OpenedOrNot by 500apps

What it does

OpenedOrNot by 500apps is a free email tracking extension for Gmail to help users track email life-cycle. Receive real-time notifications when recipients read emails, get reminders, check link clicks and analyze daily reports for better campaign management.

After years of building 500apps , we made a hard decision — to stop spreading thin across 50 products and go all-in on one platform that does what all of them were trying to do. If you've been a 500apps customer — thank you. Genuinely. You gave us the signal, the feedback, and the patience that helped us understand what businesses actually need from software today. Here's what we learned: you don't need 50 separate tools. You need one intelligent layer that understands your workflow, adapts to your users, and gets smarter over time. That's what we've been quietly building. 500agents is a conversational AI platform — where the interface adapts to the user, not the other way around. One…from 500apps.com

• 
  Unlimited Email Tracker2019 · snov.io · ▲496

  Track opens and clicks, set reminders and delays in Gmail

• 
  Email Open Tracker for GMAIL2024 · ▲126

  Keep an eye on your email opens

• 
  Mail Track2023 · mailtrack.email · ▲168

  Gmail extension to track when your emails are opened

• 
  Mailtrack.io2014 · mailsuite.com · ▲282

  The best email tracking solution I've found. Free

• 
  Ugly Email2015 · uglyemail.com · ▲421

  See if an email is being tracked before you open it in Gmail

• 
  Mailmeteor2019 · mailmeteor.com · ▲567

  Send hundreds of personalized emails with Gmail.

• 
  WallHop – 12ft.io is gone, so I built a replacement▲287

  wallhop is a free paywall bypass. Paste any article link to read it without paywall popups, ads or clutter. No signup, no extension. A simple 12ft.io alternative.

  Growth · 11d ago · wallhop.io

• 
  Prefer▲201

  The execution layer for AEO

  Growth · 22d ago · tryprefer.com

• 
  MakerMap▲197

  A living map of makers and what they’re building

  Growth · 26d ago · makermap.lol

• IM
  I made a web game called Almost Pong▲1,135

  Hi HN! I made many small web games in the past with Unity or Phaser. But this time I wanted to make something completely on my own. So I coded a basic game framework in plain JavaScript, and used it to make Almost Pong. This was a really fun project that taught me a lot about JavaScript, and I plan to make more minimalist games with this framework. Interesting fact: Almost Pong doesn't load any assets, all sprites and sounds are generated with code. Happy to answer questions, and please let me know if you have any feedback on the game. Thanks!

  Dev tools · 2022 · lessmilk.com

• IM
  I'm writing a free book called Computer Networks from Scratch▲792

  Life & fun · 2022 · networksfromscratch.com

• HA
  HN Avatars in 357 bytes▲701

  Paste the following into the console of any HN page - for annotated avatars on all HN comments. (self contained code) for(u of document.querySelectorAll('.hnuser'))for(u.prepend(c=document.createElement('canvas')),x=c.getContext('2d'),c.width=18,c.height=14,s=u.innerText,r=1,i=28+s.length;i--;i>>29>X*X/3+Y/2&&x.fillRect(6+2*X,2*Y,2,2)&x.fillRect(6-2*X,2*Y,2,2):r+=s.charCodeAt(i-28,x.fillStyle='#'+(r>>8&0xFFFFFF).toString(16)))r^=r>>17,r^=r>2

  Dev tools · 2022

• 
  Tome Beta▲697

  The storytelling tool for work

  Work · 2022 · tome.app

• 
  Kairn▲694

  Regain control over your days

  Dev tools · 2022

• 
  A game that tests how well you know your local area▲654

  How well do you know your area? Test your knowledge by locating streets on a map.

  Work · 2022 · backofyourhand.com