
Sumatra PDF
Okular
Atril
Pdf+
PDF Reader Pro
ApowerPDF
PDF Expert
Evince is a document viewer for multiple document formats: PDF, Postscript, djvu, tiff, dvi, XPS...

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?
Website, pricing, platforms and company facts side by side.
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| Website | wiki.gnome.org | clientforms.app |
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In their own words, as submitted to SaaSHub.


No description of Evince 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
Evince is recommended for GNOME users, Linux users seeking a simple and intuitive document viewer, and anyone who needs to open and view multiple types of document formats without requiring advanced editing or annotation features.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Evince Learning - Draw with JAZZA review
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Evince 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.
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External articles and on-site reviews we used to compare the two products.


Evince is a free and open source (FOSS) document viewer that is available on Windows, Linux and Unix-like operating systems. It is included as the default PDF viewer in Fedora, Debian and Ubuntu. The program was...
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NovoPsych is a tool that is used for outcome monitoring via conducting psychological tests online.
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Okular is a universal document viewer based developed by KDE.
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Atril is a simple multi-page document viewer. Atril is a fork of Evince.
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Pdf+ is a reader for PDF documents, which are also known as Adobe Acrobat files.
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PDF Reader Pro is an all-in-one PDF office supporting to Read, Annotate, Edit, OCR, Convert, Create & Fill Form, Sign PDFs, TTS on Mac, iOS, Android, and Windows.
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