Core Product
Deep Simplicity Core
Study SEC filings on your phone. Ask questions, jump to the right page, and run Study Actions. Processing stays on your device.
Learn more →On your device
AI Simplified, Returns Amplified™
On-device AI tools that make complex information easier to use.
Deep Simplicity builds practical AI software that helps you review documents, work with PDFs, and simplify dense information. Deep Simplicity Core is our study app for filings and research — and it keeps your work on your device.
On your device · No account required · Human review still required
On-devicePage citationsStudy Actions
Products
What we make
Deep Simplicity LLC builds AI software that runs on your device, in your cloud, or both. We use modern language models (including Gemma and other efficient LLMs) with a privacy-first approach.
Available
NetPDF
Read, search, and organize PDFs without clutter.
Labs
MusicCure
Music tools for focus, calm, and everyday wellness.
Interactive demo
Read Buffett's real letter the way the masters would
A study sample built from Berkshire Hathaway's public 2024 shareholder letter. Switch between the lenses of Warren Buffett, Charlie Munger and Benjamin Graham — each opens with a real, cited quote and applies its framework to the text. Everything runs in your browser.
Berkshire Hathaway — 2024 Letter to Shareholders
We recorded operating earnings of $47.4 billion in 2024. We regularly — endlessly, some readers may groan — emphasize this measure rather than the GAAP-mandated earnings. Our measure excludes capital gains or losses on the stocks and bonds we own… though the year-by-year numbers will swing wildly and unpredictably.
Over the past two decades, our insurance business has generated $32 billion of after-tax profits from underwriting… Meanwhile, our float has grown from $46 billion to $171 billion… and, with intelligent underwriting (and some luck), has a reasonable prospect of being costless.
Berkshire shareholders during the 1965-2024 period received only one cash dividend. On January 3, 1967, we disbursed our sole payment — 10¢ per A share… For sixty years, Berkshire shareholders endorsed continuous reinvestment.
Berkshire will never prefer ownership of cash-equivalent assets over the ownership of good businesses… Paper money can see its value evaporate if fiscal folly prevails.
The cardinal sin is delaying the correction of mistakes — what Charlie Munger called "thumb-sucking." Problems, he would tell me, cannot be wished away. They require action, however uncomfortable that may be.
Study this letter through a master’s lens
Pick a lens above — see how Buffett, Munger or Graham would read this real letter.
Interactive simulation — no AI model is called and no document is uploaded. Figures are approximate and for education only.
Grounded in: Graham — The Intelligent Investor & Security Analysis · Munger — Poor Charlie’s Almanack · Buffett — Berkshire Letters (1965–2024).
Pricing
Start free. Grow when you're ready.
Everything you can try today is free and runs on your device. Paid and team plans are in progress — tell us what you need and we'll shape them with you, no pressure.
Free
Free
On your device · no account- Try every product demo
- On-device processing by default
- No sign-up required
Personal Pro
Coming soon
Be first to know- Advanced study workflows
- Export-ready outputs
- Saved sessions
- Priority product updates
Business
Let's talk
Tailored to your team- Custom AI workflow design
- Document workflow prototypes
- Private deployment & licensing
No prices are final and "coming soon" features are not guaranteed. We'll only ever charge for things that are clearly worth it.
Trust & privacy
Built to be trusted
Deep Simplicity tools are designed to help you simplify and review information. They do not replace professional judgment.
A tool, not a verdict
Our apps help you simplify and review information. They do not replace professional judgment, and a human should review the original before acting.
No professional advice
Deep Simplicity does not provide legal, investment, medical, tax, or regulatory advice. Quotes and study tools are for education only.
Privacy-conscious by design
Deep Simplicity Core processes your work on your device by default. The demo on this page uploads nothing and stores no data.
Transparent product status
We label what is available today versus planned. Where something is a preview or a concept, we say so plainly.
For business
On-device tools for people. Custom builds for teams.
We make focused apps for everyday use — and we take on project work for organizations: on-device AI, private cloud setups, licensing, and implementation. Tell us what you need and we'll follow up with practical next steps.
On-device AI apps with efficient local models
Private cloud and hybrid deployments
Study workflows for filings and documents
Licensing, pilots, and support agreements
“Rule No. 1: Never lose money. Rule No. 2: Never forget rule No. 1.”
Warren Buffett
“Take a simple idea and take it seriously.”
Charlie Munger
Our apps are for education and productivity. We do not provide investment advice, brokerage, or guaranteed returns.