CalDaily
Calculator for iPhone

CalDaily

A calculator you keep using, because it remembers the thinking behind each number.

App Store link placeholder — update once the app is published.

What it does

Most calculators forget the moment you close them. CalDaily keeps every result and lets you give it a subject and a type, so a week later you can search for the dinner you split or the loan you compared instead of reconstructing it from memory.

Around that sits a full keypad, a Home Screen widget, eight advanced tools for the everyday maths a plain keypad makes awkward, and one hundred themes to choose from. Everything runs on your device.

Features

One hundred themes

One theme is free. A single non-consumable in-app purchase unlocks the other ninety-nine. There is no subscription.

Home Screen widget

Calculate straight from the Home Screen without opening the app. The widget follows whichever theme you have chosen.

Eight advanced tools

Memory, scientific functions, discount and tax, tip and split, unit conversion, date difference and business days, loan payment, and trip fuel cost.

Try before you unlock

Each advanced tool gives you three free successful results before the unlock, so you can see how it works first.

Defaults you set once

Every tool opens with the defaults you choose, so you are not retyping the same tax rate, party size or fuel price each time.

History that stays findable

Name each entry, give it a type, search by text, browse it grouped by day, filter by tool, and export to CSV through the system share sheet.

Fifty languages

Fully localized in 50 languages, with layouts that hold up in every one of them.

Entirely on device

No account, no cloud sync, no advertising, no analytics, no third-party SDKs, and no network calls.

Privacy in short

  • No account and no sign-in. The app works the moment you open it.
  • No personal data is collected, and there is no third-party advertising or analytics.
  • Your calculations and history stay on your device.
  • A CSV export is created locally and only leaves the device if you share it yourself.
  • The in-app purchase is processed by Apple; the app only receives whether the unlock is active.
Full details are in the privacy policy.

Get in touch

Questions, bug reports and feature suggestions are all welcome. Write to hourstag.app@gmail.com.

The support page answers the most common questions about the free tier, the one-time unlock, restoring a purchase, the widget, history and CSV export.