BP Lens
iPhone · iOS 26+

Three photos.
Zero typing.

BP Lens is a blood pressure diary that reads your monitor for you. Take your 3 readings in a row, photograph the screen after each one, and BP Lens reads the numbers, saves the average and shows you how it changes over time.

Coming soon to theApp Store How it works
  • No account, no sign-in
  • Your records stay on your iPhone
  • No ads, no tracking
Illustration of a home blood pressure monitor on a dark table, its glowing screen captured by three translucent photo frames
Illustration made for BP Lens.

How it works

Home blood pressure guidelines ask for several readings in a row. BP Lens turns them into one clean record.

  1. A blood pressure monitor with three photo frames around its screen
    Step 1Measure 3 times, snap 3 photosUse your own monitor as usual. After each reading, photograph its screen with the in-app camera or pick the photos from your library.
  2. Three glowing points merging into a single pulse line
    Step 2One average, ready to saveBP Lens reads systolic, diastolic and pulse from each photo, shows you the 3 readings and their average, and lets you correct any number before saving.
  3. An iPhone under a glass dome with a heart symbol on its screen
    Step 3Kept on your iPhoneYour records, reports and optional health profile live on your iPhone. We don't keep your photos — not on our server and not on your iPhone.

Everything your readings need

A calm, private diary for the numbers you already measure at home.

📷Reads your monitorThree photos of the monitor's screen become three readings and their average. If you'd rather not use photos, enter your readings by hand.
🏷️A category in plain wordsEvery record shows its informational category from the 2017 AHA/ACC guideline — from Normal to Hypertensive crisis — explained simply.
🗂️History, day by dayEvery record grouped by day, with its 3 readings. Open one to see the details, edit it or delete it.
📈Trend over 7, 30 or 90 daysSee how your systolic and diastolic change over time, and export your whole history as a CSV file for Numbers, Excel or your doctor.
📝A report every 3 daysYour 7-day and 30-day averages, morning and evening, variability and trend, with your level in plain words. Share it, and get an optional notice when a new one is ready.
🔒Private by designNo account, no ads and no tracking. An optional health profile (age, weight, habits) personalizes your report and never leaves your iPhone.

The story behind BP Lens

Measuring blood pressure at home is easy. Keeping the log is the part people drop.

The home protocol asks for several readings in a row, so the routine turns into copying numbers into a notebook or a spreadsheet — and after a few weeks, it stops. BP Lens removes that step: you keep using your own monitor, take three photos of its screen, and the record is ready, with its average and category.

It asks for no account and keeps your records on your iPhone, because health numbers belong to you. Made in Mexico by Christian Irack at Ingeniería.dev.

$2.99 USD one-time — no subscriptions, no in-app purchases

BP Lens is a paid download on the iOS App Store: $2.99 USD, one-time (prices vary by country). Pay once, keep forever. No subscriptions, no premium tiers, no in-app purchases, no ads. Every feature is unlocked from the first launch.

The purchase is handled by Apple through your Apple ID. Family Sharing is supported. Photo reading includes a generous monthly limit of photo readings per device to prevent abuse; entering readings by hand has no limit.

Coming soon to the App Store. Full details in the Terms and Support pages.

BP Lens is not a medical device BP Lens is not a medical device and does not replace the advice of a health professional. It does not diagnose, treat or prevent any condition, and its categories are for information only. In an emergency, call your local emergency number.

BP Lens no es un dispositivo médico y no sustituye el consejo de un profesional de la salud; en una emergencia, llama a tu número local de emergencias.

O BP Lens não é um dispositivo médico e não substitui a orientação de um profissional de saúde; em uma emergência, ligue para o número de emergência local.

Categories follow the 2017 ACC/AHA blood pressure guideline: Whelton PK, et al. Hypertension. 2018;71:e13–e115. doi:10.1161/HYP.0000000000000065 · PubMed.

Legal & support

Your blood pressure log, without the notebook

Measure as you always do. Let BP Lens keep the record.

Coming soon to theApp Store

Ingeniería.dev — Christian Irack · [email protected]