Ruby Rhythm vs C1B
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ruby Rhythm
This app offers a unique approach to period tracking by integrating Traditional Chinese Medicine (TCM) principles. It helps users understand their cycle phases, energy levels, mood, and overall well-being with a user-friendly interface and cute animal illustrations.
- Period and cycle tracking
- Traditional Chinese Medicine integration
- Cycle phase identification (Inner Winter, Spring, Summer, Autumn)
- Insights into energy, mood, and well-being
- User-friendly interface
- Data privacy: local storage, no sharing
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Say goodbye to overly complicated and pink period tracking and hello to Ruby Rhythm, the app that goes beyond the calendar. Ruby Rhythm integrates the wisdom of Traditional Chinese Medicine (TCM) to help you understand your cycle like never before. Track your periods and get insights into your body's unique rhythm. Ruby Rhythm isn’t just about dates; it’s about phases. With our easy-to-use interface, you can see if you're in your Inner Winter, Inner Spring, Inner Summer or Inner Autumn Phase, and see how they affect your energy, mood, and well-being. Ruby Rhythm is designed to empower you with knowledge, support, and cute animals to make every day of your cycle a little more fun. Your data never leaves your device and is never used or shared for advertising, data collection, or marketing purposes.
C1B
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C1B is a caregiving log and planning tool. Keep the important details together for yourself or someone you support, from daily routines to appointments, notes, medications, and care history. Use C1B to: - Track medications, treatments, vitals, meals, fluids, sleep, hygiene, activity, symptoms, tasks, notes, and appointments - Build daily care checklists from reusable templates - Mark care items as done, in progress, pending, delayed, skipped, cancelled, and more - Review care history, photos, notes, appointments, timelines, and day plans - Share care profiles with trusted family members or helpers - Export care history and day plans as PDFs for care conversations or printed handoffs - Discover insights with charts and summaries from the care records you enter - Support for Home Screen widgets, Apple Watch, and Shortcuts for quick access to daily care Care records can include sensitive details. C1B stores your care records on your devices and may sync them through Apple iCloud/CloudKit when available. C1B has no ads, no third-party analytics or tracking SDKs, and no selling of your data. # Plans and In-App Purchases C1B offers Free, Plus, and Unlimited access. Free includes: - One care profile - Daily care tracking - Day templates - Medication library - Contact library - Appointments - Notes - Care planning up to 3 days ahead C1B Plus is available as a monthly or annual auto-renewable subscription. Plus includes everything in Free and unlocks: - Multiple care profiles - Shared care profiles - Read/write access to shared profiles when you have permission - PDF exports of care history and day plans - Care Insights, including charts and summaries from the care records you enter - Care planning more than 3 days ahead - Duplicate days - Replacement plans - Date-range day planning - New Plus features as they launch C1B Unlimited is a one-time purchase. Unlimited unlocks the same premium features as C1B Plus, including new Plus features as they launch, without a recurring subscription renewal. To read or update a shared care profile, each participant needs C1B Plus or C1B Unlimited, unless access is provided through eligible Apple Family Sharing. Prices and available plans are shown in the App Store before purchase and may vary by region. # Subscription and Purchase Terms Purchases are billed through your Apple Account. Payment is charged to your Apple Account at confirmation of purchase. C1B Plus subscriptions renew automatically at the selected monthly or annual duration unless canceled at least 24 hours before the end of the current period. Your Apple Account may be charged for renewal within 24 hours before the end of the current period. You can manage or cancel subscriptions in your Apple Account settings after purchase. Cancellation stops future renewals, but access to paid features may continue until the end of the current paid period. C1B Unlimited is a one-time purchase and does not renew. C1B does not receive or store your full payment card information. Subscription management, billing, receipts, refunds, and cancellations are handled by Apple through your Apple Account. # Important Medical Disclaimer C1B is not a medical device, clinical record system, emergency service, or source of medical advice. C1B does not diagnose, treat, prevent, or cure any disease or condition, recommend care decisions, monitor emergencies, or replace professional medical advice, clinical judgment, emergency services, or instructions from qualified healthcare professionals. Always seek advice from qualified healthcare professionals before making medical decisions. In an emergency, contact local emergency services. Privacy Policy: https://c1b.app/privacy/ Terms of Use: https://c1b.app/terms/ Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Ruby Rhythm at none against C1B's 3. Ruby Rhythm also leads on iOS requirement (16.4 vs 26.2). On price, ads 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. C1B sells 3 in-app purchases, starting at $7.99 per month. Ruby Rhythm asks for nothing beyond the download.
| Parameter | Ruby Rhythm | C1B |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | — | Every 10 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, Apple Watch — better |
| Requires iOS | 16.4 — better | 26.2 |
| Further details — not scored | ||
| Size | 3 MB | 34 MB |
| Age rating | 4+ | 12+ |
| Developer | Vampire Squids LLC | Adam Tow |
In-app purchases
Ruby Rhythm
No in-app purchases
C1B
- C1B Plus Monthly14 Days trial$7.991 Month
- C1B Plus Annual14 Days trial$79.991 Year
- C1B Unlimited$149.00









