Apps by Siu Yuen Ho
Resistor Tools app icon

Utilities

Resistor Tools

Siu Yuen Ho

Free download 5.00 · 1 storefront · 10 ratings In-app purchases unconfirmed
Open on Apple

About this app

This app is a collection of resistor calculators. It is suitable for hobbyist or electronic engineer. * Calculate resistance of two resistors in series or parallel * Find out combinations of two resistors in series/parallel making a desired resistance * Calculate ratio of R1/R2 and voltage divider * Find out resistor values of making voltage divider ratio * Find out resistor values of making inverting amplifier gain * Save combination values in CSV file

Latest release

What’s New

Version 2.6.30 Mar 26, 2024

Fix minor bugs

Audience growth

Ratings growth

Steady
7-day gain +0
Ratings / day 0.0
30-day gain +0
US rating-count history
10 ratings
10 Oct 12, 2026 · 10 ratings Oct 12, 2026

Baseline captured. Growth appears after the crawler observes a changed rating count.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

Price tracking

Price intelligence

1 captured event
Current Free
Historical low Free
Paid → free 0×
Price history
Current Free
Free Oct 12, 2026 · Free Oct 12, 2026

First snapshot captured. The trend line starts after the next crawler price observation.

  1. First observed Oct 12, 2026 · 8:40 PM Free

Screenshots

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