
Thunderbird
Microsoft Outlook
eM Client
Mailbird
Airmail
Postbox
Geary
Mailspring is a mail client for Mac, Windows and Linux.

NovoPsych
Digital Psychology assessments with research-backed UX for neurodivergent patients. Better completion rates, more comfortable patient experience, instant scoring, trend tracking with secured data hosting.

Which is more popular?
Based on our record, Mailspring seems to be more popular. It has been mentioned 25 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | getmailspring.com | clientforms.app |
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What each product offers, as listed by its team.


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


Overall verdict
Why this product is good
Recommended for
Mailspring is recommended for users who need a centralized hub for managing multiple email accounts. It is particularly well-suited for professionals who benefit from features like read receipts and link tracking, as well as those looking for a highly customizable email experience.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Installation and Configuration Free Email Client Software Mailspring
More videos
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 Mailspring 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 Mailspring 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.


Mailspring offers activity tracking, meaning you get notified as soon as contacts read your email messages, and link tracking, so you can see who’s tracking your links.
Mailspring detects the language you are using and automatically spellchecks in that language.
Mailspring supports multiple accounts, read receipts, translations, undo send, and other popular email client features.
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 love Mailspring, it's modern and open source: https://getmailspring.com/ The UI uses Electron, but the actual sync engine is in C++, so it's pretty fast. - Source: Hacker News / almost 4 years ago
The only app I’m aware of which translates emails is this; https://getmailspring.com. Source: almost 4 years ago
Mailspring is quite nice. It also has a paid version and is actively updated so I think it's likely to stick around for awhile. Source: almost 4 years ago
Tracking ClientForms.app since Dec 2025.
When comparing Mailspring and ClientForms.app, you can also consider the following products.

Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!
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NovoPsych is a tool that is used for outcome monitoring via conducting psychological tests online.
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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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eM Client is a fully-featured email client for Windows and macOS with a clean and easy-to-use interface. eM Client also offers features for calendars, tasks, contacts, notes, and chat.
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Mailbird is the best email client for Windows 7, 8 and 10
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Airmail is a lightweight and lightning fast mail client for Mac.
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