Is Monte Carlo safe with your data?

Monte Carlo

Monte Carlo Data, Inc.

48/100

Partial disclosure · high confidence

Monte Carlo earns a C (48/100) because it discloses its data practices only in part.

#120

of 211 apps ranked

score · Data platform avg 48

vs category average

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

Monte Carlo does not disclose whether customer inputs train its models, lacks opt-out mechanisms for training, and provides vague retention periods ("as long as necessary"), though it does clearly prohibit selling personal data and certifies DPF compliance.

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

Nothing said about model training

The policy is completely silent on whether customer data or inputs train Monte Carlo models. No opt-out appears either.

Customer keeps ownership of its data

The customer owns its data, and Monte Carlo uses it only "as necessary to provide the Service". Deletion follows on request.

No model training opt-out

Unlike Anthropic (which offers opt-out in account settings), Monte Carlo provides no disclosed mechanism to decline model training use.

Retention is open-ended

The policy keeps data "as long as necessary" with no named period. There is no deletion timeline after an account closes.

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

Monte Carlo 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 rights5 of 5 disclosed

Grants a right to access your dataDisclosed

Grants a right to delete your dataDisclosed

Offers data portability in a usable formatDisclosed

Grants a right to correct your dataDisclosed

Grants a way to object to or opt out of processingDisclosed

Retention and deletion0 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 logsSilent

Commits to collecting only the data it needsPartial

Third-party sharing2 of 5 disclosed

Lists the categories of third parties it shares withPartial

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

Transparency0 of 4 disclosed

Discloses that you are interacting with AISilent

Marks AI-generated or synthetic outputNot applicable

Enumerates the categories of data it collectsPartial

Maps processing purposes to legal basesSilent

Is versioned and dated, with change noticePartial

Sensitive data and children1 of 2 disclosed

Discloses automated decisions and a human-review pathNot applicable

Limits the use of special-category dataPartial

Governs biometric data specificallyNot applicable

States protections for children's dataDisclosed

Security and accountability0 of 3 disclosed

Describes its security safeguardsPartial

Commits to breach notificationSilent

Names a certification or a privacy contactPartial

DisclosedPartialSilentAdverseNot applicable

Details

Category: Data platform
Modalities: text
Processes biometrics: No
Policy last updated: 2025-04-10
Region scored: Global / US-default
Last assessed: 2026-08-13

Documents examined

Other data platform 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.