CircadiaOS vs Mout
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CircadiaOS
This app learns your body's ideal sleep temperature and automatically adjusts your smart thermostat throughout the night. It uses data from your wearable to personalize a four-phase temperature schedule for optimal sleep recovery. Requires a compatible smart thermostat and sleep-tracking wearable.
- Learns ideal sleep temperature
- Personalized four-phase temperature schedule
- Integrates with smart thermostats
- Syncs with sleep-tracking wearables
- Analyzes sleep quality
- Two-week calibration period
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CircadiaOS adjusts your bedroom temperature through the night, automatically. Your body temperature isn't constant while you sleep. It drops as you fall asleep, stays low through your deepest sleep, and rises again before you wake. A thermostat held at one number all night works against that. CircadiaOS builds a temperature curve for your night and drives your smart thermostat to follow it. Connect a wearable and the curve adapts to your own recorded nights instead of a general model. HOW IT WORKS - Connect your thermostat and your wearable - CircadiaOS builds a curve from your profile on night one - As your nights accumulate, the curve shifts to your own data - See exactly which parts come from your sleep and which are still estimates WHAT YOU SEE - Tonight's schedule, phase by phase - Why each setpoint is what it is - Your best and worst nights, side by side, and what differed Requires a compatible smart thermostat. A wearable is optional but unlocks personalization from your own sleep data. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Mout
Plan and document your outdoor adventures with friends. Create hiking groups, record hike details, and build a visual journal of your explorations. Discover new trails and relive your favorite memories on interactive maps.
- Group adventure planning
- Personal adventure journal
- Interactive adventure maps
- Import activity data from Strava
- Social sharing and commenting
- Premium topographic and 3D maps
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Welcome to Mout — the outdoor adventure app built for hikers, explorers, and friend groups. Whether you're planning your next weekend hike, exploring new trails, or looking back on unforgettable adventures, Mout brings everything together in one place. Plan trips with your group, discover where you've been, and build a personal adventure journal that grows with every hike. Plan Together Create adventure groups, invite friends, and organize upcoming trips. • Create hiking groups • Plan upcoming adventures • Chat with your group • Keep everyone organized before your next trip Remember Every Adventure Every hike becomes a beautiful adventure card filled with your favorite memories. • Add photos from every adventure • Record distance, elevation, duration, and location • Connect your Strava account to import activity data • Add your AllTrails username to share your hiking profile Interactive Adventure Maps Your adventures come to life on an interactive map. • View every place you've explored • Save memorable locations • Organize adventures into collections (Premium) • Explore with multiple map styles Stay Connected Follow your friends' outdoor journeys. • View recent adventures • Like and comment on posts • Build hiking groups together • Share memories privately with friends Premium Features Upgrade to Mout Premium to unlock: • Outdoor Topographic Map • 3D Terrain Map • Collections • Up to 10 photos per adventure • Higher quality photo storage • Unlimited adventure uploads Whether you're chasing mountain summits, exploring national parks, backpacking with friends, or documenting local trails, Mout helps you capture every adventure and keep your outdoor memories organized for years to come. Get outside. Explore more. Remember every adventure. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: Mout at 5.0 against CircadiaOS's 3.5. Mout also leads on ads (none vs shown) and iOS requirement (15.1 vs 18.0). CircadiaOS's advantage is update cadence (every 3 days vs every 2 weeks) and ratings volume (11 vs 1). On price, in-app purchases, monetization model and device support 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
Both are free to download. CircadiaOS sells 4 in-app purchases, starting at $9.99 per month and Mout sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
Mout holds the better App Store score, 5.0 against 3.5. That said, the two scores are not equally well evidenced: CircadiaOS has 11 ratings behind it against 1, so its average is the more settled of the two.
CircadiaOS ships an update every 3 days, Mout every 2 weeks. The most recent releases landed on October 24, 2026 and October 13, 2026 respectively.
| Parameter | CircadiaOS | Mout |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (11 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 11 — better | 1 |
| Update frequency | Every 3 days — better | Every 2 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 25 MB | 50 MB |
| Age rating | 17+ | 4+ |
| Developer | CircadiaOS LLC | Christopher McAndrew |
Customer experience
CircadiaOS
Mout
In-app purchases
CircadiaOS
- CircadiaOS Lite Monthly$9.991 Month
- CircadiaOS1 Month trial$19.991 Month
- CircadiaOS Lite Yearly$99.991 Year
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- CircadiaOS1 Month trial$159.991 Year
Mout
- Mout Premium3 Days trial$4.991 Month
- Mout Premium3 Days trial$39.991 Year









