The best alternatives to SpacedTime are Locked.app, Brainscape, and Yak Tack. If these 3 options don't work for you, we've listed a few more alternatives below.
What do you think of SpacedTime?
AssemblyAI— Speech-to-Text API with superhuman accuracy
Do you often forget if you've done something important? I keep coming back to check if I've locked the doors. You can check the toggle when you close the door or something. The app also reminds you when you go out using the geolocation (isn't shared anywhere)
Brainscape is a web and mobile education platform that allows students to study adaptive flashcards.The world's most efficient web & mobile learning platform. Creating a smarter world by simplifying and accelerating the learning process.
SmartCards+ learns what you know and remembers what you forget- and suggests reviews of cards at the optimal interval to remember longer will less effort. SmartCards+ is now a free download.
Spaced Repetition for Twitter combines Twitter with the benefits of Spaced Repetition. If you like a Tweet, it will be delivered straight to your timeline in increasing intervals, thus massively improving the long-term value you get out of Twitter.
MemoStack is a flashcards software that help you memorize more things with less effort. Here are some features: ⏳ Review test with Spaced Repetition 📈 Graph to check daily progress 📙 Dictionary access (currently support English and Spanish)