Thoughtfully made apps for iPhone & iPad.

Kalmaro builds privacy-first apps for the Apple App Store. No tracking, no nonsense — just apps that respect you.

  • No tracking, by construction

    No analytics, no advertising, no third-party SDKs — Kalmaro apps are built on Apple's own frameworks. There is no identifier to follow you between apps, because the app never asks for one.

  • Your data stays yours

    What you record lives on your device and syncs through your own private iCloud. Kalmaro runs no servers that collect it, and has no way to read it.

  • Honest about what's known

    Where an app reports on the real world it shows the date behind the figure, names the source, and says plainly when something hasn't been measured yet. Nothing is averaged, estimated or predicted.

The Tare Today screen: current weight with its 30-day change, and the day’s briefing beneath it.

Tare

Know what your body measurements actually mean.

  • Report tiles for BMI, FFMI, RFM, BRI, waist-to-height and symmetry — not just a weight log.
  • Trend charts with forecasting, and goals tied to the dates that matter.
  • Tracks far more measurements than Apple Health has types for.
  • New in 2.0: competitions with friends, and an Apple Watch app for logging away from your phone.
  • No analytics, no third-party code: everything stays on your device and in your own iCloud.
The Kalmaro Calc menu, listing its eight categories of calculator.

Kalmaro Calc

The everyday calculators you actually need, in one app.

  • 27 calculators across 8 categories — tips, VAT, discounts, loans, mortgages, areas, journeys and more.
  • iPhone, iPad and Mac, with no sign-in and no accounts.
  • 13 are free; the rest unlock with a single one-time purchase.
  • Mileage claims use the current UK HMRC approved rates.
Skerry showing a flood alert and an active storm overflow near Bridlington, each written as a plain sentence.

Skerry

What the water's doing today — in a sentence, not a spreadsheet.

  • Flood alerts, storm overflows and bathing-water risk, each written as a sentence you can act on.
  • Every figure carries the time it was measured, and says which gauge it came from.
  • Your spots on a map, colour-coded by what is happening at each one.
  • Environment Agency, Apple Weather and Water UK data — attributed, never averaged or predicted.
Coming soon to the App StoreMore about Skerry →

Privacy first

Every Kalmaro app is built to respect you. This site itself uses no cookies and no invasive tracking. Read each app's privacy notice on the privacy page.