Proofsource vs Optimly
Optimly checks whether AI describes you correctly, weekly, and can do the fixing for you. Proofsource checks whether AI names you at all and who it names instead, daily if you pick it, with a drafted fix for each gap.
Proofsource and Optimly in five facts
Price
- Proofsource
- Free trial, then plans from $9 a month (5 questions on ChatGPT, weekly)
- Optimly
- Free snapshot; Optimly Platform $800 a month; AI Brand Execution Program from $4,000 a month[1]
Free trial
- Proofsource
- 2 days free, 4 engines, no card
- Optimly
- Free: one AI Brand Snapshot and one recommendation, a one-time snapshot[1]
AI engines covered
- Proofsource
- 4 on the trial, up to 4 on a paid plan
- Optimly
- ChatGPT, Claude, Gemini and Perplexity[1]
How often answers are re-read
- Proofsource
- Daily, weekly or monthly, you choose
- Optimly
- Weekly[1]
Seats
- Proofsource
- Unlimited team members
- Optimly
- Not published
What Optimly is, and who it is for
Accuracy, not mentions. Optimly scores every answer against your verified Business Profile, so it shows where a model is factually wrong about you and which source it learned that from.[1][2]
For teams without a dashboard reader. Optimly says it is built for teams that do not have someone to interpret monitoring dashboards, turning findings into the next prepared, owner-approved action.[2]
Software or service. The Platform is the weekly instrument and its queue; the AI Brand Execution Program adds 12 delivered actions a month, onsite or offsite, from content to entity records and review platforms.[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 Optimly, fact by fact
Each Optimly cell links to the page it came from. Where Optimly does not publish a detail, the cell says so instead of guessing.
| Question | Proofsource | Optimly |
|---|---|---|
| Price | Free trial, then one price card at self-serve checkout: each brand pays daily ($28 a brand a month) or weekly ($7), plus each question on each engine, plans from $9 a month (5 questions on ChatGPT, weekly). No overage charges | Free snapshot; Optimly Platform $800 a month; AI Brand Execution Program from $4,000 a month[1] |
| Free trial | 200 answers. 25 Prompts/Question. Top AI engines. 2 days. Free. No card, no sales call | Free: one AI Brand Snapshot and one recommendation, a one-time snapshot[1] |
| AI engines covered | ChatGPT, Perplexity, Claude and Google AI Overviews on the trial. Paid plans pick from those 4, each priced per question; Google AI Mode, Gemini, Microsoft Copilot, Grok, DeepSeek and Meta AI are enabled on a call |     ChatGPT, Claude, Gemini and Perplexity[1] |
| How often answers are re-read | Daily or weekly, chosen per plan; daily is one answer per question per engine per UTC day. The trial reads every engine on 2 consecutive days | Weekly[1] |
| Seats | Unlimited team members on every plan. The agency workspace is free, with client workspaces, scoped members and Client Viewer seats set up on a call | Not published |
| How a number is measured | A 95% Wilson interval on every percentage; alerts wait until a change clears it | Every answer scored for factual accuracy against your verified Business Profile[1] |
| What it does about a gap | Each gap names the pages the engine cited instead, with a draft fix held for your approval | A prioritized fix queue; the Execution Program delivers 12 actions a month for you[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 Optimly shines
- Factual accuracy, sourced. Optimly scores answers against what you have verified as true and shows which source each model is reading.[1]
- Done for you. The Execution Program builds content, places brand data where AI reads it and measures what moved, twelve actions a month.[1]
- Gemini in the set. Optimly runs Gemini alongside ChatGPT, Claude and Perplexity. On Proofsource, Managed covers Gemini.[1]
Where Proofsource shines
- Daily, not weekly. Answer sets move day to day. Proofsource can re-read every engine daily; Optimly runs your questions weekly.[1]
- Google AI Overviews included. Proofsource reads ChatGPT, Perplexity, Claude and Google AI Overviews. Optimly's platform lists ChatGPT, Claude, Gemini and Perplexity.[1]
- A free trial that is the real measurement. 200 answers. 25 Prompts/Question. Top AI engines. 2 days. Free. No card, no sales call. Optimly's free tier is a one-time snapshot.[1]
Proofsource or Optimly: the fair verdict
Pick Optimly if your problem is AI describing you wrongly, weekly measurement is enough, and you would rather pay a team to execute the fixes.
Pick Proofsource if your problem is AI not naming you, and you want reads on ChatGPT, Perplexity, Claude and Google AI Overviews, daily if you like, with a drafted fix your team approves.
Choose Optimly if you want
- Factual accuracy, sourced
- Done for you
- Gemini in the set
Choose Proofsource if you want
- Daily, not weekly
- Google AI Overviews included
- A free trial that is the real measurement
Already using Optimly?
You do not have to choose on day one. Here is how teams run Proofsource beside Optimly and decide on their own data.
Keep Optimly running
Nothing about trying Proofsource needs you to stop Optimly. Your history and reports there stay where they are.
Bring your questions across
Export or copy the prompts you track in Optimly 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 Optimly: what buyers ask
What's the best tool for daily monitoring of my brand's visibility across ChatGPT, Perplexity, Claude and Google AI Overviews?
When we asked AI engines this, some answers named Optimly, which runs buyer questions weekly on ChatGPT, Claude, Gemini and Perplexity. Proofsource reads exactly those four engines, ChatGPT, Perplexity, Claude and Google AI Overviews, on the trial and by default on every paid plan and can re-read them daily.
How much does Optimly cost?
The Platform is $800 a month; the Execution Program starts at $4,000 a month; a one-time snapshot is free.
How often does Optimly measure?
Weekly, according to its pricing page.
Where each fact about Optimly comes from
- Optimly pricing and pricing FAQ, read Oct 5, 2026.
- Optimly FAQ, read Oct 5, 2026.
Vendors change their pages. If a Optimly 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
