convertX - Unit Converter
Engineering & Metric Calculatr
Only for iPhone
Free · In‑App Purchases · Designed for iPhone
iPhone
Engineering categories. Mechanical, Civil, Electrical & Material Science. One-time PRO. No subscription.
ConvertX gives engineers, students, and everyday users the most complete
unit converter in their pocket. 44 categories. 400+ units. Offline.
EVERYDAY — FREE FOREVER
Length · Weight · Temperature · Area · Volume · Speed · Time
Data Storage · Pressure · Energy · Power · Angle · Fuel · Frequency
LIVE CURRENCY
30 currencies updated in real-time. Works offline with cached rates.
No account. No sign-up. Just convert.
ENGINEERING SUITE — PRO
The only converter with a complete professional engineering toolkit:
Mechanical: Force · Torque · Stress · Density · Dynamic Viscosity
Kinematic Viscosity · Acceleration · Angular Velocity
Civil: Flow Rate · Stress Intensity · Illuminance · Concentration
Water Hardness
Electrical: Voltage · Resistance · Capacitance · Inductance
Current Density
Thermal / HVAC: Thermal Conductivity · Heat Flux · Cooling Load
Specific Heat
Science: Radiation Dose · Radioactivity · Molar Amount
Acoustics: Sound Level · Luminous Intensity
Material Science: Hardness (HRC / HV / HB / Shore) · Elastic Modulus
DESIGNED FOR REAL USE
• 48-point bold numbers — your result fills the screen
• Dark neon UI — no eye strain in the field or lab
• Tap any unit row to set it as your conversion target
• Swap units with one tap — no fumbling
• Copy result to clipboard instantly
• Favorites — pin your most-used converters to the top
• History — last 50 conversions saved automatically
• 100% offline — no internet needed for any unit conversion
PRIVACY FIRST
No account. No tracking. No personal data collected.
PRO — $4.99 ONCE, YOURS FOREVER
Unlock all 29 engineering categories with a single one-time purchase.
No subscription. No monthly fee. Lifetime access including all future
engineering categories added to the app.
ConvertX is the converter engineers reach for on-site, students use in
the lab, and travellers rely on for currency — all in one place.
Ratings & Reviews
This app hasn’t received enough ratings or reviews to display an overview.
The developer, Dhaval Panasara, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Dhaval Panasara
- Size
- 33.3 MB
- Category
- Utilities
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- Languages
- English
- Age Rating
16+
- 16+
- In-App Purchases
Yes
- LifeTime Premium $4.99
- Copyright
- © Dhaval Panasara