AI Tools · AI Productivity

Crystal (Crystal Knows)

Personality AI that builds DISC and other profiles for you and your contacts, with an AI coach and a LinkedIn and CRM extension.

Our take: Crystal is easy to try: the free account keeps all six assessments and never expires.

Best forPersonality-based selling

ReviewedOct 2026Freemium

6.85 criteria · see breakdown

Try CrystalFree; Premium $49/mo or $490/yr

Crystal (often searched as Crystal Knows) builds a personality profile from six assessments, coaches you daily, and predicts the DISC style of people you view on LinkedIn, Salesforce and HubSpot. The free account never expires but allows 10 contacts and 10 LinkedIn reads; Premium costs $49 a month or $490 a year.

The bottom line

A free personality profile for you, and $49 a month for unlimited reads on other people.

Our score

Reviewed by the Conversion Gems editorial team. Hover a facet to focus it; click to pin.Tap a facet to focus it.

Community ratings

Shown for context only. Our score is independent.

4.6

450+ reviews

4.6 / 5 aggregate · across 1 source

Third-party ratings shown verbatim; aggregate weighted by review volume.

What it is, and why we rate it

One line each. Open a row for detail.

What it really isA personality-profile app that now leads with AI coaching but still predicts the DISC style of contacts on LinkedIn and in CRMs.

Our takeCrystal is easy to try: the free account keeps all six assessments and never expires.

The useful sales part, reading other people's profiles, is capped at 10 contacts and 10 LinkedIn reads until you pay $49 a month. Treat predictions about others as a prompt for how to open a conversation, not as fact.

Why we rate itA generous free tier and personality insights inside the tools salespeople already use.

The catchUnlimited contact reads cost $49 a month per person, and profiles of others are predictions, not tests.

Best / not good for

Best for

B2B sales reps
Recruiters
Managers running DISC team reports

Not good for

Teams that need contact data or email sequences
Anyone wanting validated assessments of other people without their input

Trade-offs

Friction report

Trade-offs to know before signing up.

Time to value
Minutes: take an assessment or open a LinkedIn profile with the extension.
Scale breakpoint
The 11th contact or LinkedIn read on the free plan.
Walled garden
Low: extension works in LinkedIn, Salesforce and HubSpot, and an API and MCP server are available.

Still a fit?

If none of these block you, start on the free plan.

Try Crystal

Crystal pricing

Plan	Price	Key limits
Free	$0, never expires	All 6 assessments, 10 contacts, 10 LinkedIn reads, 6 days of coaching
Premium	$49/month or $490/year	Unlimited LinkedIn reads, contact briefs, comparisons, unlimited coaching
Premium for Teams	$49 per seat/month	Seats managed by an admin
Buyer Profiles	Custom (quote)	No self-serve checkout; demo required
Personality API	Credit-based	Pay per profile created and per read; prompt endpoint free

From Crystal's pricing page, checked 4 October 2026.

Crystal Assessments plans

Tier	Monthly	Yearly	Participants and reports per month
Basic	$99	$990	5
Pro	$249	$2,490	20
Max	$499	$4,990	50

From Crystal's pricing page, checked 4 October 2026. All tiers include DISC or all six frameworks and the same report types.

Frequently Asked Questions

How much does Crystal Knows cost?

Crystal has a free plan that never expires. Premium costs $49 a month or $490 a year, and Premium for Teams is $49 per seat per month. Team assessment plans run from $99 to $499 a month, and Buyer Profiles is quote-based (checked 4 October 2026).

Is Crystal Knows free?

Yes, there is a free account with all six assessments, your full profile, up to 10 contacts and 10 LinkedIn reads. Unlimited LinkedIn reads, contact briefs and daily coaching need Premium.

Is Crystal Knows still a sales tool?

Partly. The homepage now presents Crystal as an AI coach, but the Chrome extension still predicts personality and gives call and meeting tips in LinkedIn, Salesforce and HubSpot, and Buyer Profiles and a Personality API are sold to teams.

How does Crystal know someone's personality?

For you, it uses the assessments you take. For other people, it predicts a DISC profile from public information such as a LinkedIn profile, so treat those results as an estimate, not a test result.

How do I log in to Crystal Knows?

Conversion Gems is a review site, not Crystal. Sign in on Crystal's own site at crystalknows.com/app/login.