DocTracker – track client documents and send reminders
Yet another document tracker, but the accountant niche is specific.

Offline reminder app for car registration and dental visits—but Apple Reminders, Google Tasks, and dozens of habit trackers already do this.
Adults managing recurring household and personal maintenance tasks; people who forget routine obligations.
Apple Reminders · Google Tasks · Habitica
I made an Android (iOS coming soon) app called Pebbles for the recurring chores of being an adult: car registration, filters, smoke alarms, dentist, appliance servicing, pet meds... the list of tiny obligations that somehow become emergency situations.
Idea: turn “boulders” into “pebbles” by reminding you early, consistently, and on a schedule that doesn’t make you hate your phone.
Highlights • Offline-first (no account required) • Granular recurring reminders + notification windows • Built for the “I’ll definitely remember” crowd (that's me)
Link: https://play.google.com/store/apps/details?id=com.pebbles.ap...
If you try it: tell me what’s missing, what’s annoying, and what you’d pay for (if anything) once sync exists.
Yet another document tracker, but the accountant niche is specific.
Memento mori emails when calendar reminders and existing apps already do this.
Memento Mori newsletter with beautiful typography and a pay-to-unsubscribe joke.
On-device AI posture detection via webcam without cloud processing or subscriptions.
Email reminders without login, but Google and Apple Reminders already exist.
Automates invoice chasing but costs $19/month in a crowded market.