
Mailo
Superhuman
Soverin
Horde
Mailpile
Teknik Mail
ProtonMail
Email at its best, new from Basecamp.
Dead Pixel Buddy
Screen Tester
ScreenTest.run
Black-Screen.cc
Screentest
Turn your screen pure black in one click. Test dead pixels, save OLED battery, clean your monitor, or focus. Free, fullscreen, no download.

Which is more popular?
Based on our record, HEY seems to be more popular. It has been mentioned 24 times since March 2021.
Website, pricing, platforms and company facts side by side.
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Black-Screen.dev
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| Website | hey.com | black-screen.dev |
| Pricing | — | |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of HEY yet.
Black Screen is a free browser-based display utility for opening pure black and other solid colors in fullscreen. It helps users check dead or stuck pixels, inspect backlight bleed and screen uniformity, test OLED displays, reduce unwanted monitor light, clean screens and create distraction-free...
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
No analysis of Black-Screen.dev yet.
Walkthroughs and reviews on video.
Hey Review: Why this $99 per year email is Superhuman's Most Exciting Challenger | Keep Productive
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How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using HEY and Black-Screen.dev. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.

Apple apparently told ProtonMail "out of the blue" that it was required to add an in-app purchase option to stay in the App Store. Similar to the situations with HEY and Wordpress earlier this year, ProtonMail had a...
We have no reviews of Black-Screen.dev yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.

Seven gems to manage background jobs. The team looked at what they were running and said "this can't be right." That became the brief for Solid Queue. Rosa got picked for the project, built it in production at Hey first, iterated on it... - Source: dev.to / 3 months ago
Basecamp: After using clouds from both Amazon and Google extensively over the past 15 years, we finally had enough of the outrageous bills and the ever-increasing complexity. So in 2023, we pulled Basecamp, HEY, and five other heritage... - Source: dev.to / about 1 year ago
Attending the latest edition of Rails World and watching the talk by DHH made me realize that generating views on the backend with Rails was no longer synonymous with slow, ugly interfaces that do not care about UX. With Hotwire, through... - Source: dev.to / about 2 years ago
Tracking Black-Screen.dev since Sep 2026.
When comparing HEY and Black-Screen.dev, you can also consider the following products.

Mailo is an email client where you can send and receive emails to and from anyone with an email address.
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web app tool to detect dead pixels on lcds plasmas tvs
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Each slide will show an image that makes any dead/stuck pixels, discoloration, scratches, and dust...
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Soverin is the honest email service that doesn’t sell your data.
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The easiest way to check your monitor for dead pixels. Fullscreen, dark mode, no ads. Works on PC, Mac, and Mobile.
Compare ScreenTest.run to HEY or Black-Screen.dev: