Visual Graph Editor
Design complex surveys the way researchers actually think—in flows, not lists. Our graph-based editor transforms intricate branching logic into an intuitive visual canvas.
See the entire structure
Visualize every path, condition, and endpoint at once
Design with confidence
Drag, connect, and branch without losing context
Non-linear by default
Build sophisticated logic that adapts to responses
"Most survey tools force linear thinking. Lensym lets you design in 2D."
Smart Piping & Expressions
Go beyond basic piping. Insert variables, calculate scores, and build formulas that adapt surveys to each respondent—all with type-safe variables and a visual editor.
Type-safe variables
Text, numbers, dates, arrays - the system knows and preserves types
Formula-powered logic
Build calculations with +, -, ×, ÷ and functions like SUM, AVG, ROUND
Dynamic personalization
Pipe any answer into questions, logic, or even other formulas
Unlike other survey tools that treat every response as plain text, Lensym keeps answers typed. Numbers stay numbers, dates stay dates. This means you can calculate scores, compare values, and reference numeric answers directly in logic and formulas.
Unlike other survey tools that treat every response as plain text, Lensym keeps answers typed. Numbers stay numbers, dates stay dates. This means you can calculate scores, compare values, and reference numeric answers directly in logic and formulas.
Advanced Branching & Logic
Build intelligent surveys that adapt in real-time. Skip irrelevant questions, create complex paths, and deliver personalized experiences with enterprise-grade conditional logic.
6 Logical Operators
AND, OR, XOR, NAND, NOR, IMPLIES
14 Comparison Types
Equals, contains, greater than, starts with...
Nested Conditions
Unlimited nesting and grouping
GO_TO Actions
Jump to any question non-linearly
SKIP Actions
Skip irrelevant questions automatically
Real-time Evaluation
Instant logic execution, no reloads
Lensync Real-Time Collaboration
Built on conflict-free replication technology, Lensync enables seamless co-editing without the chaos. See changes instantly, work together naturally.
Instant synchronization
Changes propagate in milliseconds via WebSocket connections
Conflict resolution
YJS-powered CRDT ensures every edit merges cleanly
Presence indicators
See who's online, what they're editing, and where they're focused
Analytics & Insights
Real-time dashboards, visual reports, and flexible exports. Understand your data at a glance, dive deep when needed.
Real-time updates
Watch responses flow in with live metrics and charts
Advanced filtering
Segment, filter, and analyze subsets of your data
Multiple export formats
CSV, Excel, JSON—export exactly what you need
Security & Compliance
Built for researchers who handle sensitive data. GDPR-compliant infrastructure, EU data residency, and enterprise-grade encryption.
GDPR First
Built-in compliance tools, consent management, and data controls
End-to-end Encryption
Data encrypted in transit and at rest with industry standards
EU Data Residency
Your data stays in EU datacenters, full compliance guaranteed
Audit Logs
Complete activity trails for accountability and transparency