Proofsource vs Frase
Frase writes and publishes content, and watches AI engines as one feature of that. Proofsource starts from the measurement, on all four panel engines from day one, with the evidence behind every number, drafts the fix for each gap, and on its Managed plan its team writes and publishes the content for you.
Proofsource and Frase in five facts
Price
- Proofsource
- Free trial, then Custom from $64 per brand per month (final price discussed on demo call)
- Frase
- Starter $49/mo ($39 billed yearly), Professional $129/mo ($103), Scale $299/mo ($239); Enterprise is custom[1]
Free trial
- Proofsource
- 2 days free, 4 engines, no card
- Frase
- Free 7-day trial, no credit card[1]
AI engines covered
- Proofsource
- 4 on the trial, all 10 on Custom
- Frase
- ChatGPT and Google AI on Starter; Perplexity added on Professional; Claude and Gemini added on Scale[1]
How often answers are re-read
- Proofsource
- Daily on Custom, or hourly
- Frase
- Daily tracking with alerts[2]
Seats
- Proofsource
- Unlimited on Custom
- Frase
- 1 on Starter, 3 on Professional, 5 on Scale; extra seats $29/mo each[1]
What Frase is, and who it is for
A content operating system for AI search. Frase audits a site, researches topics, drafts in your brand voice and publishes to WordPress, Webflow, Sanity, Wix or its own CMS. Its AI Visibility feature monitors where AI engines cite you, with daily tracking and alerts.[1][2]
For teams whose job is producing content. Plans are sized by seats, sites, articles and audit pages, with AI Visibility tracking 50, 200 or 500 prompts. Frase also classifies prompts by buying stage and targets them in 40+ countries.[1][2]
Proofsource is an AI intelligence platform that shows which buyer questions name your brand in ChatGPT, Perplexity, Claude and Google AI Overviews, who gets named instead, and exactly what to fix.
Proofsource and Frase, fact by fact
Each Frase cell links to the page it came from. Where Frase does not publish a detail, the cell says so instead of guessing.
| Question | Proofsource | Frase |
|---|---|---|
| Price | Free trial, then Custom from $64 per brand per month (final price discussed on demo call), arranged on a demo call | Starter $49/mo ($39 billed yearly), Professional $129/mo ($103), Scale $299/mo ($239); Enterprise is custom[1] |
| Free trial | 200 answers. 25 Prompts/Question. Top AI engines. 2 days. Free. No card, no sales call | Free 7-day trial, no credit card[1] |
| AI engines covered | ChatGPT, Perplexity, Claude and Google AI Overviews on the trial. Custom covers all 10 engines, adding Google AI Mode, Gemini, Microsoft Copilot, Grok, DeepSeek and Meta AI, switched on at onboarding |     ChatGPT and Google AI on Starter; Perplexity added on Professional; Claude and Gemini added on Scale[1] |
| How often answers are re-read | Daily on Custom by default, one answer per question per engine per UTC day, or hourly or any frequency you choose; the trial reads every engine on 2 consecutive days | Daily tracking with alerts[2] |
| Seats | Unlimited seats on Custom, with client workspaces, scoped members, Client Viewer seats and SSO set up at onboarding | 1 on Starter, 3 on Professional, 5 on Scale; extra seats $29/mo each[1] |
| How a number is measured | A 95% Wilson interval on every percentage; alerts wait until a change clears it | No confidence figure published; a weekly benchmark compares your citation rate with your industry median per engine[2] |
| What it does about a gap | Each gap names the pages the engine cited instead, with a draft fix held for your approval | AI Visibility monitors and alerts but does not auto-fix; the content side writes 10 to 100 articles a month by plan and publishes them[1] |
Where each shines
Both tools are built well for different teams. Each point is a strength, read from that vendor's own pages.
Where Frase shines
- It writes and publishes. Frase drafts articles in your brand voice and publishes them to your CMS, and Content Guard proposes revisions when a page starts to slip on Google.[1]
- A whole content stack at a low entry price. Starter bundles articles, audits and AI Visibility for one site, with a self-serve 7-day trial and no card.[1]
- Buying-stage and country cuts. Frase sorts prompts into awareness, consideration and decision, scores visibility per stage, and supports per-prompt country targeting in 40+ countries.[2]
Where Proofsource shines
- Claude and the full panel on day one. Frase's Starter plan tracks ChatGPT and Google AI, and Claude arrives on Scale. Proofsource asks ChatGPT, Perplexity, Claude and Google AI Overviews every question from the free trial on.[1]
- An interval beside every benchmark. Every Proofsource number carries a 95% Wilson interval and alerts wait until a change clears it. Frase publishes an industry benchmark but no confidence figure.
- Fixes aimed at the cited source. Each gap names the pages the engine quoted instead of you, so the fix targets the source the model already trusts rather than adding another article.
- Unlimited seats on Custom. Frase counts seats per plan and charges for each extra one.[1]
Proofsource or Frase: the fair verdict
If your team's bottleneck is producing content, Frase is the stronger buy, and its AI Visibility feature is a useful monitor on top.
If the bottleneck is knowing which buyer questions name you, who gets named instead and whether a change is real, Proofsource is built for exactly that.
Plenty of teams would run a writing tool and a measurement tool side by side.
Choose Frase if you want
- It writes and publishes
- A whole content stack at a low entry price
- Buying-stage and country cuts
Choose Proofsource if you want
- Claude and the full panel on day one
- An interval beside every benchmark
- Fixes aimed at the cited source
- Unlimited seats on Custom
Already using Frase?
You do not have to choose on day one. Here is how teams run Proofsource beside Frase and decide on their own data.
Keep Frase running
Nothing about trying Proofsource needs you to stop Frase. Your history and reports there stay where they are.
Bring your questions across
Export or copy the prompts you track in Frase and add them as buyer questions in Proofsource, so both tools ask the same things.
Run both side by side
Read the two for the same days on your own domain. Where the numbers differ, Proofsource shows the answers and the pages each engine cited, so you can see why.
Keep what serves your team
Many teams keep one tool for reporting and another for fixes. Pick on your own evidence, not on a comparison page.
Proofsource or Frase: what buyers ask
Can Frase monitor my brand daily across ChatGPT, Perplexity, Claude and Google AI Overviews?
Frase's AI Visibility tracks daily with alerts. On its pricing page, ChatGPT and Google AI come with Starter, Perplexity with Professional, and Claude and Gemini with Scale. Proofsource asks ChatGPT, Perplexity, Claude and Google AI Overviews every day from the free trial on.
Is Frase a Peec AI alternative for tracking prompt coverage?
When we asked AI engines for Peec AI alternatives, some answers named Frase. It tracks 50 to 500 prompts by plan and reports share of voice and cited URLs, as part of a content platform. Proofsource is a dedicated measurement tool with a coverage matrix of the phrasings that name you. We have not verified Peec AI's plans here.
How much does Frase cost?
Frase lists Starter at $49 a month ($39 billed yearly), Professional at $129 ($103) and Scale at $299 ($239), with Enterprise priced on request.
Is there a free trial of Proofsource?
Yes. 200 answers. 25 Prompts/Question. Top AI engines. 2 days. Free. No card, no sales call. After that, Custom from $64 per brand per month (final price discussed on demo call).
Where each fact about Frase comes from
- Frase pricing, read 5 Oct 2026.
- Frase AI Visibility feature, read 5 Oct 2026.
Vendors change their pages. If a Frase fact here no longer matches their site, tell us through the contact page and we will correct it.
Your own trial settles this faster than any comparison page.
200 answers. 25 Prompts/Question. Top AI engines. 2 days. Free. No card, and the report is about your domain: which buyer questions name you, who gets named instead, and what to fix.
Google AI OverviewsGoogle AI Mode
