Comparison

Somnus vs Inner Forecast

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

Head to head
About

Somnus

This app analyzes your daily habits and sleep data to uncover patterns influencing your sleep quality. It offers a system to test habit changes and provides personalized, data-driven insights to improve your sleep score. All analysis is performed on-device for maximum privacy.

Highlights
  • On-device AI analysis
  • Habit and sleep pattern detection
  • Sleep experiment system
  • Personalized insights
  • Sleep score breakdown
  • Causal pattern detection
Read full description

What if your sleep data could tell you exactly what to change? Somnus doesn't just track sleep — it finds hidden patterns between your daily habits and sleep quality, then gives you a system to prove they work. All analysis runs on-device using Apple Intelligence. Your health data never leaves your phone. DISCOVER WHAT DRIVES YOUR SLEEP Somnus analyses 25+ health signals — sleep stages, heart rate, HRV, steps, exercise, bedtime consistency, and more — to find the specific habits that move your sleep score. Not generic tips. Your patterns, from your data. - Personalised insights backed by statistical evidence - Causal pattern detection: find what improves your sleep, not just what correlates - Confidence levels show how strong each signal is - Categories: Sleep, Activity, Recovery, Circadian, Stress RUN SLEEP EXPERIMENTS Found a pattern? Test it. Create structured plans to prove whether a habit change works — with measurable before-and-after tracking. - Set targets like "bed by 11 PM" or "run 3x per week" - Automatic daily hit/miss adherence detection - Compare sleep scores on target nights vs off-target nights - AI-generated weekly reviews summarise progress - Track record calendar, streaks, and impact analytics SLEEP SCORE BUILT ON SCIENCE Your nightly score draws from four research-backed pillars: duration, continuity, regularity, and sleep architecture. Apple Watch stage data adds deep sleep and REM analysis. - "Vs Usual" comparison for every night - 7, 30, and 90-day trends - Perceived sleep slider: how you feel vs what the data shows - Tap any night for a full breakdown 100% ON-DEVICE. ZERO CLOUD. Apple Intelligence generates personalised narratives and plan summaries entirely on your iPhone. No accounts. No uploads. No ads. No tracking. FREE - Nightly sleep score with detailed breakdown - 7 and 30-day trend charts - Perceived sleep tracking - Your first data-driven insight SOMNUS PRO - Full insight library with 25+ behavioural signals - Sleep experiment system with plans and analytics - Advanced recovery metrics (HRV, resting HR, respiratory rate) - AI-powered weekly plan reviews - Causal pattern detection engine Prices vary by location. Payment charged to your Apple ID. Subscriptions auto-renew unless cancelled 24 hours before the period ends. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy: https://sebo17.wixsite.com/thryve/somnus-privacy Somnus requires Apple Health and works best with Apple Watch or a compatible sleep tracker. Somnus provides data-driven insights, not medical advice. Consult a healthcare professional for medical concerns.

About

Inner Forecast

Features
Read full description

Some days are sunny. Some are stormy. Inner Forecast is a calm, private place to notice the weather you are carrying. Checking in takes a moment. Choose the weather that fits how you feel, set how strongly it feels, and add a few words if you want to. Recent check-ins can sit gently beside one another, helping you notice when something has changed without turning your feelings into scores, streaks or targets. Over time, History forms a simple picture of your inner weather, ready whenever you want to look back. What’s inside: • Six weather moods, from Stormy to Sunny, with space for how strongly each one feels. • History for revisiting check-ins and seeing how your weather moved through a day or week. • A private journal for moments that need more words. • Home Screen and Lock Screen widgets for your forecast and a daily lift. • A First Aid Kit with breathing, grounding and support links for heavier moments. • A flexible layout that you can arrange around the way you think. • Custom colours, personal affirmations and three complete App Styles: Default, Ink and Nocturne. • A considered experience across iPhone and iPad. Private by default: Your entries are stored privately on your device. There are no accounts, ads, advertising trackers or data selling. Apple Health support and backup exports are entirely optional and only happen when you choose them. One purchase. No subscription.

Screenshots

Inner Forecast4 screens

Verdict

The call

The clearest difference is price: Somnus at Free against Inner Forecast's $1.99. Inner Forecast's advantage is in-app purchases (none vs 3) and device support.

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

Somnus is free to download; Inner Forecast costs $1.99 up front. Somnus sells 3 in-app purchases, starting at $2.99 per month. Inner Forecast asks for nothing beyond the download.

Scorecard4 real differences · 5 level
Somnus versus Inner Forecast: the parameters behind the verdict, then further details
ParameterSomnusInner Forecast
PriceFree — better$1.99
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequency—Every 8 days
Ads—No
In-app purchasesYesNo — better
MonetizationFreemium—
Devices—iPhone, iPad — better
Requires iOS26.018.0 — better
Further details — not scored
Size16 MB19 MB
Age rating17+4+
DeveloperSebastian OlsenJACK MOSS

In-app purchases

3 purchases

Somnus

Subscriptions2
  • Monthly3 Days trial$2.991 Month
  • Yearly$19.991 Year
One-time1
  • Lifetime$29.99
None

Inner Forecast

No in-app purchases

Questions

Is Somnus free?
Somnus is free to download, with in-app purchases available.
Is Inner Forecast free?
Inner Forecast costs $1.99, with no in-app purchases.

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