Tresorit: Quality experiences
Reviewers report that Tresorit’s quality is a mixed but generally improving experience, with a clear majority expressing positive sentiment. Of the 85 mentions, 59 are positive and 24 are negative, indicating a strong overall trend toward satisfaction. Early 2025 saw consistent 4- and 5-star ratings, reflecting solid performance and reliability. However, a sharp drop in quality perception occurred in July 2026, when the average rating fell to 2.33 stars based on three reviews, signaling a notable decline in user experience. This downturn appears to be linked to recurring technical issues, particularly around syncing, uploads, and login stability. Despite this recent dip, many users still praise Tresorit’s security, interface, and customer support, suggesting that core strengths remain intact even as newer problems emerge.
What customers praise
Users consistently highlight Tresorit’s strong security features, especially its zero-knowledge encryption and independent audit verification, which build trust in the platform’s data protection claims. Many appreciate the app’s stable syncing, intuitive interface, and reliable performance for file storage and retrieval. Positive feedback also emphasizes excellent customer service and the app’s ability to restore data after device resets, such as recovering photos after a phone wipe. These strengths are frequently cited as reasons for continued use and high satisfaction.
What customers said:
- „Stable, and usable.“
- „the platform is stable and syncing behaves consistently and predictably, which was a…“
„the platform is stable and syncing behaves consistently and predictably, which was a constant struggle for us previously.“
- „It was reliable and did exactly what I needed at the time.“
Common complaints
Several users report persistent syncing failures, particularly on Mac devices, where files do not stay in sync or fail to upload. Problems with uploading large or multiple files (1GB+) are common, often resulting in interrupted transfers or app crashes. Some users also describe frequent login issues, including being unable to access accounts and receiving persistent 'Connection Error' banners. These technical problems are seen as disruptive, especially when they affect access to sensitive or important files.
What customers said:
- „Saving files for "offline access" within Tresorit, or trying to download to local…“
„Saving files for "offline access" within Tresorit, or trying to download to local storage, always fails“
- „Uploads of bigger or multiple files (1gb+) keep breaking off“
- „Tresorit give little in the way of information or alerts about files that fail to…“
„Tresorit give little in the way of information or alerts about files that fail to upload or sync“
How it has changed over time
Tresorit’s quality perception has fluctuated significantly over the past year. From late 2025 through mid-2026, ratings remained consistently high, with multiple 5-star reviews praising reliability and security. However, in July 2026, the average rating dropped sharply to 2.33 stars, indicating a sudden deterioration in user experience. This decline coincides with reports of syncing failures, upload issues, and login problems, suggesting a recent regression in performance. The drop in ratings may reflect either a new software update or a broader infrastructure issue that has not yet been resolved.
What customers said:
- „the app shuts down when I swipe up in order to get to a different app“
- „Tresorit is slow, both for up- and download“
- „This app consisantly displays a red banner at the top of the app stating: "Connection…“
„This app consisantly displays a red banner at the top of the app stating: "Connection Error".“
Practical takeaways
For users prioritizing security and privacy, Tresorit remains a strong choice, especially for those who value end-to-end encryption and verified security practices. However, those relying on consistent syncing across devices, particularly Macs, or handling large files should be cautious, given the reported instability. The recent drop in ratings suggests potential risks in current performance, so users may want to monitor updates and consider testing the service with non-critical data before full adoption. Customer support is consistently praised, which can be a valuable asset when issues arise.
What customers said:
- „Very good and reliable cloud service.“
Over time
Data as table
| Month | Avg. rating | Count |
|---|---|---|
| 2025-08 | 4.00 | 3 |
| 2025-09 | 5.00 | 2 |
| 2025-10 | 4.33 | 3 |
| 2025-11 | 4.00 | 7 |
| 2025-12 | 5.00 | 1 |
| 2026-01 | 5.00 | 3 |
| 2026-02 | 4.40 | 5 |
| 2026-03 | 4.22 | 9 |
| 2026-04 | 4.00 | 4 |
| 2026-05 | 5.00 | 2 |
| 2026-06 | 5.00 | 4 |
| 2026-07 | 2.33 | 3 |
Sentiment over time
Data as table
| Month | Positive | Neutral | Negative | Count |
|---|---|---|---|---|
| 2025-08 | 67% | 0% | 33% | 3 |
| 2025-09 | 100% | 0% | 0% | 2 |
| 2025-10 | 100% | 0% | 0% | 3 |
| 2025-11 | 71% | 0% | 29% | 7 |
| 2025-12 | 100% | 0% | 0% | 1 |
| 2026-01 | 100% | 0% | 0% | 3 |
| 2026-02 | 80% | 0% | 20% | 5 |
| 2026-03 | 67% | 11% | 22% | 9 |
| 2026-04 | 75% | 0% | 25% | 4 |
| 2026-05 | 100% | 0% | 0% | 2 |
| 2026-06 | 100% | 0% | 0% | 4 |
| 2026-07 | 33% | 0% | 67% | 3 |
Customer voices
Short excerpts - full reviews are available at the original source.
„Secure place to store everything“
„the difference has been night and day“
„Really great app with lots of features“
„Tresorit offers a flawless premium service with a modern, intuitive interface.“
„Their zero-knowledge encryption is top-tier, and what I respect most is that their security is verified by independent audits—not just empty promises.“
„Excellent safe private cloud“
„Tresorit has always been a solid product when it came to E2E file storage.“
„Tresorit clearly prioritizes security architecture, reliability, and professional-grade workflows.“