BIDSleep vs Thyroid Thyme
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BIDSleep
This app records heart rate, blood oxygen, and motion data from your Apple Watch for personal wellness tracking. It does not offer analysis or diagnostics, focusing solely on data collection and export.
- Heart rate recording
- Blood oxygen (SpO₂) logging
- Motion data collection
- Optional sleep stage tracking
- Data export
- Personal self-monitoring
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App Purpose BIDSleep is a wellness app that helps users collect heart rate, blood oxygen (SpO₂), motion, and optional sleep stage data during rest or overnight sessions. It is designed solely for personal data logging and self-monitoring purposes. Use of HKWorkoutSession To enable higher-frequency physiological data collection (e.g., heart rate approximately every 5 seconds), BIDSleep uses HKWorkoutSession with the .mindAndBody activity type. This is required because alternative background methods like WKExtendedRuntimeSession do not allow sufficient sampling rates. No Analysis or Interpretation BIDSleep does not perform any health analysis, sleep scoring, or diagnostic interpretation. It simply facilitates the collection and optional export of raw physiological data from the Apple Watch and HealthKit for the user’s personal reference. Privacy All collected data remains securely stored on the user’s device and is never transmitted, analyzed, or shared without the user’s explicit consent. Disclaimer BIDSleep is not a medical device and does not provide any health diagnostics, treatment recommendations, or clinical functionality. It is intended only for general wellness and self-tracking use.
Thyroid Thyme
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Thyme is a private, local-first logbook for thyroid patients. Thyroid care moves slowly. A dose change today shows up in bloodwork twelve weeks from now — and by then, "how have you been feeling?" is hard to answer from memory. Thyme makes that long feedback loop visible. Log your symptoms, your medications, and your lab values, and see them together on a single timeline you can bring to your next appointment. WHAT YOU CAN LOG • Symptoms: fatigue, brain fog, anxiety, hair changes, weight, sleep, mood, temperature sensitivity, and more — plus custom symptoms you define. • Medications and dose changes: when you started, when you changed, when you stopped. • Lab values: TSH, Free T4, Free T3, TPO, TgAb, TRAb, Reverse T3, and more. • Daily notes, blood pressure, resting heart rate, and cycle phase (optional). SEE YOUR HISTORY • Today: log a day in about fifteen seconds. • Labs: a chart for each marker over time. • Timeline: symptoms, dose changes, and lab dates on a shared date axis. • Doctor visit summary: a clean PDF to print, share, or hand over (Premium). PRIVATE BY DESIGN Your health data lives on your phone. There is no account, no login, no cloud sync, and no analytics that touch your health data. You own your data and can export the full set as JSON or PDF at any time. THYME PREMIUM Daily logging is free and unlimited. A subscription unlocks tools to view the data you've already logged in more depth: • PDF doctor visit summary • History beyond the rolling 30-day window • Multi-marker lab overlay chart • Photo attachments on entries • Unlimited reminders • Face ID / passcode app lock Pricing: $4.99 per month or $34.99 per year, each starting with a free 7-day trial. Your trial automatically converts to a paid subscription unless you cancel at least 24 hours before the trial ends. Subscriptions auto-renew at the same price unless turned off at least 24 hours before the period ends. Cancel anytime in your Apple ID Settings → Subscriptions. Payment is charged to your Apple ID account at confirmation of purchase. Privacy Policy and Terms of Use are available in-app at More → Legal, and at the URLs listed on this App Store page. WHAT THYME IS NOT Thyme is a personal logbook. It is not a medical device. It does not diagnose, treat, cure, or prevent any condition. It does not interpret your lab values, label them as "normal" or "abnormal," recommend or adjust medications, or predict outcomes. Always consult a licensed healthcare professional for medical advice. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: BIDSleep at none against Thyroid Thyme's 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
Both are free to download. Thyroid Thyme sells 2 in-app purchases, starting at $4.99 per month. BIDSleep asks for nothing beyond the download.
| Parameter | BIDSleep | Thyroid Thyme |
|---|---|---|
| Price | Free | Free |
| Rating | 2.6 (5 ratings) — better | — |
| Positive reviews | 25.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 3 MB | 47 MB |
| Age rating | 4+ | 12+ |
| Developer | Joyita Dutta | Michael Noland |
In-app purchases
BIDSleep
No in-app purchases
Thyroid Thyme
- Thyroid Thyme Premium Monthly7 Days trial$4.991 Month
- Thyroid Thyme Premium Anuual7 Days trial$34.991 Year









