
Butterfast — AI Study Companion
Butterfast is an AI-powered study companion that transforms messy notes, PDFs, and long YouTube lectures into structured study guides, flashcards, adaptive quizzes, and interactive mind maps in seconds. Built with spaced repetition and AI personalization, Butterfast helps students remember more, study faster, and stop cramming before exams.

Butterfast — AI Study Companion
Butterfast is an AI-powered study companion that transforms messy notes, PDFs, and long YouTube lectures into structured study guides, flashcards, adaptive quizzes, and interactive mind maps in seconds. Built with spaced repetition and AI personalization, Butterfast helps students remember more, study faster, and stop cramming before exams.
Ranked #7450 on TrustMRR
No active subscriptions
81 followers on 𝕏
Revenue is verified with
Polar API key.Last updated: Nov 5, 2026, 09:04 AM
Transform your prompts into stunning mobile app designs instantly. No design skills needed—just describe what you want.
Eliminate the friction between your ideas and a finished mobile app design.
Audience
Designers
Pricing
Simple, transparent pricing that grows with you. No hidden fees, ever.
Domain Rating
butterfast.com
Ahrefs Domain Rating measures backlink profile strength on a 0 to 100 logarithmic scale.
Tech stack
Frontend
Backend
Screenshot
butterfast.comProduct updates
More startups for sale
View MarketplaceFlowPost
FlowPost is an AI-powered social media platform for creating, scheduling, and publishing content from one workspace. It supports nine platforms, with voice-guided writing, image and video generation, a content calendar, and publishing automations.
Revenue (30d)
$230
Asking Price
$13k
$2.6k
Multiple
0.9x
GEHIRN.md
The tool u need to win in AI Search.
Revenue (30d)
$692
Asking Price
$22k
$15k
Multiple
1.8x
ReplyCurrent
ReplyCurrent is an AI customer support SaaS I built to help businesses answer customer questions automatically. You connect your website, help center, or documents, and it creates an AI chatbot that answers visitors using your own content. It also supports lead capture, conversation tracking, and a dashboard to see what customers are asking. The goal is simple: help businesses save time on support while giving visitors quick, accurate answers.
Revenue (30d)
$274
Asking Price
$1.8k
Multiple
0.5x
VoiceBrief
VoiceBrief is a SaaS learning platform that turns PDFs, web pages, and text into original-document audio, synced read-along, summaries, quizzes, flashcards, and slides. Customers discover VoiceBrief at voicebrief.io and subscribe to VoiceBrief Pro for $19.99 per month.
Revenue (30d)
$53
Asking Price
$20k
$12k
Multiple
18.9x
RemJobs
RemJobs is a map of 252,000+ startups in 178 countries. Click any startup to see who founded it, with their LinkedIn, the careers page and a founder email where we have one. Job seekers use it to reach founders directly instead of applying into a pile. Free to explore, from $3 a week to unlock founder details.
Revenue (30d)
$50
Asking Price
$2.5k
Multiple
4.2x
LipsyncX
Create Lip Sync AI videos from photos or existing videos. Add text or audio for talking photos, singing clips, video dubbing, and multilingual avatars.
Revenue (30d)
$963
Asking Price
$18k
Multiple
1.6x