# BlockSurvey vs David

BlockSurvey records 302,480 monthly visits with -14.9% month-over-month growth and Freemium, Paid pricing. David records 0 monthly visits with — growth and Freemium pricing.

| Metric | [BlockSurvey](https://openaitools.app/tool/block-survey) | [David](https://openaitools.app/tool/david) |
| :--- | :--- | :--- |
| Website URL | https://blocksurvey.io | https://chromewebstore.google.com/detail/david/bndgfamlgnkegpcifaondpepplpecdni |
| Categories | AI Forms, AI Question Generator, AI For Data Analytics, No-Code&Low-Code | AI Forms, AI Assistant, AI Productivity Tools, AI Browsers |
| Pricing Model | Freemium, Paid | Freemium |
| Monthly Visits | 302,480 | 0 |
| MoM Growth Rate | -14.9% | — |
| Primary Market | United States | Global |
| Direct Visits | 259,186 | 0 |
| Review Score | 4.2 | 3.8 |
| Saved Count | 0 | 0 |
| Supported Platforms | Website | Browser Extension |

## BlockSurvey

BlockSurvey starts from a simple premise: the people who answer your survey deserve privacy, and the organisation that runs it deserves sole ownership of the data. Answers are encrypted on the respondent's device before they ever reach BlockSurvey's servers, so no one — including the platform — holds the key. On top of that sit no trackers, no cookies, no ads, and the ability to collect fully anonymous responses.

The AI layer covers the whole research cycle. You can generate a well-structured, less biased questionnaire from a prompt, rephrase unclear questions, create answer options, run adaptive follow-up questions inside open-ended items, then move to automated thematic and sentiment analysis, anomaly detection and data encoding. Longitudinal analysis compares waves of a repeated survey so you can see which changes are statistically meaningful and where a trend is heading.

Distribution and integration are handled flexibly: email and SMS campaigns, link, QR and embed sharing, audience management, automation, white-label branding and multilingual surveys. BlockSurvey also exposes an MCP connector, so you can create, edit and publish surveys directly from Claude, Claude Code or ChatGPT. Compliance-oriented features target HIPAA, GDPR and similar regimes, with dedicated solutions for market research, healthcare, institutional research, activism and non-profit work.

**Pricing & Plans:** Freemium with paid plans. A free tier supports basic survey building; paid subscriptions unlock advanced AI analysis, higher response volumes, white-label branding, compliance features and team collaboration. Non-profit discounts are available.

- **Zero-Knowledge Encryption:** Responses are encrypted on the respondent's device before upload, so only the survey owner holds the key and can decrypt the data.
- **AI Survey Creation:** Generate structured, less biased questionnaires from a prompt, refine wording, create answer options and add skip logic and multilingual support.
- **AI Analysis Suite:** Automated thematic analysis, sentiment detection, anomaly flagging and data encoding turn open-ended answers into usable categorical insight.
- **Conversational & Adaptive Surveys:** Run natural back-and-forth interviews with dynamic follow-up questions that adapt to each respondent for deeper qualitative data.
- **MCP Connector:** Connect BlockSurvey to Claude, Claude Code and ChatGPT to create, edit and publish surveys without leaving your AI assistant.

**Strengths:** Client-side encryption means the platform itself cannot read responses; No trackers, cookies or ads by design; AI covers creation, conversational interviewing and analysis in one place; MCP connector lets you manage surveys from ChatGPT or Claude

**Limitations:** Advanced AI features and higher volumes sit behind paid tiers; Zero-knowledge encryption can complicate deep cross-referencing of raw data; Some compliance-specific features are packaged for particular industries

[Profile (Markdown)](https://openaitools.app/tool/block-survey.md)

## David

David is distributed as a Chrome extension and targets a narrow, practical annoyance: filling in the same kinds of web forms again and again. Instead of typing your name, address, preferences and survey answers field by field, the extension detects the inputs on the page and completes them for you.

The publisher describes it as learning and adapting over time, so the more often you use it, the closer its fills get to what you would have typed yourself. Customisable settings give you control over how aggressive the automation is, which matters when a mistake on a checkout page is more costly than a mistake on a survey.

It is a small, single-purpose tool with a very modest install base and English-only interface. If your browser use involves a lot of registration and data-entry screens, it is worth a look; if you rarely touch web forms, there is little here for you.

**Pricing & Plans:** Listed in the Chrome Web Store as freemium. The extension is a free install; no separate subscription price or official pricing page is published.

- **Automatic field completion:** Detects form fields on the page and populates them automatically rather than making you tab through and type each one.
- **Preference learning:** The extension adapts to your preferences and typical answers, so repeated fills need less correction.
- **Customisable behaviour:** Settings let you decide how much the extension does on its own versus how much you review before submitting.
- **Works across registrations and surveys:** Covers registrations, surveys, checkouts and other multi-field web forms rather than one specific site.
- **Lightweight footprint:** The extension is tiny, so it adds negligible browser overhead.

**Strengths:** Very small download (about 61 KB) with minimal browser overhead; Handles the repetitive part of registrations, surveys and checkout forms; Adapts to your preferences so fills improve over time; Settings let you keep control over what it fills automatically

**Limitations:** Only around 20 installs and zero ratings, so maturity is unproven; English-only interface; Stores and reads page content to function, which some users will weigh carefully; No published pricing page or dedicated website, only the store listing

[Profile (Markdown)](https://openaitools.app/tool/david.md)

## Frequently Asked Questions

### How do BlockSurvey and David compare in monthly traffic?

BlockSurvey has 302,480 monthly visits, while David has 0. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

BlockSurvey has a month-over-month growth rate of -14.9%; David has —.

### How does pricing compare?

BlockSurvey: Freemium, Paid. Freemium with paid plans. A free tier supports basic survey building; paid subscriptions unlock advanced AI analysis, higher response volumes, white-label branding, compliance features and team collaboration. Non-profit discounts are available. David: Freemium. Listed in the Chrome Web Store as freemium. The extension is a free install; no separate subscription price or official pricing page is published.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Fillout](https://openaitools.app/tool/fillout-com) | 3,923,917 | -9.7% | Freemium | Build powerful forms, surveys and quizzes with AI in minutes | [.md](https://openaitools.app/tool/fillout-com.md) |
| 2 | [Sider](https://openaitools.app/tool/sider) | 2,644,740 | -10.6% | Freemium | AI sidebar and browser agent for reading, writing and research | [.md](https://openaitools.app/tool/sider.md) |
| 3 | [forms.app](https://openaitools.app/tool/forms-app) | 987,157 | -11.2% | Freemium, Paid | Broader template library and poll features, but lacks specialized privacy-first cryptographic encryption for sensitive survey responses. | [.md](https://openaitools.app/tool/forms-app.md) |
| 4 | [Makeform](https://openaitools.app/tool/makeform) | 160,692 | -10.8% | Freemium | Faster AI form and logic generation from text prompts, but without client-side end-to-end encryption. | [.md](https://openaitools.app/tool/makeform.md) |
| 5 | [Opinion Stage AI](https://openaitools.app/tool/opinion-stage-ai) | 120,996 | +2.5% | Contact for Pricing | Better interactive quizzes and lead capture polls, but less focused on secure research surveys and data privacy. | [.md](https://openaitools.app/tool/opinion-stage-ai.md) |
| 6 | [FormHug](https://openaitools.app/tool/formhug) | 92,118 | -4.8% | Freemium, Free | Supports unique MCP server integrations for AI form generation, but lacks BlockSurvey's strict cryptographic privacy focus. | [.md](https://openaitools.app/tool/formhug.md) |
| 7 | [OpnForm](https://openaitools.app/tool/opnform) | 76,221 | +169% | Freemium, Free Trial | Open-source codebase with unlimited submissions and AI assistance, but less emphasis on end-to-end encrypted data storage. | [.md](https://openaitools.app/tool/opnform.md) |
| 8 | [Perspective AI](https://openaitools.app/tool/perspective-ai) | 62,936 | +28.7% | Freemium | Turn static forms into adaptive AI conversations with structured output | [.md](https://openaitools.app/tool/perspective-ai.md) |
| 9 | [Voiceform](https://openaitools.app/tool/voiceform) | 54,210 | +5.6% | Contact for Pricing | AI-moderated voice and video interviews that scale survey research to thousands of people at once | [.md](https://openaitools.app/tool/voiceform.md) |
| 10 | [Retriever AI](https://openaitools.app/tool/retriever-ai) | 45,292 | +32% | Freemium | Free AI browser agent that works anywhere you're signed in | [.md](https://openaitools.app/tool/retriever-ai.md) |

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Source: https://openaitools.app/compare/block-survey-vs-david

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