WhittleOS vs Buvard

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

WhittleOS compared with Buvard
Detail	WhittleOS	Buvard
What it does	A startup decision engine for solo founders that kills weak ideas before they waste your months	Free AI Anki flashcard generator from lectures, PDFs and notes
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	FR
Pricing model	Paid	Freemium
Pricing	Starter: $19 (2 credits); Founder Discovery Pass: $49 (6 credits); Multi-Market: $99 (15 credits); Working Founder: $149 (30 credits). Credits never expire. New accounts receive 2 free credits for any run except Discovery.	Free: 600 cards per month, 4 decks per month, question-and-answer format, 15 images per month. Pro: €9 for 1 month (paid once, no renewal) with 6,000 cards per month, unlimited decks up to 1,500 cards each, cloze deletions and multiple choice, language mode, 200 images per month.
Key features	12 deal-breaker checks for evaluating ideas Market discovery with live searches across real sources Whittle Score ranked 0–100 from fixed rubric computed in code Build it / Test it first / Drop it verdict with reasons Evidence linked to source pages or marked not verified Up to 5 ranked idea candidates per Discovery run Deep-dive modules: Kill My Idea, Pricing Power, Support Burden, Platform Risk, Pivot Wedge Prepaid credits with no expiration Free founder profile read and 2 free credits on signup Async-only validation with no customer calls required	Mathematics and LaTeX formula support Language-learning mode with front/back language selection Three card formats: Q&A, cloze deletions, and multiple choice Automatic language detection Adjustable card density settings Full generation history with date and statistics Native .apkg export for Anki ecosystem Supports PDFs, Word documents, text files, images and handwritten pages In-app review and editing before export Works with multiple Anki apps: Anki, AnkiMobile, AnkiDroid, and others
What makes it different	No subscription or sales calls—pay per decision with credits that never expire	Generates up to 1,500 cards in one go from a single document Creates flashcards in approximately 30 seconds Free to start with no credit card required Paid passes have no automatic renewal or hidden charges Does one thing exceptionally well: turns material into accurate, clean, immediately usable cards
Community votes	0	0
DR (Domain Rating by Ahrefs)	4 +1 (up) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	18	0
Citation Flow (Majestic)	24	4
Referring domains (Majestic)	51	2

5 details filled in for both companies.

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