Nightspar vs Renderster
Neck and neck on boosts. Profiles, pricing and deals below.
MCP server that saves words from your AI chats as spaced-repetition flashcards
community boosts
⚡ 0
pricing
Free · Free during the beta
what it is
Nightspar is a vocabulary app with a built-in MCP server. Connect Claude, ChatGPT, Cursor, VS Code or Claude Code once, and the assistant you already chat with can save words into your library mid-conversation, a single word or several at once, and read back what you have saved. Ask what a word in a sentence means, then say "add it to Nightspar". The phrase is saved with the context from that conversation and gets a full AI-built flashcard: meanings, translation, pronunciation, examples and audio. Reviews are scheduled with FSRS, the algorithm Anki uses. Sign-in happens in a browser window, with no keys or tokens to paste. 34 languages, free during the beta.
Turn long videos into captioned vertical clips, in one click or one API call
community boosts
⚡ 0
pricing
Freemium
what it is
Renderster turns long videos from YouTube, TikTok, Instagram, X or Facebook into ready-to-post vertical clips with captions, titles and hashtags, and it also dubs, auto-edits and transcribes. It is made for creators, video editors and agencies: use it in the browser, ask for it inside ChatGPT or Claude, or automate it by API with n8n, Make or your own code. The Free plan comes with 60 credits; paid plans are Creator at US$12, Starter at US$29, Pro at US$79 and Business at US$199 a month, with a 7-day free trial. In Brazil prices are in reais, and Starter can be paid with Pix: R$97 for 30 days or R$970 for 12 months.