
SimpleLogin
10 Minute Mail
Firefox Relay
AnonAddy
TempMailAddress
Mailinator
TempMail
Simple free disposable email address service, unlimited free disposable email addresses.

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, 33Mail seems to be more popular. It has been mentioned 16 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | 33mail.com | clientforms.app |
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In their own words, as submitted to SaaSHub.


No description of 33Mail yet.
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
33Mail is recommended for individuals concerned about privacy and spam protection, users who frequently sign up for online services, and anyone who wants to manage and control the number of marketing emails and unwanted messages they receive.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
David's Tech Intros: A Brief Overview of... 33mail, my new favorite email tool
No ClientForms.app videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing 33Mail 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 33Mail 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.


33Mail offers disposable email addresses, but also a bit more. You have to register to use it, but in return the site allows you to monitor inboxes for much longer and even forward email to your real email address, or...
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.


I’ve been a happy customer of https://33mail.com/ for years. It’s a different style of offering with a similar purpose and apparently a sustainable business model. - Source: Hacker News / over 3 years ago
Https://33mail.com may be what you're looking for, custom domains need premium subscription. Source: almost 4 years ago
If you are interested in the "unlimited unique private email addresses" functionality, also take a look at these other services: https://33mail.com/ https://anonaddy.com/ https://burnermail.io/ https://relay.firefox.com/... - Source: Hacker News / about 4 years ago
Tracking ClientForms.app since Dec 2025.
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