MathBlocker vs Richdown

MathBlocker puts a math problem between you and the apps you open too much. You pick the apps you want blocked. When you try to open one after your time's up, a math question shows up instead. You answer it, you get a few minutes back. You don't, the app stays closed. The questions are real. They come from the same problem sets people use to study for the SAT, ACT, AMC, and AIME. You can set the difficulty. Easy questions if you just want a speed bump. Harder ones if you actually want to stop scrolling. Features - Block any app or category — social, video, games, news, browsers - Pick your difficulty, from warmup arithmetic to competition-level - Choose your problem set: SAT, ACT, AMC, AIME, Putnam, or general practice - Earn time back per problem solved (you set how much) - Daily, weekly, and per-app limits - Schedule blocks by time of day (bedtime, study hours, work hours) - Dashboard with usage broken down by app, hour, and day - Custom block screen so it actually feels like a stop sign - Works with Family Sharing if you're setting it up for someone younger A few ways people use it: blocking social apps during work hours. Locking everything after 10pm with hard math. Pairing it with actual SAT prep so the time you would've spent scrolling becomes practice instead. Everything stays on your phone. No account, no login, no data sent anywhere. iOS 16 and up. iPhone only.

Plain Markdown, beautiful the moment you type it. Richdown is a focused Markdown editor that never makes you switch between "writing" and "reading." Headings, tables, code, quotes, task lists, even Mermaid diagrams render inline as you go — so you stay in the flow and watch the finished page take shape. And Richdown doesn't lock your files inside someone else's cloud. Open folders in iCloud Drive or on your device — or work straight in your own GitHub repositories. — Write — • Inline rich preview that keeps up with your typing • Tables, code blocks, quotes, task lists, Mermaid diagrams and images • Outline view and in-file search to navigate long documents • A Markdown toolbar above the keyboard for quick formatting — Keep — • Open iCloud Drive or on-device folders and edit in place • Browse subfolders; create, rename and delete files; sort by name or date • Pull to refresh. Files are stored on your device (iCloud / local) — nothing is uploaded to our servers — Connect (GitHub, optional) — • Open your own GitHub repositories, edit, and commit in one go • Browse commit history, diff a past version, and restore it • Switch and create branches; open pull requests • Traffic goes straight from your device to GitHub; your access token is kept only in the iOS Keychain Note: commit, history, diff and restore are GitHub-repository features (plain folders support editing and saving). — iPad — • A true two-pane layout: file list on the left, preview on the right Fast, private, and honest about your files. Distributed by StructWorks · Contact: support@structworks.dev