: rain, ocean waves, campfire, color noises, piano melodies — with sleep timer

### 1.1.1 — 2026-05-26

1. Expanded the functionality of the free version
2. Optimized achievement evaluation logic
3. Visual upgrade to the membership activation page

### 1.1.0 — 2026-05-19

DotSleep 1.1.0 brings a more complete sleep analysis experience:

- Added sleep debt breakdowns in monthly reports, separating direct sleep loss from late-night penalties.
- Sleep trend bars now reflect real bedtime and wake-up time, making schedule drift easier to spot.
- Added a new Sleep Score card to explain each night across recovery, bedtime timing, consistency, continuity, and sleep debt impact.
- Added Japanese and Korean support across key UI, permission text, sleep articles, and parts of the Widget and Watch experience.
- Improved App Store rating request timing so prompts appear only after meaningful positive actions.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-07.*