Haloscan vs CircadiaOS
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Haloscan compared with CircadiaOS
| Detail | 
Haloscan | 
CircadiaOS |
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| What it does | All-in-one thyroid tracking app for Hashimoto's and hypothyroidism
| The thermostat schedule that learns from your sleep
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
| US
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| Pricing model | Not given
| Freemium
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| Pricing | Not given
| Free: starting temperature schedule, optional wearable connection, nightly sleep data and trends, no thermostat control. Premium (monthly): $12.99/month with automatic thermostat control, four-phase schedule, 14-night starting period, one-variable-at-a-time adjustment from wearable data, 14-day free
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| Key features | - Generate personalized two-page doctor visit report from your data
- Track lab results, symptoms and medication dose changes on one timeline
- Photograph lab printouts and auto-extract values
- Visualize correlations between symptoms, labs and medications
- Medication reminders with biotin alerts before blood draws
- Export all data to CSV with one click
- Store reference ranges specific to each laboratory
- Import and analyze past lab results on single timeline
| - Four-phase overnight temperature schedule (pre-sleep, early night, late night, pre-wake)
- One-variable-at-a-time personalization held for 7 to 14 nights per change
- Wearable integration: Apple Watch, Oura Ring, Whoop, Garmin, Fitbit
- Thermostat compatibility with Nest, ecobee, Honeywell Home and 20+ brands
- 14-night starting period and reference point on Premium
- User-set temperature floor and ceiling, never below 63°F
- Why This Curve display showing where each setpoint came from and data behind it
- Best vs Worst nights comparison showing highest and lowest scoring nights
- Manual override capability with automatic resumption next night
- Referral program earning free months of Premium for every three friends who join
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| What makes it different | - Doctor report generated in one tap from your own data
- Shows symptom patterns linked to lab results and dose changes
- Automatically alerts before blood draws if you take biotin
| - No new hardware required—works with your existing smart thermostat and wearable
- Software-first approach running sleep algorithms on your thermostat rather than requiring specialized cooling beds
- Personalization through one-change-at-a-time adjustments graded against your own sleep data
- Complete transparency showing where every setpoint comes from and how much data supports it
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 2 ● no change since last check | 13 ● no change since last check |
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| Trust Flow (Majestic) | 0 | 4 |
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| Citation Flow (Majestic) | 16 | 24 |
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| Referring domains (Majestic) | 3 | 47 |
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3 details filled in for both companies.
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