Question and comparison keywords from five engines, without a subscription
AnswerThePublic is known for its question wheels: how, what, why, can, and phrases with for, with, vs and near. Keyfern runs the same kinds of expansions (12 question words and 10 prepositions and comparisons, plus A to Z) against up to five autocomplete engines and hands back one deduped list with intent tags, so question and comparison phrases are one filter away.
Real run on Apify, 23 Sep 2026: seed "standing desk", Google + YouTube + Bing + Amazon, US
| Keyword idea | Intent | Cluster | Engines | Score | Google Trends |
|---|---|---|---|---|---|
| standing desk with drawers | informational | drawers | 4 | 100 | rising +111% |
| standing desk chair | informational | chair | 4 | 100 | rising +74% |
| standing desk ikea | transactional | ikea | 4 | 100 | stable +13.5% |
| standing desk converter | informational | converter | 3 | 90 | – |
| standing desk and walking pad | informational | walking | 4 | 90 | – |
Source: products/keyword-ideas/store/listing.json (real run of Keyfern on Apify, 23 Sep 2026); question and preposition word lists from products/keyword-ideas/src/expand.js.
Keyfern vs the alternatives
Published prices, each checked on the date shown; prices change, so confirm on each site.
| Product | Price | Free | Checked |
|---|---|---|---|
| Keyfern (Apify tool) | $0.001 per keyword idea | Apify's monthly free credit covers a first seed | live |
| AnswerThePublic | Starter US$20/month; Growth US$99/month; Business US$199/month | no free option listed on the pricing page | 2026-10-10 |
| Apify: memo23 google-suggest-scraper | from $0.50 per 1,000 keyword suggestions (Google only) | Apify free credit | 2026-10-10 |
Why teams pick Keyfern
- The same question and preposition expansions (how, what, why, can, for, with, vs, near and more) across five engines.
- Every phrase tagged with intent, so filtering to questions or comparisons is one click in a spreadsheet.
- Pay for the ideas you pull, not a month: no plan to cancel.
- CSV, Excel or JSON output, ready for a content brief or an AI writing agent.
How it works
- Open Keyfern on Apify, enter your topic as the seed and leave question and preposition expansion on.
- Run it; filter the intent column to question or comparison.
- Group by cluster to turn the phrases into article sections or FAQs.
FAQ
Why not AnswerThePublic?
Keep it if you like its visual wheels and use it every week. If you need question keywords now and then, Keyfern gives them as a spreadsheet from five engines for $0.001 per idea, without a US$20/month plan.
Does Keyfern show search volume?
No. Neither autocomplete nor Keyfern gives volume; the signal score is a relative ranking from how many engines suggest a phrase and how high.
Which languages and countries?
Set the language and country in the input; the engines answer for that market.