We spent 6 months building a calculator app. Here's what we learned.
6 months ago, I was frustrated.
I switched between 5 calculator apps every single day:
- Loans? One app.
- BMI? Different app.
- Compound interest? Another one.
- Quick conversion? Yet another.
Each had ads, forced signups, clunky UIs.
I decided to build what I wished existed.
Today, CalculatorApp.me is live on ProductHunt.
What started as frustration became 99+ calculators, AI insights, and zero friction.
Here's what I learned building it:
1. People don't want more features—they want simpler tools.
We ditched the bloat.
2. Speed matters more than looks.
Calculate instantly or they leave.
3. Trust is everything.
No ads. No signup. No BS.
Would love to hear:
- What calculator type do you use most?
- What made you switch between apps (like I did)?
- What would make you try a new calculator?
Let's talk in the comments. We're building this with you.
Try it free: https://calculatorapp.me

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