ConvertX vs Air Share
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ConvertX
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Convert any unit in seconds with ConvertX — a powerful unit converter for engineers, students, professionals, and everyday use. From everyday measurements to advanced engineering conversions. -> 400+ UNITS ACROSS 44 CATEGORIES Quickly convert everyday and technical measurements, including: • Length — meters, kilometers, miles, feet, inches • Weight & Mass — kilograms, grams, pounds, ounces • Temperature — Celsius, Fahrenheit, Kelvin • Area — square meters, square feet, acres • Volume — liters, milliliters, gallons • Speed — km/h, mph, m/s • Time — seconds, minutes, hours, days • Data Storage — bits, bytes, KB, MB, GB • Pressure — Pa, bar, psi, atm • Energy — joules, calories, kWh • Power — watts, kilowatts, horsepower • Angle — degrees, radians • Frequency — Hz, kHz, MHz • Fuel Efficiency • And many more measurement conversions -> CURRENCY CONVERTER Convert between 30+ currencies using live exchange rates. Currency data can be cached for convenient access when an internet connection is unavailable. -> ENGINEERING CONVERSIONS — PRO Convert advanced engineering and scientific measurements with dedicated tools for professional and technical use. Mechanical Engineering: • Force • Torque • Stress • Density • Dynamic & Kinematic Viscosity • Acceleration • Angular Velocity Civil Engineering: • Flow Rate • Stress Intensity • Illuminance • Concentration • Water Hardness Electrical Engineering: • Voltage • Resistance • Capacitance • Inductance • Current Density Thermal & HVAC: • Thermal Conductivity • Heat Flux • Cooling Load • Specific Heat Science: • Radiation Dose • Radioactivity • Molar Amount Material Science: • Hardness — HRC, HV, HB, Shore • Elastic Modulus -> FAST AND EASY TO USE Convert measurements quickly with a clean interface designed for everyday and professional use. • Large, easy-to-read results • Swap units with one tap • Copy results to your clipboard • Save frequently used conversions to Favorites • View your recent conversion history • Fast calculations • Clean dark interface • Unit calculations work offline -> OFFLINE UNIT CONVERTER Convert units without an internet connection. Everyday and engineering calculations work directly on your device, making ConvertX useful at home, at work, in classrooms, laboratories, workshops, engineering sites, and while traveling. -> BUILT FOR ENGINEERS, STUDENTS & EVERYDAY USERS ConvertX is useful for: • Mechanical Engineers • Civil Engineers • Electrical Engineers • HVAC Technicians • Engineering Students • Science Students • Technicians • Construction Professionals • Material Scientists • Chemistry & Physics Students • Teachers • Developers • Travelers • DIY Users -> SIMPLE & PRIVATE No account is required to use ConvertX. Unit calculations work directly on your device, including offline conversions. Convert meters to feet, kilometers to miles, kilograms to pounds, Celsius to Fahrenheit, liters to gallons, psi to bar, watts to horsepower, and hundreds of other units in seconds. Whether you need a quick measurement conversion for everyday use or advanced engineering conversions for professional work, ConvertX brings everyday, scientific, engineering, and currency conversions together in one app. -> CONVERTX PRO Unlock all 29 engineering categories with a one-time purchase. Lifetime access. No subscription. One payment includes all current engineering categories and future engineering categories. Get ConvertX today and keep a powerful unit conversion toolkit at your fingertips. Whether you're an engineer, student, professional, traveler, or simply need a quick conversion, ConvertX makes everyday and technical unit conversions fast, simple, and convenient — even when you're offline.
Air Share
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AIR SHARE — Lightning-Fast, Private File Transfer Share any file — photos, videos, documents, folders — instantly over WiFi with military-grade AES-256 encryption. No internet required. No cloud. No limits. -> INSTANT WIRELESS TRANSFER Send files at full WiFi speed directly between nearby devices. No cables. No account needed. Just open, scan, and share. -> AES-256 ENCRYPTED Every transfer is secured end-to-end. Your files are never stored on external servers — it's purely device-to-device. -> QR CODE PAIRING Connect devices in one tap. Point your camera at the QR code on the receiving device and transfer begins instantly. -> ANY FILE TYPE Photos, videos, music, PDFs, ZIP archives, folders — Air Share handles everything with no compression and no quality loss. -> WORKS WITHOUT INTERNET Using WiFi Direct technology, Air Share transfers files over your local network — even when there's no internet connection. -> BUILT-IN FILE MANAGER Browse, preview, and manage your received files with the built-in viewer supporting photos, videos, PDFs, and documents. PRO FEATURES: • Unlimited file size (free tier: 2GB) • Password-protected transfers • Priority speed mode • 100% ad-free experience Weekly, monthly, and yearly plans available. Cancel anytime Privacy Policy : https://sites.google.com/view/privcytermsconditionsairshare/home Apple Terms of Use : https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: Air Share at every 5 days against ConvertX's every 7 months. ConvertX's advantage is iOS requirement (15.6 vs 26.2). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. ConvertX sells 1 one-off in-app purchase and Air Share sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.
ConvertX ships an update every 7 months, Air Share every 5 days. The most recent releases landed on November 9, 2026 and November 5, 2026 respectively.
| Parameter | ConvertX | Air Share |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 7 months | Every 5 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 26.2 |
| Further details — not scored | ||
| Size | 35 MB | 19 MB |
| Age rating | 17+ | 12+ |
| Developer | Dhaval Panasara | APP TEAM |
In-app purchases
ConvertX
- LifeTime Premium$4.99
Air Share
- Weekly$1.997 Days
- Monthly$5.991 Month
- Yearly$29.991 Year









