Alternatives
Products that do what SitzProbe.app: Spaced Repetition for All does
Track and analyze your learning and progress for free!
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Hey HN, I am a student shipping apps in my free time. This is my 4th for the year! Non-fic books and podcasts have been part of my life for years now but I always struggled with remembering what I’ve read or listened to. I wanted it to stick even after years. My notes list grew large but I never really revisited them. That’s why I created GinkgoNotes. You can enter notes you want to recall and leave it to the app to create a personalised (based on spaced repetition) email schedule. That means you’ll get your notes emailed to you a couple of times exactly when you should read them again…
2024 · ginkgonotes.com
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I am a software developer and in the last few months after recently becoming a father I was barely finding time for a proper workout. Recently I was reading about new research on Snack Exercises and how beneficial mini workouts of less than 2mins every so often, during the day are to our body. So, I decided to build an iOS App for me and others to help with this. The app generates a list of exercises that I need to tick to complete daily or loose my streak. The algorithm takes into account muscle groups and balancing the exercises to hit most main muscles. I also stayed going through all…
2025 · shortreps.com
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Hi HN, I’m the founder of Zesfy, a productivity app that I’ve been developing over the past few years. It’s designed to seamlessly integrate your tasks with your calendar, allowing you to transform your to-do lists into actionable events in just seconds. Here are some of its key features: - Task Progress: Automatically update your progress based on subtasks completed - Step: Create step-by-step breakdown of the subtask - Target: Organize tasks with due date - Session: Insert multiple tasks to calendar event - Space: Filter event from specific sets of calendars I recently introduced new…
2024 · apps.apple.com
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Hi HN, I made this because I needed to track how much I work and on what. Timeretain allows you to track time using a fast, private feed of time cards. It displays your stats next to it, and you can filter to zoom in on a description or tag. You can always export what's in view. It's different from other time trackers because it's powerful and minimalist. Here's how I use it. I need to hold myself accountable. I want to know how much I've worked in a week, and Timeretain immediately shows that — no need to create extensive 'reports'. Next, a log of what I did is useful for standup. I can get…
2023 · timeretain.com
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Hi everyone. I am built a small application on top of FSI German basic course and I need some feedback regarding it. It is a small web app. Currently only Unit 01 is available. I will feed in the rest of the units later down the road as I use it myself. Some of the features includes - Slow and fast audio with every single word and sentence in this app. You can play them with a click of a button. No need to rewind a tap back and forth. - Flashcards with keyboard control to quickly go through the material and drill them out. You can access the website at https://detawk.com/ .…
Apr 2026 · detawk.com
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I've been working on a side project called Streak.ly with a friend of mine for the past month or so; it's intended to help keep you motivated to do otherwise mundane daily tasks (like do 10 pushups, read for an hour, etc.) by letting you log "streaks" — consecutive days in a row of doing something. It's in private alpha/beta/gamma/whatever right now (has some rough edges to clean up), but is more or less functionally complete and pretty stable. I'm a big fan of the Seinfeld calendar, and have seen other services which do similar things but were unsatisfying to use, either from an aesthetic…
2010
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Owl is built a spaced repetition app. We built it for ourselves mostly because we were unhappy with Anki from a UX perspective, and are now releasing it to everybody else. It is super tiny, but - we think - also pretty good. You can add your own decks manually, or generate them from a PDF (think academic papers, which is how I use that feature) or a prompt. There are no emails except study reminders (when there are cards to study). You can also use our "AI tutor" to review cards conversationally. Looking forward to your feedback!
2025 · owl.cards
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