QuestionDB Review
Find low-competition keywords by mining questions from Reddit, Quora, SERP PAA, and People Also Search
QuestionDB is one of the cleaner tools for finding real audience questions from Reddit and Quora alongside traditional PAA data. The free plan lets you test the value before committing, and the Solo tier at $9.99/month is hard to argue with for content researchers. The lack of an API and relatively thin data depth on competitive topics means it works best as a research companion rather than a primary keyword platform.
Pros and cons
- Free tier available with 5 searches per month to test before buying
- Multi-source question data from Reddit, Quora, SERP PAA, and People Also Search
- Search volume, keyword difficulty, and CPC data included on paid plans
- AI Outline Generator and AI Content Analysis built into the platform
- Solo plan at $9.99/month is one of the lowest price points for question-based research
- No API access at any plan tier
- Data depth is limited on highly competitive topics compared to Ahrefs or Semrush
- Free plan is very restricted at 5 searches per month
- Brand Authority Score is a proprietary metric with limited external validation
What is QuestionDB?
QuestionDB is a question-focused keyword research tool that pulls data from Reddit, Quora, Google PAA boxes, and People Also Search results to help content marketers find topics their audiences are actually asking about. Rather than starting from seed keywords and expanding outward, it starts from questions and works backward to content strategy.
Paid plans add search volume, keyword difficulty scores, and CPC data alongside the question database, giving you enough information to prioritize which questions are worth writing about. The AI Outline Generator then takes a chosen topic and produces a structured content brief, which cuts research-to-draft time considerably.
Pricing is accessible: a free tier covers basic exploration, Solo plans run $9.99/month for 100 searches, and the Business plan at $29.99/month handles small agency volumes. There is no API, so all work is done in-browser, and the tool is a deliberate complement to heavier keyword platforms rather than a replacement.
Core features
Multi-source question research
Aggregates questions from Reddit threads, Quora answers, Google People Also Ask boxes, and People Also Search data in one search. This surfaces audience language that keyword volume databases often undercount.
Search volume and keyword difficulty
Paid plans surface volume estimates, difficulty scores, and CPC data for each discovered keyword, so you can move from question discovery to prioritization without switching tools.
AI Outline Generator
Takes a topic or question and produces a structured article outline with suggested headings and supporting points. Works as a starting point for content briefs rather than a finished brief.
AI Content Analysis
Analyzes existing content against SERP competitors and surfaces gaps in topic coverage or structural weaknesses. Useful for refreshing underperforming pages as well as creating new content.
CSV and image export
Exports keyword lists and question data to CSV for further analysis in your preferred spreadsheet or content planning workflow. Image export is available for reports or client presentations.
Pricing
| Feature | Free Free | Solo $9.99/mo | Business $29.99/mo | Enterprise $69.99/mo |
|---|---|---|---|---|
| Searches per month | 5 | 100 | 400 | 1,000 |
| Search volume data | ✗ | ✓ | ✓ | ✓ |
| Keyword difficulty | ✗ | ✓ | ✓ | ✓ |
| CPC data | ✗ | ✓ | ✓ | ✓ |
| CSV and image export | ✗ | ✓ | ✓ | ✓ |
| AI Outline Generator | ✗ | ✓ | ✓ | ✓ |
| API access | ✗ | ✗ | ✗ | ✗ |
Who it is for
The question-first research workflow is a natural fit for content teams who plan articles around audience intent rather than pure search volume, and the AI outline feature reduces brief prep time.
Mining Reddit and Quora for real user questions surfaces sub-topic coverage gaps that standard keyword tools miss, which is valuable when building out a topical cluster.
The Solo plan at $9.99/month is extremely affordable for the insight it delivers, and the free tier lets you verify the data quality for your niche before committing.
Verdict
QuestionDB fills a specific gap that volume-focused keyword tools leave open: what are real people actually asking about in communities and forums? The free tier and $9.99 Solo plan make it low-risk to test, and the AI outline feature adds enough workflow value to justify the cost for regular content producers. Skip it if you need deep competitive data or API access.
Frequently asked questions
Is QuestionDB free?
There is a free tier with 5 searches per month, enough to test the tool and evaluate data quality for your niche. Paid plans start at $9.99/month for the Solo tier with 100 searches.
What data sources does QuestionDB use?
QuestionDB pulls questions from Google People Also Ask boxes, People Also Search results, Reddit, and Quora. This combination surfaces both SERP-visible questions and community-generated long-tail queries.
Does QuestionDB have an API?
No, QuestionDB does not offer API access at any current plan level. All research is conducted through the web interface.
How is QuestionDB different from AnswerThePublic?
Both tools focus on question-based keyword discovery, but QuestionDB explicitly includes Reddit and Quora data, adds keyword difficulty and CPC metrics on paid plans, and includes an AI Outline Generator. AnswerThePublic focuses more on autocomplete and question modifiers from search engines.
Can I export keyword data from QuestionDB?
Yes, CSV and image exports are available on all paid plans. The CSV export includes question text, volume, difficulty, and CPC data where available.