
ProtonMail
Gmail
FastMail
Microsoft Outlook
Zoho Mail
Posteo
Yahoo Mail
Get your encrypted mailbox for free.

NovoPsych
Clinical assessment tools for psychologists, therapists and occupational therapists. Send measures by secure link and review scored results, severity bands and reports.

Which is more popular?
Based on our record, Tutanota seems to be more popular. It has been mentioned 183 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | tuta.com | clientforms.app |
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In their own words, as submitted to SaaSHub.


Tuta Mail is the secure email provider with automatic encryption built in. It focuses on security, privacy and open source. Tuta Mail is known as the best ProtonMail alternative as it is the largest encrypted email service in the European Union. German data protection laws which are even better...
Clinical assessment tools for psychologists, therapists and occupational therapists. Send measures such as the PHQ-9, GAD-7 and DASS-21 by secure link and get scored results, severity bands and reports ready to review. The catalogue also includes DSM-5 ADHD assessments and autism screening tools....
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Tutanota is recommended for individuals and organizations looking for a secure and privacy-focused email service. It's particularly suitable for those concerned about data privacy and surveillance.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Tutanota Review - Good as They Say?
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Tutanota and ClientForms.app.
ClientForms.app's answer:
Frontend: Next.js 15 (React 19), Tailwind CSS Backend: Supabase (PostgreSQL, Row-Level Security) Authentication: Clerk Payments: Stripe Hosting: Vercel (Sydney region) Database hosting: Supabase (Australian data residency)
ClientForms.app's answer:
Psychologists who assess ADHD and autism. Typically private practice, solo or small group (1-5 clinicians), currently using paper forms and spending hours on admin per assessment. They want something that works and is secure.
ClientForms.app's answer:
Neurodivergent-first design. Most digital forms just replicate paper online. ClientForms is built specifically for ADHD and autism patients - progress bars with time remaining (helps with time blindness), softer colours instead of harsh white, sticky headers so you always know where you are. The forms are designed to reduce anxiety and improve completion rates.
ClientForms.app's answer:
Most clinical software treats patients as an afterthought. ClientForms is designed specifically for neurodivergent users who are filling out the forms, progress indicators, time estimates, calmer colours, predictable layouts. One link, no signup required, works on any device. Patients just open and complete.
Share your experience with using Tutanota and ClientForms.app. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Tuta comes with automatic end-to-end encryption with post-quantum safe cryptography, two-factor authentication, and zero-knowledge architecture, so your data is never stored in plain text on its servers. You get this...
They and their servers are based in Germany where they’ve put a focus on sustainability. Their offices and servers are powered by 100% renewable energy so you can remain secure and help out the planet. Tutanota offers...
Overall, Tuta Mail is very similar to ProtonMail in what it offers. Like ProtonMail, Tuta Mail offers a completely ad-free experience with a set of standard email management features, some email organization options,...
We have no reviews of ClientForms.app yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


According to the article, Andy Yen was afraid of their competitor Tuta (https://tuta.com/). Maybe that's a good place to start. - Source: Hacker News / 14 days ago
Hey, Tuta Team here. If you're looking for one with unlimited addresses for a custom domain, check out Tuta Mail: https://tuta.com. - Source: Hacker News / 10 months ago
I came across https://tuta.com/ which looks interesting. - Source: Hacker News / over 1 year ago
Tracking ClientForms.app since Dec 2025.
When comparing Tutanota and ClientForms.app, you can also consider the following products.

Secure email with absolutely no compromises. Get your free encrypted email account today.
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NovoPsych is a tool that is used for outcome monitoring via conducting psychological tests online.
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Gmail is available across all your devices Android, iOS, and desktop devices. Sort, collaborate or call a friend without leaving your inbox.
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Email, calendars, and contacts to highest standards of security, privacy and reliability.
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Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
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Zoho Mail is a secure, encrypted, and enterprise-ready email solution, a suite of apps tailor-made for your organization's needs.
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