Software Alternatives & Startups

AFFiNE VS Stract API

Compare AFFiNE VS Stract API and see what are their differences

AFFiNE

All in one KnowledgeOS, Open alternative to Notion&Miro.

Rating
0 reviews
Pricing
Open source Free $6.75 / Monthly (Affine Cloud)
Stract API

Upload PDFs, office docs, or scans, describe the data you need in plain language, and get a spreadsheet, CSV, or JSON back. No manual entry, no brittle templates.

Rating
0 reviews
Pricing
Paid Free trial
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, AFFiNE seems to be more popular. It has been mentioned 32 times since March 2021.

social mentions
32 vs 0
Note Taking popularity
100% vs 0%
alternatives listed
240+ vs 1

Base details

Website, pricing, platforms and company facts side by side.

AFFiNE
Stract API
Website affine.pro stract-api.com
Pricing
Open source Free $6.75 / Monthly (Affine Cloud) Official pricing
Paid Free trial Official pricing
Platforms
Mac OSX Google Chrome Windows
Browser REST API
Company Startup from Singapore · 20 - 49 employees Startup from the United States · 1 - 9 employees · 2026
Listed in

Features and specs

What each product offers, as listed by its team.

AFFiNE 4 features
Stract API 0 features
  • Write
    Notion like block-based page editor
  • Draw
    Miro like free style canvas
  • AFFiNE AI
    AI copilot for reading,drafting,reviewing,brainstorming,diagraming and more
  • Database
    Airtable like structured data management(beta)

No features have been listed yet.

Analysis

An editorial look at what each product does well and who it suits.

AFFiNE
Stract API

Overall verdict

  • AFFiNE is a robust platform, particularly valuable for those seeking a well-rounded, adaptable productivity tool. It offers a wide array of features that support efficient project management through its intuitive interface. Overall, AFFiNE is considered a good choice for those in need of a reliable productivity and collaboration tool.

Why this product is good

  • AFFiNE is known for its user-friendly design, offering a range of productivity tools that streamline workflow processes. Its features cater to both individual and team-based tasks, making it versatile for various project management needs. The platform integrates well with other software, providing seamless communication and collaboration. Additionally, AFFiNE is consistently updated based on user feedback, ensuring it meets the evolving needs of its users.

Recommended for

    AFFiNE is recommended for freelancers, small-to-medium businesses, and project managers who require effective task management and team collaboration solutions. It is especially suited for organizations looking for an easy-to-use platform that can scale with their growth and adapt to various workflow requirements.

No analysis of Stract API yet.

Videos

Walkthroughs and reviews on video.

AFFiNE 3 videos + Add
Stract API 0 videos + Add

AFFiNE AI: Notion Meets Infinite Canvas!

More videos

  • - Work Culture Life At New Affine
  • - Affine - Notion Killer?!

No Stract API videos yet. You could help us improve this page by suggesting one.

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
AFFiNE
Stract API
100% 100%
0% 0%
0% 0%
100% 100%
100% 100%
0% 0%
0% 0%
100% 100%

Questions & Answers

As answered by people managing AFFiNE and Stract API.

What makes your product unique?

AFFiNE's answer

AFFiNE is unique because it combines flexibility with strong privacy protections, making it ideal for users who value both control over their workspace and data security. The platform’s canvas feature allows for a highly customizable layout, enabling users to visually organize information in a free-form, drag-and-drop manner. This flexibility supports diverse workflows, from brainstorming and project planning to note-taking and task management, making AFFiNE a versatile tool adaptable to personal and professional needs.

What sets AFFiNE apart even further is its commitment to privacy with a local-first approach. This means data is stored locally on users’ devices, safeguarding sensitive information and ensuring full offline access. As an open-source platform, AFFiNE also invites community contributions and customization, allowing users to shape the tool to fit their specific requirements. This blend of privacy, flexibility, and user-driven development creates a truly unique productivity solution.

Stract API's answer:

Stract API is different because it lets the people closest to the questions get answers straight from their documents, with no templates, no custom tooling and no manual data entry. You upload your files, describe the data you need in plain language, and Stract API runs every document in the batch from start to finish. It returns clean, structured results you can put to work right away. You choose the model that fits the job, from fast, economical options for high-volume work to the newest, most capable LLMs for your highest-stakes analysis. Under the hood, it draws on techniques from the latest AI research to improve the quality of what gets extracted. The same analysis costs less than 10% of the equivalent staff time, so your team can skip the grind and go straight to analysis. And because sensitive work is the norm for many of your users, Stract API is fully SOC2 compliant, so your documents stay yours.

Who are some of the biggest customers of your product?

Stract API's answer:

Legal services and title companies are growing segments for Stract API

Which are the primary technologies used for building your product?

Stract API's answer:

The primary technologies used in build Stract API are LLMs, Typescript, React, and Java.

Why should a person choose your product over its competitors?

Stract API's answer:

A person should choose Stract API over its competitors because it gets them from a pile of documents to usable data with the least effort and risk. They describe what they need in plain language, so they don't build templates or learn a tool's vocabulary. They can use the point-and-click UI or the API for automated workflows, so the same product works for a one-off project and for a recurring pipeline. They also keep control over the tradeoff that matters most to them. They pick the model for each job, from fast, economical options for high-volume work to the newest, most capable LLMs for high-stakes analysis, instead of paying top-tier prices for everything. The extraction itself uses techniques from the latest AI research to improve quality. The cost is under 10% of the equivalent staff time, and results come back fast even on huge batches. Finally, Stract API is fully SOC2 compliant, which matters to teams handling case files, sources and survey data. Together, that means a team clears its "Needs Attention" pile and gets to analysis faster, without trading security or depth for speed.

How would you describe the primary audience of your product?

Stract API's answer:

The primary audience for Stract API is small-to-mid-sized teams, along with enterprises, that run recurring, document-heavy workflows and need to pull consistent information out of growing batches of files faster than manual review allows. These teams are typically staff-constrained, facing rising intake volumes of contracts, case files, forms or survey responses, and working from question lists that keep changing over time. Buyers tend to be operations leaders, legal and contract review leads, insurance claims intake leads, research leads, marketing and CRM operations managers, and engineering teams responsible for pipeline automation. Day-to-day users include the document reviewers who need the extracted information and the developers and analysts who feed that structured output into downstream systems. The audience spans insurance and claims, legal (contracts, discovery and case files), journalism (FOIA releases, court records and meeting minutes), marketing (reviews, support tickets and call transcripts), social science (surveys, interviews and field notes) and academic research. Stract API is a weaker fit for organizations that only need occasional one-off extraction from a handful of documents, or teams committed to strictly template- or regex-driven extraction rather than plain-language field specifications.

What's the story behind your product?

Stract API's answer:

Stract API grew out of founder Matt Moreno's repeated frustration with the same problem. At a construction tech startup in Google's accelerator, his team built an LLM feature that matched a crew's plain-language daily report to labor and material options. It worked, but it was fragile. Parsing the output was hard, bad output was constant, and any change to the structure broke it. When he asked a Google director whether a product existed to extract arbitrary structured data from unstructured text, the director said no, but that Google probably should build one. Later, on a venture to automate land title research, he again spent tens of hours building flexible document extraction. That work pulled him away from the core mission, and he wished a third-party service would handle it. When he had time this summer (2026), he found few existing solutions. Remembering the director's words, he built Stract API, which took five months to reach MVP. It lets users describe the information they want, from simple facts to judgment-heavy analysis, and returns a spreadsheet, CSV or JSON from their documents.

User comments

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

AFFiNE no reviews yet
Stract API no reviews yet

We have no reviews of Stract API yet. Be the first one to post

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

AFFiNE 32 mentions
Stract API 0 mentions
  • Notion leaks email addresses of all editors of any public page
    I'd say Affine or Obsidian. Obsidian is built on-top of just markdown files, so you can do whatever you want with them. E.g. If you need multiplayer editing you could use 3rd party solutions or even something like HedgeDoc. Affine is... - Source: Hacker News / 7 months ago
  • Notion leaks email addresses of all editors of any public page
    I wrote a more detailed comparison of Notion vs Obsidian here: https://bryanhogan.com/blog/notion-obsidian-comparison I kinda dislike where Notion is heading though, forcing more and more things on their users without any ways to disable... - Source: Hacker News / 7 months ago
  • AFFiNE vs AppFlowy: Open-Source Notion Clones
    AFFiNE is a workspace that merges docs, whiteboards, and databases into one tool. The editor supports block-based writing similar to Notion, but adds an infinite canvas (whiteboard) mode where blocks can be freely positioned. It's built... - Source: dev.to / 9 months ago

View more

Tracking Stract API since Nov 2026.

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