Fit: PartialCore overlap exists; named gaps need replacing or rebuilding.Fit is not feature parity.CTier CDaily-workflow features need a paid editionGNU Affero General Public License v3.0Permissions of this strongest copyleft license are conditioned on making available complete source code of licensed works and modifications, which include larger works using a licensed work, under the same license. Copyright and license notices must be preserved. Contributors provide an express grant of patent rights. When a modified version is used to provide a service over a network, the complete source code of the modified version must be made available.MayCommercial useModificationDistributionPatent usePrivate useMustLicense and copyright noticeState changesDisclose sourceNetwork use is distributionSame licenseNoLiabilityWarrantySummary from GitHub's choosealicense.comSelf-hostable: yesYou can run it on your own server.
Link surveys and embedded/in-app feedback overlap Typeform. Recreate Typeform forms and automations; current CE has one workspace and paid workflow/segmentation gates.
Source-available or unresolved
Kept apart: these are not open source by the OSI definition, or their license scope is not settled.
Fit: PartialCore overlap exists; named gaps need replacing or rebuilding.Fit is not feature parity.UTier ULicense or parity scope unresolvedGNU Affero General Public License v3.0Permissions of this strongest copyleft license are conditioned on making available complete source code of licensed works and modifications, which include larger works using a licensed work, under the same license. Copyright and license notices must be preserved. Contributors provide an express grant of patent rights. When a modified version is used to provide a service over a network, the complete source code of the modified version must be made available.MayCommercial useModificationDistributionPatent usePrivate useMustLicense and copyright noticeState changesDisclose sourceNetwork use is distributionSame licenseNoLiabilityWarrantySummary from GitHub's choosealicense.comSelf-hostable: yesYou can run it on your own server.
Conversational forms, logic, CSS and CSV export overlap Typeform; recreate existing forms and integrations. No verified automatic Typeform import.
Fit: PartialCore overlap exists; named gaps need replacing or rebuilding.Fit is not feature parity.UTier ULicense or parity scope unresolvedGNU General Public License v2.0The GNU GPL is the most widely used free software license and has a strong copyleft requirement. When distributing derived works, the source code of the work must be made available under the same license. There are multiple variants of the GNU GPL, each with different requirements.MayCommercial useModificationDistributionPrivate useMustLicense and copyright noticeState changesDisclose sourceSame licenseNoLiabilityWarrantySummary from GitHub's choosealicense.comSelf-hostable: yesYou can run it on your own server.
Research-oriented survey workflows differ from Typeform conversational forms. Rebuild questions, branching, styling and integrations; LSS supports LimeSurvey survey interchange rather than Typeform imports.
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GNU Affero General Public License v3.0 Permissions of this strongest copyleft license are conditioned on making available complete source code of licensed works and modifications, which include larger works using a licensed work, under the same license. Copyright and license notices must be preserved. Contributors provide an express grant of patent rights. When a modified version is used to provide a service over a network, the complete source code of the modified version must be made available. May Commercial useModificationDistributionPatent usePrivate use Must License and copyright noticeState changesDisclose sourceNetwork use is distributionSame license No LiabilityWarranty Summary from GitHub's choosealicense.com Self-hostable: yesYou can run it on your own server.