TODO.73.nu VS ForthWrite

TODO.73.nu's answer

Span mode. Most todo apps force tasks into rigid daily checkboxes or single deadlines. TODO.73.nu lets you define recurring time windows with completion targets. "Exercise 3 times this week" tracks across Monday to Sunday and stops showing up for that time span, after checking it three times. On top of that, optional sync is end-to-end encrypted so the server can't read your tasks. No accounts, no sign-up, just a shared key.

ForthWrite's answer:

ForthWrite learns your writing style from your actual sent mail, not a generic prompt. Every draft sounds like you wrote it because it was trained on how you actually write. It also auto-drafts replies before you open your inbox, so your email is partially handled before your day starts.

TODO.73.nu's answer

Because it handles scheduling patterns that Todoist, Apple Reminders, and Google Tasks simply can't. "Do this 2 times between Monday and Friday." "Complete this 4 times within this date range." Those tools don't understand flexible windows. Beyond that, it's fast, private, and simple. No tracking, no ads, works offline, loads instantly, and your data stays yours.

ForthWrite's answer:

Most AI email tools give you a blank box and a "write for me" button. ForthWrite builds a voice profile from your sent history and gets more accurate with every draft you edit or send. Unlike ChatGPT or Gemini, it works natively inside Gmail and Outlook with no copy-paste. Unlike Lavender, it writes the draft, not just scores it.

TODO.73.nu's answer

People who think in time blocks rather than strict daily routines. You want to run three times this week but don't care which days. You need to finish something within a project window and want to see progress without micromanaging individual dates. Privacy matters to you, but you also just want something that works without creating yet another account.

ForthWrite's answer:

Professionals who send high volumes of relationship-critical email and cannot afford to sound generic: lawyers, financial advisors, recruiters, account executives, consultants, and founders managing their own inbox.

TODO.73.nu's answer

I wanted a simple way to track tasks that need to happen a certain number of times within a flexible window. Exercise 3 times this weekend. Finish something 5 times during a two-week stretch. Every app I tried forced per-day schedules. None of them got the concept of "X times within this span." So I built it. Span mode was the reason this app exists. Everything else (encrypted sync, offline support, the minimal design) grew around it because I wanted something I could actually use every day without giving up privacy or dealing with bloat.

ForthWrite's answer:

Built out of frustration with AI writing tools that produce text that sounds nothing like the person sending it, and as a way to handle large amounts of daily email. The core insight was that your sent mail is the best training data you already have, and no tool was using it.

TODO.73.nu's answer

Vanilla HTML, CSS, and JavaScript. No frameworks, no build tools, no dependencies. The whole app is a single HTML file. Encryption runs through the browser's native Web Crypto API (AES-256-GCM, PBKDF2). Service Workers handle offline use and PWA installation. LZ-String compresses data in localStorage. The backend is a small PHP script that only stores encrypted blobs and never sees your actual data. The whole thing is deliberately simple and self-hostable.

ForthWrite's answer:

Next.js, React, Supabase, Anthropic Claude, OpenAI, Stripe, Vercel, Chrome Extensions API