BlockSurvey Review
BlockSurvey is a privacy-focused online survey and form builder with AI-assisted survey creation, logic, and encrypted response collection.
TL;DR
BlockSurvey stands out for privacy-first surveys (end-to-end encryption, anonymity options) plus AI-assisted creation and follow-ups. If you mainly want advanced reporting and research workflows at a lower cost, you may want to compare alternatives.
Overview
BlockSurvey is an online survey platform for creating, distributing, and analyzing surveys, with a strong emphasis on privacy and data ownership. It supports classic, conversational, and one-question-at-a-time survey formats, plus branching logic and a broad set of question types (including NPS/CSAT/CES and market research methods like MaxDiff and Conjoint on higher tiers). Distribution options include share links, embeds/widgets, QR codes, webhooks, and built-in email and text campaigns (paid add-ons). A key differentiator is end-to-end encrypted responses (and encrypted file uploads/audience lists), alongside options like anonymous surveys, Tor/onion routing support, and token-gated access for Web3 use cases.
Ease of Use 4/5
BlockSurvey feels straightforward to build in, especially if you lean on its AI survey creation to generate a first draft quickly. Logic is a real selling point here: skip/display logic, piping, and a logic map are all positioned as first-class features rather than hidden in advanced menus. Team plan adds real-time collaboration, which matters if multiple people need to review wording and branching before launch.
Features 4/5
For most everyday surveys you get the basics plus plenty of depth: 20+ question types, randomization, partial responses, duplicate/bot prevention, and multiple distribution methods (link, embed/widget, QR code, webhooks, and social sharing). Reporting goes beyond simple charts with built-in analytics (including things like pivot-style views and text insights) and exports to formats like CSV/XLSX and SPSS. On higher tiers it also moves into research-oriented territory with NPS/CSAT/CES and market research question types (for example MaxDiff and Conjoint), plus crosstabs and quota/screen-out controls.
Key Features
Lacking Features
Looks & Design 4.5/5
The respondent experience is one of the better parts of BlockSurvey, with classic, conversational, and one-question-at-a-time formats available. Branding controls (themes, fonts/colors, custom CSS) are there, but the cleanest presentation typically requires Premium or above to remove BlockSurvey branding and use custom domains. If you care about completion rates, the conversational format and mobile-friendly design are likely to be the biggest practical wins.
Customer Satisfaction 4/5
If privacy is your priority, BlockSurvey is unusually clear about its security stance: end-to-end encrypted responses and an explicit “we can’t access it” positioning, plus options for anonymous surveys and even Tor/onion routing. The published compliance claims (GDPR, plus HIPAA support on Team with a BAA) make it a reasonable shortlist option for sensitive data collection, assuming your legal team is comfortable with the exact terms. Support is plan-based with stated response times (from 48 hours down to 12 hours), and Enterprise adds onboarding/training.
BlockSurvey Pricing 3/5
Pricing is easy to understand at the headline level ($39 Standard, $79 Premium, $119 Team), but the free plan is very constrained at 10 responses, so it’s more of a trial than a usable ongoing tier. The big catch is that response limits are annual quotas (6,000/24,000/60,000 responses per year), which can be awkward if your usage is seasonal or campaign-based. Key items many teams expect (branding removal, custom domain, AI analysis, and some integrations like Google Sheets/Power BI/Zendesk) sit on higher tiers, so value depends heavily on whether you’re paying for privacy features you actually need.
Free
- 1 user
- 10 responses
- 3 active surveys
- 10 questions per survey
- AI Survey Creation (3)
- AI Data Analysis (10)
Standard
- 1 user
- 6,000 responses per year
- Unlimited surveys
- AI-powered survey creation
- Skip and display logic
- Multi-language survey (100+ languages)
- Slack, 2+ integrations
- Email support within 48h
Premium
- 1 user
- 24,000 responses per year
- AI follow-up questionnaire
- Custom domain (1)
- Remove BlockSurvey branding
- Audience management
- Question and answer piping
- Google Sheets, 3+ integrations
- Email support within 24h
Team
- 3 users
- 60,000 responses per year
- AI data analysis
- AI Data Encoding
- NPS, CSAT, and CES
- Market Research Questions
- 3 custom domains
- GDPR Compliance (DPA Issued)
- HIPAA Compliance (BAA Issued)
- MS Power BI, Zendesk, 4+ integrations
- Email support within 12h
Enterprise
- Unlimited seats
- High-volume
- Single Sign-On (SAML)
- Free migration
- Personalized training & onboarding
- Priority support
Pros & Cons of BlockSurvey
Pros
- • End-to-end encrypted responses (and encrypted file uploads/audience lists)
- • Anonymous surveys plus Tor/onion routing option
- • AI-assisted survey creation plus AI follow-up questions (paid tiers)
- • Multiple survey experiences: classic, conversational, one-question-at-a-time
- • Strong logic toolkit listed (skip/display logic, piping, logic map)
- • Broad question-type list including NPS/CSAT/CES and market research methods (higher tiers)
- • Many distribution options (link, embed/widget, QR, webhooks; email/text campaigns available)
Cons
- • Free plan capped at 10 responses, limiting real-world use
- • Most higher-end needs push you to Premium/Team (custom domain, branding removal, AI analysis)
- • Response limits are annual quotas on paid plans, which may not fit spiky collection periods
- • Integrations appear tier-gated by plan (e.g., Google Sheets/Power BI/Zendesk on higher tiers)
The Verdict
BlockSurvey is a good fit if respondent privacy and data ownership are non-negotiable, especially for sensitive feedback (health, internal org surveys) and privacy-conscious communities. It also covers a wide range of survey types, from standard feedback forms to more specialized market research methods on higher plans. The free tier is extremely limited for real survey work, so most teams will quickly land on a paid plan. If your priority is deep analytics and reporting dashboards out of the box, or you need a generous free plan for ongoing use, it is worth cross-shopping before committing.
This review has been researched and written following our strictly standardized OnlineSurveyTools methodology. We believe in transparency and consistency.
- We create real accounts and build actual forms.
- We test specific features like logic, payments, and integrations.
- We evaluate the respondent experience on mobile and desktop.
- We verify pricing claims and support responsiveness.