U.S. App Store

Timer 555 Calculator Pro App Reviews

The Timer 555 Calculator Pro app recently received 3 positive reviews on iPhone, iPad, and Android devices. Users in the United States have given Timer 555 Calculator Pro app an average rating of 4.67 out of 5 stars, based on a total of 3 ratings since its release on Mar 24 by Siu Yuen Ho. Can you share your positive or negative thoughts about Timer 555 Calculator Pro?

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Ratings and Reviews

Rated 5.00 out of 5

3 global ratings

5 Star

100%

4 Star

3 Star

2 Star

Explore global reviews of the Timer 555 Calculator Pro app: Spain.

3 Positive User Reviews for Timer 555 Calculator Pro

Great app!!

I made an astable NE555 timer/square wave generator according to app instructions (using 2% components). The result was spot on. Nice.

Jan 13, 2026 W. Version: 1.00 Reply

Excellent Tool

This is an excellent tool for calculating the best values for a 555 circuit.

Jan 13, 2026 P. Version: 2.30 Reply

Nice App

Overall a nice app to have.

Jan 13, 2026 G. Version: 2.40 Reply