Proofsource vs Sonarvue
Sonarvue gives every plan eight engines and keeps the verbatim answers as evidence. Proofsource asks four engines every day and tells you whether a change is real before you act on it.
Proofsource and Sonarvue in five facts
Price
- Proofsource
- Free trial, then Custom from $64 per brand per month (final price discussed on demo call)
- Sonarvue
- Starter $29/mo (25 prompts, 1 brand), Growth $299/mo (100 prompts, 5 brands), Scale $799/mo (500 prompts, 15 brands)[1]
Free trial
- Proofsource
- 2 days free, 4 engines, no card
- Sonarvue
- 7-day trial with 10 prompts, no card[1]
AI engines covered
- Proofsource
- 4 on the trial, all 10 on Custom
How often answers are re-read
- Proofsource
- Daily on Custom, or hourly
- Sonarvue
- Saved prompts are re-run over time; the frequency is not published[2]
Seats
- Proofsource
- Unlimited on Custom
- Sonarvue
- 3 members on Starter, 10 on Growth, 50 on Scale[1]
What Sonarvue is, and who it is for
Evidence over a score. Sonarvue tracks how answer engines mention, recommend and cite brands, keeping the verbatim answer, your rank and the citations alongside a visibility score.[2]
Priced for founders up to agencies. Plans scale from one brand and 25 prompts to 15 brands and 500 prompts, with workspaces, API and SSO on Scale and no per-seat charges.[1]
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 Sonarvue, fact by fact
Each Sonarvue cell links to the page it came from. Where Sonarvue does not publish a detail, the cell says so instead of guessing.
| Question | Proofsource | Sonarvue |
|---|---|---|
| Price | Free trial, then Custom from $64 per brand per month (final price discussed on demo call), arranged on a demo call | Starter $29/mo (25 prompts, 1 brand), Growth $299/mo (100 prompts, 5 brands), Scale $799/mo (500 prompts, 15 brands)[1] |
| Free trial | 200 answers. 25 Prompts/Question. Top AI engines. 2 days. Free. No card, no sales call | 7-day trial with 10 prompts, no 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 |      Google AI Overviews  8 on every paid plan: ChatGPT, Claude, Gemini, Perplexity, Google AI Overviews, Microsoft Copilot, Grok and Kimi[1][2] |
| 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 | Saved prompts are re-run over time; the frequency is not published[2] |
| Seats | Unlimited seats on Custom, with client workspaces, scoped members, Client Viewer seats and SSO set up at onboarding | 3 members on Starter, 10 on Growth, 50 on Scale[1] |
| How a number is measured | A 95% Wilson interval on every percentage; alerts wait until a change clears it | Not published |
| What it does about a gap | Each gap names the pages the engine cited instead, with a draft fix held for your approval | Keyword advisor, alerts when an answer moves, social listening on Reddit, LinkedIn and X[1][2] |
Where each shines
Both tools are built well for different teams. Each point is a strength, read from that vendor's own pages.
Where Sonarvue shines
- Eight engines from the first plan. Starter includes Copilot, Grok and Kimi alongside the big four, with no add-on pricing.[1][2]
- Verbatim answers kept. Every answer is stored with your rank and the citations, so the evidence is there to show a stakeholder.[2]
- Social threads in view. It monitors public Reddit, LinkedIn and X threads for your brand and category.[2]
Where Proofsource shines
- Daily, stated. Proofsource re-reads every question every day. Sonarvue's pages do not publish its re-run frequency.[2]
- An interval on every number. Proofsource publishes a 95% Wilson interval and holds alerts until a change clears it.
- A fix drafted for each gap. Each gap names the pages the engine cited instead of you, with a draft held for your approval.
Proofsource or Sonarvue: the fair verdict
Sonarvue is strong value if you want many engines and verbatim evidence at a low entry price.
Proofsource is the better pick when you need daily readings with stated uncertainty and a drafted fix for each gap.
Choose Sonarvue if you want
- Eight engines from the first plan
- Verbatim answers kept
- Social threads in view
Choose Proofsource if you want
- Daily, stated
- An interval on every number
- A fix drafted for each gap
Already using Sonarvue?
You do not have to choose on day one. Here is how teams run Proofsource beside Sonarvue and decide on their own data.
Keep Sonarvue running
Nothing about trying Proofsource needs you to stop Sonarvue. Your history and reports there stay where they are.
Bring your questions across
Export or copy the prompts you track in Sonarvue 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 Sonarvue: what buyers ask
How can I check which buyer questions consistently get my company recommended versus competitors?
Track the same buyer questions over time and compare the brands named. Sonarvue keeps the verbatim answers and ranks; Proofsource re-reads them daily and puts a 95% interval on every rate, so consistent means it held across samples.
How much does Sonarvue cost?
Sonarvue lists Starter at $29 a month, Growth at $299 and Scale at $799, with all eight engines on every paid plan.
Does Sonarvue track Google AI Overviews?
Yes. It lists Google AI Overviews among its eight default engines.
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 Sonarvue comes from
- Sonarvue pricing, read 5 Oct 2026.
- Sonarvue homepage and FAQ, read 5 Oct 2026.
Vendors change their pages. If a Sonarvue 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
