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Comet vs Gistify vs iAsk.ai

A side by side look at Comet, Gistify and iAsk.ai: pricing, features and what each one is best for.

All comparisons

What it costs

Pricing
Free
Pricing details
Free to download and use; Perplexity says its free version will always include Comet, and Comet has no separate paid plan.
Price range
$0/mo
Free option
Free tier
Plans
  • Free$0/mo

What it is

What it does
Comet is Perplexity's free AI web browser, with Perplexity search built in and an assistant that summarizes pages, answers questions and completes web tasks.

The details

Tags
ai-browsersearch-engineconversational-aiquestion-answering

What it costs

Pricing
Paid
Pricing details
Paid: $9.95/month, or $99.95/year ($8.33/month billed annually), for unlimited searches; a weekly plan is also offered. New accounts get 20 lifetime free searches with no credit card, which is a trial rather than a free plan.
Price range
$9.95/mo
Free option
Free trial only
Plans
  • Pro$9.95/mo

What it is

What it does
Gistify sends one question to ChatGPT, Claude, Gemini and Grok at once, then shows where the four models agree, where they differ, and each full answer.

The details

Tags
conversational-aiquestion-answeringmulti-modelllm-comparisonconsensus

What it costs

Pricing
Freemium
Pricing details
Free tier with unlimited daily searches on the non-Pro model, writer, summarizer and history, supported by limited ads - iAsk Pro $9.95/month for the strongest model without ads
Price range
$0 - $9.95/mo
Free option
Free tier
Plans
  • iAsk Free$0/mo
  • iAsk Pro$9.95/mo

What it is

What it does
AI answer engine aimed at students and researchers, with a video tutor, document analysis, an Ask 5 AIs comparison mode and unlimited free daily searches.

The details

Tags
conversational-aiquestion-answeringsearch-enginechatstudents
Comet logo
Gistify logo
iAsk.ai logo

Read the full reviews

What each one is actually like to use, tested by hand rather than summarised from the vendor’s own page.

What we wrote about these