· storage

Dropbox vs Sync.com

Dropbox's policy answers the question and is graded B. Sync.com's doesn't say either way. That's a finding about the document, not a worse grade.

Grades read the plan most people are on. Each company's full entry has every plan, every clause and the archived copy it was read from.

Dropbox

Dropbox commits not to build generative AI models on customer content without consent. The commitment is real, but it lives in a principles page, not the policy.

Verdict

By default: Does not train on you by default
The way out: No opt-out in the policy
What B means: Off by default. Training happens only if you opt in, or not at all.
Last checked: 5 Oct 2026

Read the full verdict →

Sync.com

Sync.com sells end-to-end encrypted storage. Its privacy policy mentions training once, and it is about staff.

Verdict

By default: The policy does not say
The way out: Nothing to opt out of on the record
Last checked: 14 Sept 2026

Read the full verdict →

Dropbox: every plan

Dropbox · what each plan can refuse · checked 5 Oct 2026

1 PLAN

Plan

Exposure

Trains

Opt-out path

Retention

De-identified

Human review

All accounts

18 / 100

Nothing to switch off

Not stated

Unknown

How the score is made18 / 100 · the rubric

Default14 / 50

Off by default

Way out0 / 33

Nothing is on, so nothing needs refusing

Paywall0 / 4

No paywall on the control

Scope0 / 4

One kind of data is in scope

Human review2 / 4

The policy does not say whether people read it

De-identified2 / 2

Nothing is said about de-identification

EVERY CELL ABOVE IS SOURCED FROM A QUOTED CLAUSE OR A DOCUMENTED SEARCH · SEE THE EVIDENCE ABOVE

EXPOSURE IS SCORED 0–100 ON ONE AXIS, HOW HARD IT IS TO STOP THIS PLAN TRAINING ON YOU. THE GRADE IS THE BAND IT FALLS IN: A 0–10 · B 11–25 · C 26–45 · D 46–60 · E 61–80 · F 81–100. HOW THE SCORE IS SET

All accountsTRAINS: NO

OPT-OUT: Nothing to switch off
RETENTION: Not stated
EXPOSURE: 18 / 100
DE-IDENTIFIED: Not stated
HUMAN REVIEW: Unknown

Sync.com: every plan

Sync.com · what each plan can refuse · checked 14 Sept 2026

1 PLAN

Plan

Exposure

Trains

Opt-out path

Retention

De-identified

Human review

All plans

UNCLEAR

Not established, see below

Not stated

—

Not established

EVERY CELL ABOVE IS SOURCED FROM A QUOTED CLAUSE OR A DOCUMENTED SEARCH · SEE THE EVIDENCE ABOVE

All plansUNCLEAR

OPT-OUT: Not established
RETENTION: Not stated
EXPOSURE: —
DE-IDENTIFIED: —
HUMAN REVIEW: Not established

Every grade on this page is the one on the company's own entry, read from a dated, archived copy of its policy. Nothing here is computed separately. How grades are set · All comparisons