# InsToolBox

> 7 calculation tools for industrial instrumentation, 100% offline

Canonical page: [https://chrome-stats.com/d/com.rdxb.instoolbox](https://chrome-stats.com/d/com.rdxb.instoolbox)

## Overview

- **ID:** `com.rdxb.instoolbox`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** RDXB
- **Category:** PRODUCTIVITY
- **Downloads:** 13
- **Last updated:** 2026-08-02
- **First published:** 2026-08-02
- **Publisher country:** BR
- **Data as of:** 2026-09-18
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.rdxb.instoolbox)
- **Privacy policy:** [https://sites.google.com/view/politicadepri-instoolbox/in%C3%ADcio?authuser=2](https://sites.google.com/view/politicadepri-instoolbox/in%C3%ADcio?authuser=2)

## Description

InsToolBox brings together in a single app the calculation tools that every instrumentation and industrial electronics technician uses daily — without depending on the internet, without ads, and without collecting any of your data.<br><br>✅ Linear and bilinear interpolation, with illustrative graph<br>✅ Pressure converter (Pa, kPa, MPa, bar, mbar, atm, psi, kgf/cm², mmHg, inHg, kgf/m²)<br>✅ Temperature converter (Kelvin, Celsius, Fahrenheit) with three synchronized fields<br>✅ PT-100 converter (resistance ↔ temperature), Callendar-Van Dusen curve according to IEC 60751<br>✅ Thermocouple converter (types J, K, T, E, N, R, S, B), official NIST ITS-90 tables<br>✅ Number base converter (decimal, binary, octal, hexadecimal), with support for negative numbers<br>✅ Simple, direct and inverse rule of three<br>All results are calculated automatically as you type — without needing to press any calculate buttons. Clean interface, fields with clear visual highlights, and fast navigation via a side menu.<br>100% offline: none of the tools depend on an internet connection, and the app does not collect, store, or send any of your information to any server.<br>Ideal for instrumentation technicians, electricians, engineers, automation students, and any professional who needs fast and reliable technical conversions in the field.

## Rankings

- #2,756,168 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.rdxb.instoolbox)