# Overlayer (Devoteam Knowledge Services) vs Question Base

Overlayer (Devoteam Knowledge Services) records 0 monthly visits with — month-over-month growth and Free (enterprise licensing via vendor) pricing. Question Base records 2,994 monthly visits with -16.8% growth and Freemium, Free Trial, Contact for Pricing pricing.

| Metric | [Overlayer (Devoteam Knowledge Services)](https://openaitools.app/tool/overlayer) | [Question Base](https://openaitools.app/tool/question-base) |
| :--- | :--- | :--- |
| Website URL | https://chromewebstore.google.com/detail/overlayer/gogoldpiecllojciifelebipkpfdhcil | https://www.questionbase.com |
| Categories | AI Knowledge Management, AI Search Engine, AI Copilot, AI Text Classifier | AI Agent, AI Answer, AI Knowledge Base, AI Chatbot |
| Pricing Model | Free (enterprise licensing via vendor) | Freemium, Free Trial, Contact for Pricing |
| Monthly Visits | 0 | 2,994 |
| MoM Growth Rate | — | -16.8% |
| Primary Market | Global | United States |
| Direct Visits | 0 | 1,176 |
| Review Score | 4.2 | 4.3 |
| Saved Count | 1 | 1 |
| Supported Platforms | Browser Extension | Website |

## Overlayer (Devoteam Knowledge Services)

Overlayer began as a lightweight Google Workspace companion for leveraging internal company knowledge with AI, and the same extension is now distributed by the consultancy Devoteam under the name Devoteam Knowledge Services. Because the Chrome Web Store entry, extension ID and publisher record are unchanged, anyone who installed Overlayer keeps getting updates under the new branding. The extension is aimed at teams that already live inside Google Workspace and want to avoid bolting on yet another search or wiki tool.

The product folds several knowledge-work tasks into a single side panel: AI-powered search across the company's drives and connected sources, automatic tagging of documents as they are created, identification of in-house subject-matter experts, and an approval workflow so that sensitive or reviewed material follows the right process. It is installed with no setup, requires little configuration, and is designed specifically for Google Workspace rather than generic web pages.

The extension reports 8,000 users and a perfect 5.0 rating from a small handful of reviews, with version 4.7.4 as the most recent update. It is published by Devoteam, a European technology consultancy headquartered in Levallois-Perret, France, which gives it the backing of an established services organization rather than an anonymous solo developer.

**Pricing & Plans:** The Chrome extension is free to install and use within your Google Workspace tenant; enterprise rollout, governance and support terms are handled through Devoteam. The Chrome Web Store listing does not publish a per-seat price, so check with Devoteam for organizational licensing.

- **AI search over internal knowledge:** Ask natural-language questions and get answers pulled from your company's drives and connected knowledge sources, without leaving Google Workspace.
- **Automatic tagging:** Documents are tagged as they are created so content stays findable and consistently categorized across the organization.
- **Approval workflows:** Route sensitive or reviewed documents through a built-in approval process to keep published knowledge trustworthy.
- **Expert identification:** Surfaces the in-house colleagues who know a topic best, turning search results into a route to the right person.
- **Zero-setup Google Workspace design:** Installs in seconds and is built exclusively for Docs, Drive, Gmail and the wider Google suite.

**Strengths:** Runs entirely inside Google Workspace, so there is no new tool for employees to learn; Combines AI search, tagging, expert finding and approvals in one extension; Backed by Devoteam, an established European consultancy with a verified developer profile; Very small footprint and effectively no setup time

**Limitations:** Pricing and enterprise terms are not published on the store listing; Only relevant if your organization is standardized on Google Workspace; Review volume is tiny, so independent quality signals are limited

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

## Question Base

Question Base targets a very specific and expensive workplace problem: your documentation exists, but people would rather ask a colleague in Slack than search a wiki. The company cites that around 80% of employees prefer asking in chat over searching, and that internal experts spend roughly six hours a week re-answering questions that have already been answered somewhere. Question Base puts an AI agent directly in Slack to close that gap — it responds from your curated sources in a few seconds instead of pulling an expert out of their work.

The product is not just a retrieval bot. Knowledge experts can refine responses, set tone-of-voice and answer instructions, and rate answers, so the agent's precision improves over time. Unanswered or weakly answered questions are surfaced so owners can add or correct an answer once and let the agent handle the repeats. Reporting on resolution and automation rates gives leaders a concrete number to justify expansion.

Commercially, Question Base is aimed at mid-size and enterprise teams and is sold as a structured engagement rather than pure self-serve: a two-month proof of concept pilot, an annual pro tier covering one team or department, and an enterprise tier with custom integrations, deployment inside your own AWS, white-labeling, private LLM connections and multi-workspace support. The vendor emphasizes hands-on implementation support and SOC 2 Type II security, reflecting that knowledge accuracy and data governance matter more than raw model choice in this category.

**Pricing & Plans:** Pilot: $1,000 for a 2-month proof of concept with hands-on implementation. Annual Pro: starts at $6,000/year, or $5 per user per month billed annually. Enterprise+: starts at $20,000/year, or $15 per user per month billed annually, adding custom integrations, AWS-hosted deployment, white-labeling and multi-workspace support. A free trial and contact-for-pricing options are also offered.

- **Slack-native answer agent:** Deploys into the channels where your team already works and answers internal questions in seconds, with typical response times of a few seconds.
- **Answers grounded in your own sources:** Connects Google Drive, Confluence, Notion, Salesforce, Slack and 10+ other platforms so responses come from your curated documentation rather than open web results.
- **Expert-in-the-loop refinement:** Knowledge owners can set tone of voice, add answering instructions, rate accuracy reserved answers, and save new answers so the agent improves continuously.
- **Automation and value analytics:** Tracks resolution rate, automation rate and time saved per agent and per team, giving leaders the numbers needed for stakeholder reporting.
- **Enterprise controls and deployment options:** SOC 2 Type II certified, with enterprise options for custom integrations, deployment inside your own AWS, white-labeling and HIPAA-related compliance support.

**Strengths:** Purpose-built for Slack rather than a generic chatbot bolted onto chat; Answers come from your own curated documentation sources, which improves trust; Feedback loop lets experts correct and improve answers over time; Reporting on automation rate and saved time supports internal ROI conversations

**Limitations:** Entry pricing is aimed at teams, and the $6,000/year start is steep for very small teams; Full value depends on having reasonably well-maintained source documentation; Some advanced enterprise capabilities are limited to the higher tier

[Profile (Markdown)](https://openaitools.app/tool/question-base.md)

## Frequently Asked Questions

### How do Overlayer (Devoteam Knowledge Services) and Question Base compare in monthly traffic?

Overlayer (Devoteam Knowledge Services) has 0 monthly visits, while Question Base has 2,994. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Overlayer (Devoteam Knowledge Services) has a month-over-month growth rate of —; Question Base has -16.8%.

### How does pricing compare?

Overlayer (Devoteam Knowledge Services): Free (enterprise licensing via vendor). The Chrome extension is free to install and use within your Google Workspace tenant; enterprise rollout, governance and support terms are handled through Devoteam. The Chrome Web Store listing does not publish a per-seat price, so check with Devoteam for organizational licensing. Question Base: Freemium, Free Trial, Contact for Pricing. Pilot: $1,000 for a 2-month proof of concept with hands-on implementation. Annual Pro: starts at $6,000/year, or $5 per user per month billed annually. Enterprise+: starts at $20,000/year, or $15 per user per month billed annually, adding custom integrations, AWS-hosted deployment, white-labeling and multi-workspace support. A free trial and contact-for-pricing options are also offered.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Notion](https://openaitools.app/tool/t) | 173,441,670 | +0.1% | Freemium | The AI workspace where teams and agents get work done together | [.md](https://openaitools.app/tool/t.md) |
| 2 | [Perplexity](https://openaitools.app/tool/perplexity-ai) | 88,310,223 | -3.7% | Freemium | Real-time AI answer engine and research workspace combining live web citations with frontier reasoning models. | [.md](https://openaitools.app/tool/perplexity-ai.md) |
| 3 | [Glean](https://openaitools.app/tool/glean) | 3,301,875 | +0.1% | Contact for Pricing | Enterprise AI grounded in your company's own knowledge | [.md](https://openaitools.app/tool/glean.md) |
| 4 | [Helpjuice](https://openaitools.app/tool/helpjuice) | 585,623 | +17.3% | Free Trial, Contact for Pricing | AI-powered knowledge base that turns documents into fast answers | [.md](https://openaitools.app/tool/helpjuice.md) |
| 5 | [DocsBot AI](https://openaitools.app/tool/docsbot-ai) | 495,278 | -3.8% | Freemium | Custom AI agents trained on your documentation and knowledge base | [.md](https://openaitools.app/tool/docsbot-ai.md) |
| 6 | [GPT Workspace](https://openaitools.app/tool/gpt-workspace-1) | 431,507 | +43.8% | Freemium, Free Trial, Paid | Bring ChatGPT, Claude and Gemini into Google Docs, Sheets, Slides and Gmail | [.md](https://openaitools.app/tool/gpt-workspace-1.md) |
| 7 | [mymind](https://openaitools.app/tool/mymind) | 221,816 | -1% | Free Trial, Paid | A private, visual AI space to save and remember anything — no folders, no tagging | [.md](https://openaitools.app/tool/mymind.md) |
| 8 | [Fabric](https://openaitools.app/tool/fabric) | 168,987 | +2.7% | Freemium | Your files, notes and meetings in one drive — with an AI that knows all of it. | [.md](https://openaitools.app/tool/fabric.md) |
| 9 | [TextCortex AI](https://openaitools.app/tool/textcortex-ai) | 150,520 | +12.7% | Freemium, Free Trial | No-code AI agents grounded in your company's knowledge | [.md](https://openaitools.app/tool/textcortex-ai.md) |
| 10 | [GoSearch](https://openaitools.app/tool/gosearch) | 55,390 | +1.4% | Freemium | Agentic AI enterprise search with custom agents and no-code workflows | [.md](https://openaitools.app/tool/gosearch.md) |

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Source: https://openaitools.app/compare/overlayer-vs-question-base

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