How is the durability of Tuta?
Some people swear by Tuta, others are frustrated. Across reviews, there are exactly 20 positive mentions and 20 negative ones, a near tie that’s hard to ignore. But look closer: the mood has been slipping lately, especially from late 2025 into mid-2026. That’s when the star ratings started dropping, with multiple 1-star and 2-star reviews piling up. Complaints keep echoing the same concerns: technical glitches that won’t go away, emails vanishing without a trace, calendar events disappearing, and the app just plain crashing when you’re offline. A few users say it worked fine at first, clean, responsive, dependable, until a recent update introduced chaos. Since then, things have been breaking consistently. Still, there’s a quiet, reliable core of users who’ve stuck with Tuta for years. They don’t complain. No major issues. No crashes. No lost data. For them, it’s still solid. But the recent shift in feedback, those lower ratings, those mounting gripes, hints at something deeper. It’s not just about bugs. It’s about trust in how well Tuta holds up over time.
What customers praise
Many users point to Tuta’s steady performance over the years, particularly as for keeping their data private and secure. Several have used the app for two to five years without running into any technical problems, describing it as both reliable and trustworthy. The app’s dedication to end-to-end encryption and its zero-knowledge design consistently come up as major reasons for confidence. A few users even mention how Tuta has stayed functional and stable, while other platforms have fallen apart under pressure.
What customers said:
- „I have had zero technical issues to date with maybe 2 years of use.“
- „I have been using the free version of Tuta, formerly Tutanota, for at least 5 years now…“
„I have been using the free version of Tuta, formerly Tutanota, for at least 5 years now without any issues!“
Original„J’utilise maintenant la version gratuite de tuta, anciennement tutanita depuis 5 ans au moins, sans aucun problème!“
- „secure and perfect for long-term use“
Common complaints
People keep running into the same problems: the app crashes for no reason, important data disappears, and features stop working altogether. Several users say appointments just vanish without a warning, email threads get wiped after updates, and the app won’t run offline, even though it’s supposed to. Some describe hitting a wall where the app completely locks up and there’s no way back. There’s also a persistent glitch where it wrongly marks users as offline, even when they’re connected, throwing off everything that depends on real-time status.
What customers said:
- „it inexplicably stopped showing new emails.“
- „Worked great until it started having issues saying ‘not online’“
- „I keep reporting the same kind of emails as spam, but they just keep coming.“
How it has changed over time
Durability issues have been growing more noticeable, especially after late 2025. By December 2025 and January 2026, ratings had plummeted to 1-star. Users reported that the app ran smoothly at first, but problems started cropping up after each update. The drop in satisfaction didn’t slow down through the first half of 2026, reviews kept piling in, with many giving 1-star or 2-star ratings, citing app crashes and lost data. Still, a small number of 5-star reviews appeared in early 2026 and into 2027, which hints that some users are still getting solid performance out of it.
What customers said:
- „trying to find help for the app is impossible.“
- „The user interface looks like trash, still.“
- „They have honored the original price of 24 EUROS every year since“
Practical takeaways
For users who value privacy and stability over time, Tuta still holds up well, particularly if you stick to older versions and skip the latest updates. But if you depend on reliable performance, especially when working offline or need to keep your data intact, proceed with care. The app’s reliability seems to vary widely depending on how you’ve set it up and how recently you’ve updated. If you’ve been using Tuta for years without a hitch, you might keep getting by just fine. Still, anyone joining now should know there are known problems in the newer releases.
What customers said:
- „I've been using it for a long time and I'm not switching.“
„I've been using it for a long time and I'm not switching.“
Original„Olen käyttänyt jo pidemmän aikaa enkä ole vaihtamassa pois“
- „ive been using tuta for a couple of months and its been great, no issues“
Over time
Data as table
| Month | Avg. rating | Count |
|---|---|---|
| 2025-09 | 4.00 | 2 |
| 2025-10 | 5.00 | 1 |
| 2025-11 | 2.00 | 1 |
| 2025-12 | 1.00 | 1 |
| 2026-01 | 1.00 | 1 |
| 2026-02 | 3.60 | 5 |
| 2026-03 | 2.00 | 1 |
| 2026-04 | 1.00 | 1 |
| 2026-05 | 2.50 | 2 |
| 2026-07 | 3.00 | 3 |
| 2026-08 | 3.00 | 1 |
| 2026-09 | 5.00 | 1 |
Sentiment over time
Data as table
| Month | Positive | Neutral | Negative | Count |
|---|---|---|---|---|
| 2025-09 | 0% | 50% | 50% | 2 |
| 2025-10 | 100% | 0% | 0% | 1 |
| 2025-11 | 0% | 0% | 100% | 1 |
| 2025-12 | 0% | 0% | 100% | 1 |
| 2026-01 | 0% | 0% | 100% | 1 |
| 2026-02 | 40% | 0% | 60% | 5 |
| 2026-03 | 0% | 0% | 100% | 1 |
| 2026-04 | 0% | 0% | 100% | 1 |
| 2026-05 | 50% | 0% | 50% | 2 |
| 2026-07 | 0% | 0% | 100% | 3 |
| 2026-08 | 0% | 0% | 100% | 1 |
| 2026-09 | 100% | 0% | 0% | 1 |
Customer voices
Short excerpts - full reviews are available at the original source.
„you can't do anything while offline“
„this app constantly and consistently deletes my appointments“
„any reminders a week in advance“
„nothing seems to resolve this so it must be integral“
„the number of missing features mentioned in other reviews“
„without any change of recovery“
„The only flaw I find is that you cannot create events when you are offline.“
„They should implement the option to create the event and upload it when you regain connection.“
Cite this page
Citatio (2026). Tuta Durability: customer reviews September 2026. Retrieved 10 September 2026 from https://citatio.ai/tuta-reviews/durability/
Data verifiable via our public audit log: Methodology · Transparency