Side by side
| Question | Plausity | MentionFox Full Report |
|---|---|---|
| What it checks | Covers due diligence from data room ingestion to findings and reporting. Detects red flags automatically. Flags evidence gaps in the diligence. | What the record says about the company itself: who runs and owns it, money raised, lawsuits and legal standing, layoffs and leadership changes. |
| What you give it | Covers due diligence from data room ingestion to findings and reporting. | Only the company's name or website: no deck or data room needed. |
| Sources it cites | Not stated on its site | Every claim in the report links to its source. |
| How fast | Not stated on its site | The free check answers on this page at once; the Full Report is ordered per company. |
| Free option | Not stated on its site | A free company check on this page, no sign-up, and a free sample report. |
| Who it is for | Buy-side M&A and private equity deal teams working from a data room. | Anyone about to sign with, invest in, buy from or partner with a company: before a first meeting, a term sheet, a merger talk or a supplier contract. |
| Price | Not published; access by demo request. See Plausity's pricing page | One report, no subscription. See the prices |
What Plausity says it does
Each line is from Plausity's own site, checked on November 1, 2026.
- Covers due diligence from data room ingestion to findings and reporting. (source)
- Flags evidence gaps in the diligence. (source)
- Turns the diligence into a first draft of an investment committee memo. (source)
- Detects red flags automatically. (source)
- Has launched a background check and integrity due diligence product. (source)
- Is built for buy-side due diligence in M&A and private equity. (source)
- Access starts with a demo request. (source)
When Plausity is the better choice
You are running a full M&A or private equity process with a data room, and need the documents read, evidence gaps and red flags found and a first draft of the investment committee memo. Plausity covers that whole workflow; MentionFox does not work inside a data room.
Where MentionFox fits
When you need an outside view of a company before you commit: who runs and owns it, the money it has raised, its lawsuits and legal standing, its layoffs and leadership changes. You give it a name or a website, nothing else, and every claim in the report links to its source. It is one report on one company, with no subscription. It does not read your deal documents, score decks against a thesis or build financial models; for those, use the tool above.
Questions, answered
Is Plausity or MentionFox better for due diligence?
It depends on what you have. You are running a full M&A or private equity process with a data room, and need the documents read, evidence gaps and red flags found and a first draft of the investment committee memo. If you have only a company's name or website and want what the record says about it, with every claim linked to its source, MentionFox is the faster start, and the first check is free.
Can I try MentionFox before paying?
Yes. Run the free company check at the top of this page with no sign-up, and see a finished Full Report in the sample. A Full Report is one payment for one company, with no subscription.