Custom Formulas vs Chronir

This app is easy to use, but unlike simpler apps, multiple entered values can be fed into multiple formulas and multiple output values can be displayed. The output of one formula in a group can be fed into the next by using the same variable name. Related formulas can be grouped into categories to make them easy to find. e.g. Maths formulas, Surveying formulas, Loan interest formulas etc. The order of variables displayed to the user can be changed, as can the number of decimal digits of precision shown in the output fields. You can easily share formulas with other users of the app by emailing them. Three example formulas are pre-installed with the app. In order of increasing complexity they are: slope percentage, compound interest, and point scale factor.

Chronir is the alarm app for everything your regular reminders forget. Rent due on the 1st. Car insurance renewal. Annual furnace inspection. Pet vaccinations. These aren't tasks you can afford to miss — but a silent notification buried under 50 others isn't enough. Chronir treats your long-cycle obligations with the urgency of a morning wake-up alarm: full-screen, persistent, undeniable. HOW IT WORKS Set an alarm for any recurring schedule — weekly, monthly, annually, or one-time. When the time comes, Chronir fires a real alarm with sound and a full-screen alert. No quiet notification. No easy dismiss. You acknowledge it, snooze it, or mark it done. KEY FEATURES — Real Alarms, Not Reminders Full-screen firing with persistent sound. Fires even in Do Not Disturb and on your lock screen. This is an alarm, not a notification. — Flexible Scheduling Weekly (every Sunday), monthly (1st and 15th), annual (Feb 28), or one-time (car registration due March 1). You set it once, Chronir handles the rest. — Siri & Shortcuts "Create an alarm in Chronir" — set alarms by voice or automate them with Shortcuts. Ask "When is my next alarm?" or "Show my alarms" hands-free. — Categories & Grouping Organize alarms by category — Home, Health, Finance, Vehicle, Work, Personal, Pets, Subscriptions. Group view keeps your list clean. — Smart Snooze Snooze for 1 hour, 1 day, or 1 week. Persistent alarms keep firing until you take action. — Wallpaper Personalization Set a custom background photo with pinch-to-zoom and drag-to-reposition. Your alarm list, your style. CHRONIR PLUS ($1.99/month) Unlock unlimited alarms, custom snooze intervals, pre-alarm warnings, photo attachments, and completion history with streaks. Built for homeowners, caregivers, pet owners, freelancers, and anyone who needs long-cycle accountability — not another to-do list.