ChatPDF vs Formative
A detailed comparison to help you choose between ChatPDF and Formative.
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Verdict: Formative wins
Formative scores 4.2/5, edging out ChatPDF at 3.6/5. K-12 teachers and schools that want live visibility into student thinking during instruction — especially math, science and multilingual classrooms needing varied response types and standards-tagged data.
ChatPDF Upload PDFs and ask questions directly to them with AI | Formative Real-time assessment platform for classroom formative evaluation | |
|---|---|---|
| Rating | 3.6 (1 review) | 4.2 (1 review) |
| Pricing Model | freemium | freemium |
| Starting Price | Free tier available | Free tier available |
| Best For | Students and researchers who want fast, page-cited answers from individual papers, contracts or manuals without committing to a heavy research platform. | K-12 teachers and schools that want live visibility into student thinking during instruction — especially math, science and multilingual classrooms needing varied response types and standards-tagged data. |
| Free Tier | ||
| API Access | ||
| Team Features | ||
| Open Source | ||
| Tags | free tier | free tierteam features |
| Visit ChatPDF → | Visit Formative → |
ChatPDF
Pros
- + Page-level citations on answers — the single feature that makes it more trustworthy than pasting a PDF into a chatbot
- + Free tier usable without an account: two documents and twenty questions per day at time of writing
- + Scope has grown past PDFs: Word, PowerPoint, Markdown, text, YouTube videos and web pages, with multi-file folders
- + Language-agnostic — ask in a different language from the document's and it bridges them
- + Study toolkit around the chat: summaries, flashcards, slides exportable to .pptx, per chatpdf.com
Cons
- - No public pricing page; Plus appeared at $19.99/mo (USD tracker) and €16.99/mo (euro checkout) in the same month, and varied between visits
- - Underlying models are GPT-4o/GPT-4o-mini per the company — behind the frontier on hard multi-document reasoning in late 2026
- - Scanned PDFs and photos are not supported per the mobile app's own listing, contradicting older OCR marketing claims
- - Free tier caps at 20 questions/day and 120-page files; a single serious session exhausts it
- - Plus still caps files at 2,000 pages / 32MB with no overage option, which is tight for heavy contract or literature work
Formative
Pros
- + Live response view shows student work as it is created — in my use this is the strongest mid-lesson intervention workflow in the assessment category
- + Response breadth beats quiz tools: drawing/whiteboard, graphing, equations, image annotation, audio and video responses alongside 20+ item types
- + Real digitisation of old material — upload a PDF or Doc and add response fields to it instead of rebuilding
- + Pricing is concrete and moderate: $249/teacher/year with a genuinely usable Free Teacher plan and a 14-day trial without a credit card (formative.com/plans, at time of writing)
- + District depth is real: standards dashboards, common assessments, Item Bank, Respondus LockDown, and Luna Configuration Studio for district AI guardrails
Cons
- - Collaboration is gated — shared libraries, common assessments and org dashboards require the school tier or above; no family/caregiver access at all
- - AI scoring of complex open-ended work is uneven and needs teacher review (consistent with a 21-teacher AIME 2025 pilot); no plagiarism checking
- - Since February 5, 2026 new monthly subscriptions are gone — individuals must buy annual despite school-year-shaped need; plan names keep changing post-Newsela
- - Video embeds depend on YouTube, which many districts block; a long-running user complaint without a built-in video-hosting alternative
- - Item formats skew to right/wrong answers; richer demonstration of learning needs custom rubric work on top
Frequently Asked Questions
Which is better, ChatPDF or Formative?▼
Formative scores higher at 4.2/5 vs 3.6/5 for ChatPDF, making it the better-rated option in our comparison.
What is the difference between ChatPDF and Formative?▼
ChatPDF: ChatPDF lets you upload a PDF and ask questions about it in plain language, returning answers and summaries drawn from the document itself. It also handles other file types, videos and web pages, and bundles flashcard, writing and AI-detection tools. Formative: Formative is a classroom assessment tool that shows teachers each student's work as they do it, so they can respond during the lesson.
Is ChatPDF or Formative more affordable?▼
ChatPDF starts at €0/mo, Formative starts at €0/mo. Check the comparison table above for current pricing.
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