Cuff: Blood Pressure Log
BP diary. Pay once.
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
The honest blood pressure diary: 10 readings free, then pay once and everything is unlocked forever. No subscription, no account, no ads.
Your first 10 readings are free. Then pay once and everything is unlocked forever — no subscription, ever. Cuff is a blood pressure diary that respects your readings, your money, and your privacy. You measure with your own cuff; Cuff keeps the log. No subscription, no account, no ads, and your readings never leave your phone.
If you've tried other blood pressure apps, you know the tricks: weekly subscriptions, your own history locked behind a paywall after two weeks, ads between readings. Cuff is the opposite, on purpose.
TRY IT FREE: YOUR FIRST 10 READINGS
• Log your first 10 readings at no cost, with every core diary feature
• Your history, CSV export and backups stay free forever, even if you never pay — data you entered is never locked
• Fast, large-type entry built for daily use: systolic, diastolic, optional pulse, notes, editable time
• Color-coded history using the published chart you choose: AHA (US), ESC/ESH (Europe), or NICE (UK)
• Seven-day home-monitoring series: morning and evening readings, one average at the end — the routine many doctors ask for
• CSV import and export, plus full backup and restore — your data is yours, take it anywhere
• Latest-reading card so the number you care about is always on top
• Full Dynamic Type and VoiceOver support, plus a proper dark mode
CUFF PRO — PAY ONCE, EVERYTHING UNLOCKED FOREVER
One small purchase, no renewals, no tiers. It unlocks everything, for good:
• Unlimited logging
• Doctor report: a clean PDF for any date range — readings table, averages, morning/evening split, category distribution — made to hand to your physician, generated entirely on your phone
• Charts & trends: 7/30/90-day lines with moving averages and a morning-vs-evening comparison
• Tags: left/right arm, sitting or lying, before/after medication, or your own
• Measurement reminders at the times your doctor asked for
• Multiple profiles: track a spouse or parent on the same phone
• Apple Health: write readings to Health, or import the ones your smart cuff already saved
PRIVATE BY DESIGN
Your readings never leave your phone. There is no account to create, no cloud, no analytics, no tracking. The only data Cuff sends is an anonymous crash report when something breaks, so we can fix it — it never contains your readings. Health data syncs only into your own Apple Health store, and only if you turn it on.
Cuff is a diary, not a medical device. It does not measure blood pressure, diagnose any condition, or provide medical advice. Category colors follow the published chart you choose (AHA, ESC/ESH, or NICE), for reference only. Always consult your doctor about your readings.
Ratings & Reviews
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New: a Send feedback option, so you can reach us right from the app. Plus small fixes and polish.
The developer, Argon Labs LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Argon Labs LLC
- Size
- 52.6 MB
- Category
- Medical
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Infrequent
Medical Treatment information
Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Cuff Pro $4.99
- Copyright
- © 2026 Argon Labs LLC