Proton Drive vs Sync.com: Privacy Comparison
Here we put Proton Drive head-to-head with Sync.com across the six privacy factors that matter most: their data collection practices, encryption implementation, third-party data sharing, user privacy controls, transparency, and historical track record. While both products address similar requirements, the philosophies they bring to protecting users diverge sharply. Our assessment finds that Proton Drive provides a noticeably better overall privacy experience, although neither service is without trade-offs that deserve a careful, detailed look.
Reading the Scorecard
The most useful starting point is the overall tally and the single dimension that decided it. Across the six privacy dimensions we score, Proton Drive finishes ahead of Sync.com, 50/60 to 38/60. That total reflects a side-by-side review in which one service is consistently the more privacy-respecting choice, even though both cover the same functional ground.
The largest single-dimension gap is in Data Collection, where Proton Drive leads by 2 points -- Proton Drive 10/10 to Sync.com 8/10. The tightest race is Data Collection, separated by just 2 points (Proton Drive 10/10, Sync.com 8/10). The deeper analysis that follows shows how the lead was built.
How Each Service Collects Data
The starting point for judging privacy is always how data is collected. The amount of user data a service captures, keeps, and works with is the single biggest factor behind its privacy exposure. Proton Drive shows more discipline on this front, collecting nothing beyond the bare minimum needed for the service to run. The competing option reaches for a much wider set of data, including behavioral patterns, device identifiers, and usage analytics that stretch beyond the essentials. In this category we rated Proton Drive 10/10 and Sync.com 8/10. The gap comes down to more than raw volume -- it is about the intent behind each piece of data and whether collecting it was ever justified.
Encryption Standards
Encryption protects user data both in transit and at rest, and the implementation quality varies dramatically between services. Proton Drive implements stronger encryption measures, including more robust protocols for data in transit and better protection for stored data. The specific encryption implementations differ in their coverage (which data is encrypted), their strength (which algorithms and key lengths are used), and whether end-to-end encryption is employed (preventing even the service provider from accessing user content). Proton Drive scored 6/10 while Sync.com scored 4/10 for encryption.
Who Else Gets Your Data
A service's willingness to hand data to outside parties is a make-or-break privacy factor. That covers advertising networks, analytics providers, business partners, and what happens when governments come asking. Proton Drive keeps a tighter lid on who can reach user data. These sharing habits shape security as much as privacy, since every extra party granted access becomes one more way a breach could happen. Scores: Proton Drive 7/10, Sync.com 5/10.
Controls You Can Actually Use
Individuals only hold real power over their data when a service's privacy controls are available and genuinely effective. The relevant tools include the option to opt out of data collection, ways to download and erase data, granular permission settings, and how readily users can exercise the rights afforded them by applicable privacy regulations. Proton Drive offers more complete and approachable privacy controls. Scores: Proton Drive 8/10, Sync.com 6/10.
Openness About Data Practices
At its core, transparency is about how clearly a service tells users what happens to their data. That means how understandable the privacy policy is, whether transparency reports exist, how promptly privacy inquiries are addressed, and whether changes to policy are flagged proactively. Proton Drive is the stronger performer on transparency overall. Without clear and accessible privacy communication, informed consent and trust are impossible. Scores: Proton Drive 9/10, Sync.com 7/10.
Track Record Over Time
The record of privacy incidents, regulatory run-ins, and how a service answers vulnerabilities offers context you cannot ignore. Proton Drive holds the stronger track record here, with a smaller count of incidents and a more responsible response to the problems that did surface. More often than not, what a service did in the past is the best guide to its future privacy conduct. Scores: Proton Drive 10/10, Sync.com 8/10.
Our Bottom-Line Call
When the full analysis is tallied, Proton Drive finishes at 50/60 and Sync.com at 38/60. On privacy grounds, the overall winner is Proton Drive. Both products meet similar functional needs, yet the winner brings a more privacy-respecting approach to the dimensions that carry the most weight. Still, perfection is off the table for any service, so no matter which you choose you should actively set up its privacy options. Our advice is to round out your pick with additional privacy tools, a VPN, DNS-level ad blocker, and privacy-focused browser, to assemble a thorough privacy posture. Should your threat model call for the strongest privacy possible, weigh whether an even more privacy-focused alternative exists in this category beyond the two compared here.