Alternatives to Twenty
Alternatives

EspoCRMOpen-source CRM you can self-host for free, or run as a hosted cloud with per-user plans and user minimums.
Why it’s an alternative: Open-source CRM that can be self-hosted for free or run in the vendor cloud.
Differs on: Free plan, paid from $15/mo, while Twenty is free plan, paid from $9/mo.
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AttioCustomisable CRM for revenue teams with a free tier, per-user Plus and Pro plans and a custom-quoted Enterprise tier.
Why it’s an alternative: Customisable hosted CRM with a free tier.
Differs on: Free plan, paid from $44/mo, while Twenty is free plan, paid from $9/mo.
Not yet scoredCompare with Twenty 
HubSpot Sales HubHubSpot's CRM platform: a free CRM core with paid Sales Hub tiers, marketing, service and content tools on one customer record.
Why it’s an alternative: CRM platform with a free core.
Differs on: Free, while Twenty is free plan, paid from $9/mo.
Not yet scoredCompare with Twenty
EspoCRM and Attio list Twenty as an alternative in turn. Alternatives are editorial relations, never votes.