More advanced layout customization and database integrations, but lacks client-side end-to-end data encryption features.
BlockSurvey records 302,480 monthly visits with -14.9% month-over-month growth and Freemium, Paid pricing. Roboflow records 1,431,204 monthly visits with +6.6% growth and Freemium, Contact for Pricing pricing.
Privacy-first AI surveys with end-to-end encrypted responses
| Dimension / Metric | ||
|---|---|---|
| Official Domain | blocksurvey.io | roboflow.com |
| Pricing Model | Freemium, Paid | Freemium, Contact for Pricing |
| Monthly Visits | 302.48K (302,480) | 1.43M (1,431,204) |
| MoM Traffic Delta | -52.92K (-14.9%) |
| +88.17K (+6.6%) |
| Primary Market & Share | 🇺🇸 United States (25.1%) | 🇺🇸 United States (21.2%) |
|---|
| Direct Visits / mo | 259.19K | 676.47K |
|---|
| User Rating | 4.2 | 4.6 |
|---|
| Supported Platforms | Website | Website |
|---|
Privacy-first AI surveys with end-to-end encrypted responses
Responses are encrypted on the respondent's device before upload, so only the survey owner holds the key and can decrypt the data.
Generate structured, less biased questionnaires from a prompt, refine wording, create answer options and add skip logic and multilingual support.
Automated thematic analysis, sentiment detection, anomaly flagging and data encoding turn open-ended answers into usable categorical insight.
Run natural back-and-forth interviews with dynamic follow-up questions that adapt to each respondent for deeper qualitative data.
Build, train, and deploy computer vision for the physical world
Label thousands of images in minutes using frontier models and custom filters, then curate datasets for training.
Combine detection, tracking, and logic blocks to orchestrate actions, update databases, and connect to industrial systems.
Run high-speed inference in the cloud or on edge devices, processing live video and images wherever the application lives.
Get into production quickly with an agent that sees the world, understands what is happening, and triggers actions.
More advanced layout customization and database integrations, but lacks client-side end-to-end data encryption features.
Broader template library and poll features, but lacks specialized privacy-first cryptographic encryption for sensitive survey responses.

SpecialistRun, fine-tune, and deploy machine learning models with one line of code

Free / Open-sourceFocuses specifically on the YOLO model family for real-time object detection, whereas Roboflow offers a broader suite of annotation and dataset tools.


Provides powerful enterprise data labeling and curation workflows, but lacks Roboflow's built-in model training and edge deployment pipelines.

Combines annotation and data curation for enterprise ML pipelines, but requires more manual setup for edge model deployment.
Strong multimodal data infrastructure for physical AI datasets, though less focused on simple end-user model deployment than Roboflow.

Faster AI form and logic generation from text prompts, but without client-side end-to-end encryption.

Free / Open-sourceA flexible open-source labeling tool you can self-host, but lacks Roboflow's managed cloud infrastructure for training and deployment.


Better interactive quizzes and lead capture polls, but less focused on secure research surveys and data privacy.

SpecialistEdge AI accelerators and vision processors for embedded intelligence

Supports unique MCP server integrations for AI form generation, but lacks BlockSurvey's strict cryptographic privacy focus.
SpecialistRun, fine-tune, and deploy machine learning models with one line of code
Free / Open-sourceFocuses specifically on the YOLO model family for real-time object detection, whereas Roboflow offers a broader suite of annotation and dataset tools.
Provides powerful enterprise data labeling and curation workflows, but lacks Roboflow's built-in model training and edge deployment pipelines.
Combines annotation and data curation for enterprise ML pipelines, but requires more manual setup for edge model deployment.
Strong multimodal data infrastructure for physical AI datasets, though less focused on simple end-user model deployment than Roboflow.
Free / Open-sourceA flexible open-source labeling tool you can self-host, but lacks Roboflow's managed cloud infrastructure for training and deployment.
Better interactive quizzes and lead capture polls, but less focused on secure research surveys and data privacy.