Proofsource vs Rankshift
Rankshift offers the widest engine list here, unlimited projects and seats on every plan and a 30-day trial. Proofsource offers fewer, deeper reads: four engines asked every day on Custom with a 95% interval on each figure, and a draft fix for each gap.
Proofsource and Rankshift in five facts
Price
- Proofsource
- Free trial, then Custom from $64 per brand per month (final price discussed on demo call)
- Rankshift
- Starter €77, Professional €177, Business €399 a month billed monthly ($92, $210, $473); less billed annually; Enterprise custom[1]
Free trial
- Proofsource
- 2 days free, 4 engines, no card
- Rankshift
- 30 days free, no credit card needed[2]
AI engines covered
- Proofsource
- 4 on the trial, all 10 on Custom
- Rankshift
- ChatGPT, Gemini, Claude, Perplexity, Copilot, Google AI Overviews, Google AI Mode, Mistral and Meta AI[2]
How often answers are re-read
- Proofsource
- Daily on Custom, or hourly
Seats
- Proofsource
- Unlimited on Custom
- Rankshift
- Unlimited on every plan[1]
What Rankshift is, and who it is for
AI visibility analytics across nine engines. Rankshift tracks prompts across ChatGPT, Gemini, Claude, Perplexity, Copilot, Google AI Overviews, Google AI Mode, Mistral and Meta AI, with visibility scoring, share of voice, citation and crawler analytics.[2]
For SEO teams, marketing teams and agencies. It says more than 850 marketing teams use it, and unlimited projects on every plan let an agency give each client its own project.[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 Rankshift, fact by fact
Each Rankshift cell links to the page it came from. Where Rankshift does not publish a detail, the cell says so instead of guessing.
| Question | Proofsource | Rankshift |
|---|---|---|
| Price | Free trial, then Custom from $64 per brand per month (final price discussed on demo call), arranged on a demo call | Starter €77, Professional €177, Business €399 a month billed monthly ($92, $210, $473); less billed annually; Enterprise custom[1] |
| Free trial | 200 answers. 25 Prompts/Question. Top AI engines. 2 days. Free. No card, no sales call | 30 days free, no credit card needed[2] |
| 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 |     Copilot Google AI OverviewsGoogle AI ModeMistral ChatGPT, Gemini, Claude, Perplexity, Copilot, Google AI Overviews, Google AI Mode, Mistral and Meta AI[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 | Daily or weekly prompt refresh on every plan; its homepage also lists hourly[1][2] |
| Seats | Unlimited seats on Custom, with client workspaces, scoped members, Client Viewer seats and SSO set up at onboarding | Unlimited on every plan[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 | An action center with prioritized recommendations, a content brief generator and an AI content writer[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 Rankshift shines
- Nine engines, Mistral and Meta AI included. Rankshift's list runs to nine engines, including Mistral and Meta AI alongside Copilot and both Google surfaces.[2]
- Unlimited seats and projects from Starter. Every Rankshift plan includes unlimited projects and seats, so an agency pays by prompt volume, not by client or user.[1]
- A long trial. Rankshift's free trial runs 30 days with no credit card, enough to watch a month of answers.[2]
Where Proofsource shines
- Grok and DeepSeek on Custom. Custom covers all 10 engines Proofsource tracks, including Grok and DeepSeek, which Rankshift's engine list does not name.
- A stated margin of error. Proofsource publishes a 95% Wilson interval with every percentage and holds alerts until a change clears it; Rankshift's pricing page publishes no interval.
- The page behind each gap. Each lost question names the pages the engines cited instead, with a draft fix held for approval.
Proofsource or Rankshift: the fair verdict
Rankshift wins on breadth: nine engines, unlimited seats and projects, a refresh cadence you choose and a 30-day trial. If you need Mistral or Meta AI today, choose Rankshift.
Proofsource wins on how far you can trust and act on each figure: daily reads of four engines on Custom, intervals on every percentage, and fixes drafted from the pages the engines actually cited.
Choose Rankshift if you want
- Nine engines, Mistral and Meta AI included
- Unlimited seats and projects from Starter
- A long trial
Choose Proofsource if you want
- Grok and DeepSeek on Custom
- A stated margin of error
- The page behind each gap
Already using Rankshift?
You do not have to choose on day one. Here is how teams run Proofsource beside Rankshift and decide on their own data.
Keep Rankshift running
Nothing about trying Proofsource needs you to stop Rankshift. Your history and reports there stay where they are.
Bring your questions across
Export or copy the prompts you track in Rankshift 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 Rankshift: what buyers ask
What AI visibility tools give a normalized score so I can compare my brand's AI presence to the market leader?
Some AI answers to that question named Rankshift, which reports an AI visibility score and share of voice with competitor benchmarking. Proofsource reports which buyer questions name you and who is named instead, engine by engine, with a 95% interval on every rate. An interval shows whether a small gap to the leader is real.
What are the best alternatives to Otterly.AI for tracking brand recommendations in AI search?
Some AI answers to that question named Rankshift: nine engines, a refresh cadence you choose and a 30-day trial, per its own pages. Proofsource asks ChatGPT, Perplexity, Claude and Google AI Overviews every day on Custom with an interval on every figure. We have not verified Otterly.AI's plans here; check its own pricing page.
How much does Rankshift cost?
Its pricing page shows Starter at €77, Professional at €177 and Business at €399 a month billed monthly, or $92, $210 and $473, with lower prices billed annually and a custom Enterprise plan.
Does Rankshift have a free trial?
Yes, 30 days, with no credit card needed.
Where each fact about Rankshift comes from
- Rankshift pricing, read 5 Oct 2026.
- Rankshift homepage, read 5 Oct 2026.
Vendors change their pages. If a Rankshift 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
