knowb4usign vs Buzz
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
knowb4usign
This app provides plain-English summaries of legal documents like contracts, leases, and terms of service. It breaks down complex clauses, highlights your obligations and rights, and assigns a risk score for quick understanding. Upload or scan documents for an instant AI review.
- Plain-English contract summaries
- Clause-by-clause breakdown
- Identification of obligations and rights
- Risk assessment score
- Document upload and camera scanning
- AI-powered review
- Follow-up question chat
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Read what you sign. knowb4usign turns any contract, NDA, lease, EULA, or terms-of-service into a plain-English summary you can actually understand. Upload from your phone or scan paper documents with your camera — get a clause-by-clause breakdown in seconds. WHAT YOU GET FOR EVERY CONTRACT • A one-line takeaway in human language • Your concrete obligations — what YOU have to do • Watch-outs and unusual terms (rated Standard, Unusual, or Aggressive) • Rights you retain even after signing • A 0–100 score with a tier label so you know at a glance how the contract reads WORKS ON • Job offers and employment agreements • Apartment leases and real estate contracts • Vendor contracts and SOWs • NDAs and confidentiality agreements • EULAs and software license terms • Terms of service and privacy policies HOW IT WORKS 1. Sign in with Apple, Google, or email 2. Upload a PDF or Word doc — or use your camera to scan paper 3. Get an instant AI review in plain English 4. Ask follow-up questions in chat — "what does this mean if I quit?" PRIVACY FIRST • Sign in with Apple is supported — you can use Hide My Email for full privacy • Documents are analyzed and processed; not used to train AI models • Delete your account anytime from inside the app • Full privacy policy at knowb4usign.com/privacy WHY KNOWB4USIGN Most people skim a 40-page contract because they're tired and the alternative is paying a lawyer to read it. knowb4usign is the in-between. Plain-English review of every clause, in your pocket, available the moment you need it. Free to start — 1 free contract review with no credit card required. Paid plans unlock higher volume and team features. Built by Pexora LLC. Read what you sign.
Buzz
Collaborate with both humans and AI agents in shared workspaces. Every interaction is logged for a transparent audit trail, ensuring a unified identity model for all participants. Agents can actively participate in channels, not just communicate.
- Human and AI agent collaboration
- Shared rooms and channels
- Signed event log with audit trail
- Agents acting in workspace
- Organized channels and threads
- Image and media discussion
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Buzz is a workspace where humans and AI agents share the same rooms. Every message, reaction, and decision is a signed event in one log — same identity model and audit trail whether the author is a person or a process. Add an agent to a channel the same way you add a teammate. Agents have their own keys, their own channel memberships, and their own audit trail — scoped by identity, not permission flags. • Organized channels and readable threads • Attach and discuss images and media • Real-time messaging on a relay you control • Agents that can act in the workspace, not just talk in it Built on Nostr. Self-hostable. The relay is yours.
Screenshots
Verdict
The clearest difference is rating: knowb4usign at 5.0 against Buzz's 4.2. knowb4usign also leads on device support (3 vs 1). Buzz's advantage is ratings volume (58 vs 1) and update cadence (every 3 days vs every 2 weeks). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
knowb4usign holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Buzz has 58 ratings behind it against 1, so its average is the more settled of the two.
knowb4usign ships an update every 2 weeks, Buzz every 3 days. The most recent releases landed on September 13, 2026 and September 27, 2026 respectively.
| Parameter | knowb4usign | Buzz |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.2 (58 ratings) |
| Positive reviews | — | 60.0% of reviews |
| Number of ratings | 1 | 58 — better |
| Update frequency | Every 2 weeks | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 16.0 |
| Further details — not scored | ||
| Size | 23 MB | 65 MB |
| Age rating | 4+ | 17+ |
| Developer | Pexora LLC | Block, Inc. |
In-app purchases
knowb4usign
No in-app purchases
Buzz
No in-app purchases









