Comparison

SleepSafe vs epiderm.ai

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SleepSafe

This app uses your Apple Watch to detect nightmares and night terrors in real-time, gently guiding you back to sleep with haptic feedback. It also offers sleep analysis, a sleep talking recorder, and insights into stress and anxiety.

Highlights
  • Real-time nightmare detection
  • Gentle haptic interventions
  • Sleep talking recorder
  • Comprehensive sleep analysis
  • Personalized sleep score
  • Stress & anxiety insights
Features
Read full description

Wake up calmer. SleepSafe is the only Apple Watch app that detects nightmares, night terrors, and sleepwalking as they happen — then gently guides you back to peaceful sleep with subtle taps, before the episode escalates. Built for people living with PTSD, anxiety, restless sleep, and recurring bad dreams, SleepSafe watches over you all night so you can finally rest. KEY FEATURES - Real-Time Nightmare Detection: On-device machine learning reads Apple Watch heart rate and motion sensors up to 4x per second to catch nightmares the moment they begin - Night Terror Protection: Detects sudden heart-rate spikes and intervenes instantly to stop night terrors before they take hold - Gentle Haptic Interventions: Soft, escalating Apple Watch taps ease you out of a nightmare without jarring you awake - Wake-Me-Up Mode: Optional stronger haptics fully wake you when a severe nightmare or night terror is detected - Sleep Talking Recorder: Captures and transcribes sleep talking, sounds, and movement overnight, stored securely on-device for complete privacy - Comprehensive Sleep Analysis: Track sleep stages (REM, Core, Deep), duration, and quality to understand your night and sleep better - Personalized Sleep Score: See your sleep improve over time with nightly performance tracking - Stress & Anxiety Insights: Physiological trends reveal what may be disrupting your sleep - Sleep Trends Dashboard: Real-time sleep debt and history in one clear, intuitive view - Fully Customizable: Toggle every feature to fit your needs — anxiety, restless legs, night terrors, or PTSD nightmares YOUR PRIVACY COMES FIRST All audio recording and machine-learning analysis happen entirely on your device. Your most personal moments never leave your Apple Watch and iPhone. Stay calm, collected, and safe through the night — and finally sleep better. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

epiderm.ai

Decode complex skincare ingredient lists instantly. Understand the function of each component to make informed decisions about your skin health and choose products that best suit your needs.

Highlights
  • Decode ingredient functions
  • Understand skincare ingredients
  • Make informed product decisions
  • Empower skincare journey
Features
Read full description

Confused by long ingredient lists on skincare products? Paste any skincare ingredient list into epiderm.ai and instantly discover what each ingredient does for your skin. We help you understand the function of each ingredient so you can make informed, confident decisions for your skin health. - Understand your skincare - Decode ingredient functions - Choose products that match your skin needs Empower your skincare journey with clarity, not guesswork.

Screenshots

SleepSafe4 screens
epiderm.ai4 screens

Verdict

The call

The clearest difference is rating: epiderm.ai at 5.0 against SleepSafe's 4.5. epiderm.ai also leads on in-app purchases (none vs 2) and update cadence (every 4 days vs every 2 weeks). SleepSafe's advantage is ratings volume (12 vs 2). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SleepSafe sells 2 in-app purchases, starting at $6.99 per month. epiderm.ai asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

epiderm.ai holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: SleepSafe has 12 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

SleepSafe ships an update every 2 weeks, epiderm.ai every 4 days. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 5 level
SleepSafe versus epiderm.ai: the parameters behind the verdict, then further details
ParameterSleepSafeepiderm.ai
PriceFreeFree
Rating4.5 (12 ratings)5.0 (2 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings12 — better2
Update frequencyEvery 2 weeksEvery 4 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, Apple WatchiPhone, iPad
Requires iOS17.0 — better17.6
Further details — not scored
Size58 MB30 MB
Age rating4+4+
DeveloperOliver Lerstøl HebnesVivi Rusli

Customer experience

SleepSafe

All ratings11 ratings
Positive90.9%
Neutral0.0%
Negative9.1%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

epiderm.ai

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

SleepSafe

Subscriptions2
  • Monthly Premium7 Days trial$6.991 Month
  • Yearly Premium$44.991 Year
None

epiderm.ai

No in-app purchases

Questions

Is SleepSafe free?
SleepSafe is free to download, with in-app purchases available.
Is epiderm.ai free?
epiderm.ai is free to download, with no in-app purchases.
Which has better reviews, SleepSafe or epiderm.ai?
epiderm.ai is rated higher. SleepSafe averages 4.5 out of 5 from 12 ratings, while epiderm.ai averages 5.0 from 2 ratings.
Do SleepSafe or epiderm.ai have ads?
Neither SleepSafe nor epiderm.ai shows ads.
Which is updated more often, SleepSafe or epiderm.ai?
SleepSafe ships an update every 2 weeks, and epiderm.ai every 4 days. Most recently, SleepSafe was updated on November 7, 2026 and epiderm.ai on October 30, 2026.

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