Best apps like ResToolbox3

📊 Productivity

Whether you want more options like ResToolbox3 or a completely different take on the same concept, our curated list of 10+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.

Top Alternatives to ResToolbox3

石油助手 by Sichuan Jupai Technology Co., Ltd.

Editor's Choice

0.0(0 ratings)

Free

光驭行 by 锐斌洪

Strong Contender

0.0(0 ratings)

Free

Formula Calculator # by 威刘

Complete calculations quickly

Worth Considering

Australian Earthquake Browser

5.0(2 ratings)

FreeAdsIn-App Purchases

Perform calculations with a vast library of built-in formulas or create your own. Save and sync custom formulas to the cloud for easy access across devices. Includes a comprehensive scientific calculator.

More apps like ResToolbox3

Seismoscope

StemFox Scientific Calculator

Engineering Equation Solver

Advanced scientific calculator with 80+ functionsTextbook equation solver for any variableSearchable equation database by chapter

Streamline complex STEM calculations with a powerful calculator, textbook equation solver, and comprehensive unit converter. Designed for engineers, it reduces busywork and improves accuracy for homework and technical tasks.

(10)

freemium

by Guangdong AVCiT Technology Holding Co.,Ltd.

i-CTL

Geocompass for Geologists

Lambert

Geological compass functionalityMeasure dip direction and angleReal-time stereographic projection

This application transforms your iPhone into a specialized geological compass. It accurately measures the dip direction and angle of geological strata, displaying real-time orientation data. Measurements can be enhanced with text and plotted on a map for easy transfer to your computer.

(4)

free

PDF to ePUB - Converter

eBook Reader

Local, on-device conversionPreserves document formattingHigh-quality ePUB 3.0 output

Transform PDF documents into reflowable ePUB ebooks directly on your device. This converter prioritizes privacy by processing all files locally, ensuring your data never leaves your iPhone, iPad, or Mac. Enjoy high-quality ebook output with simple one-tap conversion and seamless sharing.

free with in-app purchases

by REDWAN MO ALHADI KABOUKA

Assadafa

Battery Health Prediction

BatteryManAI

AI-driven battery capacity predictionCritical threshold alerts (80% capacity, 1000 cycles)Personalized battery maintenance tips

This app uses AI and charging logs to predict when your battery's maximum capacity might fall below 80% or reach 1000 cycles. It offers personalized tips to help you maintain battery health and extend your device's lifespan, potentially allowing you to sell your device at a higher price.

(1)

ad-supported