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My First Startup

mvoloskov profile image Miloslav Voloskov ・Updated on ・1 min read

TL;DR: It shows you when to post on Instagram and what hashtags to use to get more views. Here's the Product Hunt page, here's the app itself.

Hello! Today I launch Rhittm – a fully open-source PWA that suggests you the best time to post on Instagram and also allows you to copy the most popular hashtags just one tap away.


I was fed up using other websites and copying hashtags by hand, it's literally painful on a touchscreen. I was bored by calculating timezone offset to get the time when to post.

Also, I value privacy. That's why Rhittm doesn't store anything at all – it has no backend. You don't even need to sign-in to use it.


One day of work with ReactJS. Proudly hosted on Netlify, landing page is on Github Pages.


  • Graph at the top shows Instagram activity. It automatically syncs with your timezone, so the graph is always tuned up just for you.
  • There are a hashtag categories. You can pick as many as you want and Rhittm will generate thirty random hashtags of that categories. Tap them to copy instantly.
  • Cat at the top always looking at you. It uses your accelerometer.

I want this!

Discussion (2)

Editor guide
dlionz profile image
Damien Breaux

Hey! I really love the way this looks! My only feedback is I don't really understand what the graph is telling me. Is it times of day? What is the wave indicating? Anyway looked at your other work and awesome stuff.

mvoloskov profile image
Miloslav Voloskov Author

Oh, thank you!

Graph shows the activity over the day. The higher the wave, the higher the activity.