Report updated May 5, 2026

Overview · Full Intel report in progress

Engineers Toolbox is an established reference app that is completely free. With a 4.0/5 rating from 55.7K reviews, it shows polarized user reception.

What is Engineers Toolbox?

Engineers Toolbox is a utility application designed to perform unit conversions for distance, area, volume, pressure, and weight/mass. It allows users to save default units to streamline repetitive calculation workflows. The app is currently maintained by developer Charles Crawford.

Current Momentum

v0.1

- Significant improvement in user interface design - New tool: WhatsApp status download tool - Improvement in interval tool

Competition

Rivals identification in progress

7-Day Rank Pulse 🇺🇸

Reference

No ranking data

ToolsGrossing

Rating Pulse 🇺🇸

What makes this app unique?

What Does It Look Like?

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What Are The Key Features?

Multi-Category ConversionStandard

Provides conversion functions for distance, area, volume, pressure, and weight/mass.

Default Unit PersistenceStandard

Allows users to save preferred units to accelerate the conversion process.

How much does it cost?

Free

Who Built It?

Charles Crawford app icon

Providing a centralized suite of utility tools to streamline daily technical and professional tasks for a global user base.

Portfolio

2

Apps

Free 1
Business100%

What other apps does Charles Crawford make?

Explore the full Charles Crawford report

Portfolio breakdown, audience, momentum, and every app published by Charles Crawford.

Go deeper

Analysis in progress, available soon

What do users think recently?

Analysis in progress, available soon

View the full user-sentiment analysis

Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.

Go deeper

Analysis in progress, available soon

What is the competitive landscape for Engineers Toolbox?

How's The Reference Market?

Market outlook for this category

Available very soon

Strategic analysis coming soon

SWOT, key takeaways & outlook

The outtake for Engineers Toolbox

Key Takeaways

While the app offers functional utility for unit conversions, recent user feedback indicates potential stability issues regarding application launch.

Where Is It Heading?

Trend analysis

Available very soon

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with editorial review, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Engineers Toolbox, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “Engineers Toolbox Intelligence Report.” Updated May 5, 2026. https://marlvel.ai/apps/engineers-toolbox

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