eTool
Your tool for everything!
Only for Mac
Free
Mac
All-in-one utility app with converters and calculators simple to advanced. eTool helps simplify everyday tasks. Your tool for everything.
Simplify Your Life with eTool – The Ultimate All-in-One Utility App
eTool is more than just a calculator app—it’s your complete digital toolbox for converting, calculating, estimating, and planning across countless areas of your daily life. Whether you're a student crunching numbers, a pilot checking calculations mid-flight, a new parent tracking your baby’s development, or simply someone who values smart and efficient tools, eTool is built for you.
With a sleek interface, lightning-fast performance, and no clutter or distractions, eTool gives you all the essential tools in one beautifully designed package. Say goodbye to juggling multiple apps for conversions, formulas, and estimations eTool puts everything in one place.
Comprehensive Converters
Effortlessly convert between hundreds of units. Whether you're traveling, cooking, working on construction, or just curious, get quick results across:
- Length
- Weight / Mass
- Temperature
- Area
- Volume
- Speed
- Pressure
- Time
- Energy
- Data & Storage
- Currency (with real-time exchange rates)
- And many more…
Every converter is intuitive and instant, helping you get answers fast without scrolling through menus.
Aviation & Flight Tools
For pilots, aviation enthusiasts, and students, eTool provides specialized calculators that are practical and flight-ready:
- Crosswind Calculator
- Pressure Altitude
- Density Altitude
- Takeoff & Landing Distance Estimator
- Fuel Burn Calculations
- Time-Speed-Distance Triangles
- Aviation Unit Conversions (e.g., knots to km/h, feet to meters)
Stay sharp and prepared in the cockpit or simulator with tools that work offline, wherever you are.
Medical & Health Utilities
Take charge of your health or assist your patients with professional-grade medical tools:
- BMI & BMR Calculators
- Due Date Estimator
- Gestational Age Tracker
- Corrected Age Calculator (for preemies)
- Trimester Timeline
- Baby Weight & Length Percentile Estimators
- Milk Intake Recommendations
- Solid Food Schedule
- Growth Velocity and Development Milestones
Perfect for parents, midwives, and healthcare professionals alike, these tools offer clarity during critical life stages.
Baby & Parenting Tools
New parents love eTool’s growing suite of baby-focused features:
- Sleep Time Calculator
- Wake Window Estimator
- Teething Timeline
- Vaccine Schedule (based on age)
- Fever Dosage Estimator (based on weight)
- Quickening & Movement Tracker
All tools are research-informed and easy to use—just enter your baby's age or weight to get instant results.
Everyday Calculators
From shopping to finance, travel to dining, eTool helps you handle everyday tasks smoothly:
- Percentage & Discount Calculator
- Tip & Bill Split Calculator
- Loan & Mortgage Estimator
- Age & Date Difference Calculator
- Investment Returns
- Tax and VAT Estimations
- Arithmetic & Scientific Calculator
- Currency Conversions
Why Users Love eTool
- Clean, modern interface
- Works offline for most features
- Regular updates with new tools
- No ads, no bloat—just productivity
- Lightweight and fast
- Designed for both casual and professional users
One App. Infinite Utility.
eTool replaces dozens of apps with one smart, powerful platform. It’s like carrying a calculator, converter, medical journal, and flight computer—all in your pocket.
Stop cluttering your phone with single-purpose apps. Whether you're calculating fuel, estimating a baby's growth, converting units for a recipe, or computing loan interest, eTool is the one app that does it all.
Download eTool now and experience what it means to simplify your digital life.
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
The developer, Softnames, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Softnames
- Size
- 16.5 MB
- Category
- Utilities
- Compatibility
Requires macOS 10.14 or later.
- Mac
Requires macOS 10.14 or later.
- Mac
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © All Rights Reserved (C) Softnames Inc.