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Is Synthesia safe with your data?

C
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Synthesia

55/100

Partial disclosure · high confidence

Synthesia earns a C (55/100) because it discloses its data practices only in part.

#57

of 216 apps ranked

55

score · Image & video avg 47

+8

vs category average

Grade scaleA · 70–100B · 60–69C · 48–59D · 35–47F · 0–34

Synthesia documents biometric and avatar data handling in unusual detail and names a data protection officer, but it does not say whether user inputs train its models, gives no retention period for account data, and never commits to a breach notification timeline.

What Synthesia's privacy policy and terms of service say about your data

Biometric handling is spelled out

The policy names the purposes for facial geometry and voiceprint processing, requires explicit consent for it, holds verification recordings only until the sample comparison completes, and commits to permanently destroying biometric data afterwards, including at its vendors.

Training use is left unstated

Model improvement appears only as a legitimate interest in improving the platform and enhancing model capabilities and safety. The policy never says whether the scripts, voice samples and videos users submit are used to train models, and it names no opt-out.

Retention has no clock

Account data is kept for as long as necessary for the purposes described in the policy, with no number attached, and the policy reserves the right to keep information after an account is deleted to pursue legitimate business interests.

Ownership runs to the employer

Content a user submits is owned by the Customer that bought the subscription, typically their employer, which controls retention, export and deletion settings. The individual user who recorded the voice or likeness holds no ownership and is told to ask the Customer about its plans.

What the policy is silent or vague on

  • Not stated: keeping user inputs out of model training
  • Not stated: a way to opt out of training
  • Not stated: whether training use differs by plan
  • Not stated: a deletion timeline after closure or request

Synthesia privacy rating

Training-data use0 of 4 disclosed
Keeps user inputs out of model training, or makes training opt-inSilent
Names a way to opt out of or into trainingSilent
Says whether training use differs by plan or tierSilent
Lets the user keep ownership of generated outputsPartial
Data-subject rights3 of 5 disclosed
Grants a right to access your dataDisclosed
Grants a right to delete your dataPartial
Offers data portability in a usable formatDisclosed
Grants a right to correct your dataDisclosed
Grants a way to object to or opt out of processingPartial
Retention and deletion1 of 4 disclosed
States a retention period for your dataPartial
States a deletion timeline after closure or requestSilent
Sets a shorter retention for AI conversation logsDisclosed
Commits to collecting only the data it needsSilent
Third-party sharing3 of 5 disclosed
Lists the categories of third parties it shares withDisclosed
References a sub-processor list or data processing agreementPartial
Does not sell or share data for advertising, or offers opt-outDisclosed
Names a safeguard for international data transfersDisclosed
States a standard for government and law-enforcement accessPartial
Transparency2 of 5 disclosed
Discloses that you are interacting with AIPartial
Marks AI-generated or synthetic outputSilent
Enumerates the categories of data it collectsDisclosed
Maps processing purposes to legal basesDisclosed
Is versioned and dated, with change noticePartial
Sensitive data and children3 of 3 disclosed
Discloses automated decisions and a human-review pathNot applicable
Limits the use of special-category dataDisclosed
Governs biometric data specificallyDisclosed
States protections for children's dataDisclosed
Security and accountability1 of 3 disclosed
Describes its security safeguardsPartial
Commits to breach notificationSilent
Names a certification or a privacy contactDisclosed
DisclosedPartialSilentAdverseNot applicable

Details

Category
Image & video
Modalities
video
Processes biometrics
Yes
Policy last updated
2026-10-01
Region scored
Global / US-default
Last assessed
2026-10-13

Documents examined

Other image & video apps

Each grade reflects our analysis of what an app states in its public privacy policy and terms as of the assessment date. It measures the transparency of those documents, not the company's actual data practices, security, or compliance. Grades are our opinion, offered for general information. Full disclaimer.

Is Synthesia safe with your data? Grade C | VerifyWise