UnitMaster vs CtrlF Pro
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
UnitMaster
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UnitMaster β Converter Tool is the easiest way to convert units across a wide range of categories β from everyday measurements to specialized technical units. Whether youβre a student, engineer, traveler, or just curious, UnitMaster gives you accurate results, fast and with a clean, intuitive interface. KEY FEATURES ALL-IN-ONE CONVERTER β’ Length, Weight, Temperature, Volume, Area, Time, Speed, Energy β’ 8+ categories with 100+ built-in units β’ Support for custom unit creation β’ Real-time conversion as you type SMART FAVORITES & HISTORY β’ Save frequently used conversions for instant access β’ Automatic conversion history tracking β’ Quick access to recent calculations β’ Never lose your important conversions again ADVANCED UNIT CALCULATOR β’ Chain multiple conversions together β’ Save complex calculation sequences β’ Built-in calculator for multi-step conversions β’ Perfect for engineering, cooking, and academic use BEAUTIFUL & INTUITIVE DESIGN β’ Modern, clean interface with smooth animations β’ Dark mode support for comfortable nighttime use β’ Optimized for both iPhone and iPad β’ Haptic feedback for satisfying interactions CUSTOM UNITS β’ Create your own custom units β’ Perfect for specialized needs and hobbies β’ Easy setup with base unit reference β’ Organize by category for quick access UNIVERSAL APP β’ Full iPad support with sidebar navigation β’ iPhone-optimized with tab bar interface β’ Works offline - no internet required β’ Lightweight and fast performance PERFECT FOR: Students & Educators - Academic calculations and homework Cooks & Bakers - Recipe conversions and measurements Engineers & Architects - Professional unit calculations Travelers - Currency-free unit conversions abroad Fitness Enthusiasts - Distance, weight, and energy conversions Professionals - Business and technical calculations CATEGORIES INCLUDED: β’ Length (meters, feet, inches, miles, kilometers) β’ Weight (grams, pounds, ounces, kilograms) β’ Temperature (Celsius, Fahrenheit, Kelvin) β’ Volume (liters, gallons, cups, milliliters) β’ Area (square meters, square feet, acres) β’ Time (seconds, minutes, hours, days) β’ Speed (km/h, mph, m/s, knots) β’ Energy (joules, calories, watt-hours) WHY CHOOSE CONVERTLY? 100% Free - No hidden costs or subscriptions Privacy First - No data collection, everything stays on your device Regular Updates - New features and units added frequently User-Friendly - Designed for everyone from beginners to experts Download Convertly today and experience the simplest, most powerful unit converter on the App Store. Say goodbye to confusing conversion websites and hello to instant, accurate results right at your fingertips!
CtrlF Pro
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CtrlF brings the power of Ctrl+F to the real world. Point your iPhone at any book, document, or printed material, type the word or phrase you are looking for, and watch matches highlight on screen in real time. No more scanning page after page for that one quote or keyword. CtrlF uses advanced on-device OCR to recognize text and highlight every match instantly - with pixel-perfect precision around the exact characters you searched for. LIVE CAMERA SCANNER Point your camera at any printed text and type to search. Matches appear instantly with bright highlights so you can spot what you need at a glance. Works in real time - no photo required. The camera preview displays in the correct portrait orientation, and highlights follow the text precisely even as you move. PRECISE CHARACTER-LEVEL HIGHLIGHTING Unlike other apps that highlight entire lines, CtrlF pinpoints the exact characters you searched for. Search for "quantum" in a line that says "quantum mechanics" and only "quantum" gets highlighted - not the whole line. Multiple matches on the same line? Each one gets its own precise highlight. FAR-DISTANCE RECOGNITION Enhanced text detection recognizes words even from across the room. No need to hold your phone right up to the page - as long as the text is clearly visible on screen, CtrlF can find it. PHOTO LIBRARY SEARCH Already have a photo of the page? Import images from your photo library and search for text in them. Select any photo and find words instantly with the same precise highlighting. MULTI-WORD PHRASE MATCHING Search for exact phrases, not just single words. Find "quantum mechanics" or "United States" as complete phrases across any page. INSTANT MODE SWITCHING Switch seamlessly between Live Camera and Photo Library. Tap the mode you need and start searching right away - no loading, no waiting. 25+ OCR LANGUAGES Supports text recognition in over 25 languages including English, Spanish, French, German, Chinese, Japanese, and Korean. 100% ON-DEVICE AND PRIVATE All text recognition happens on your device. No internet required. No data sent to servers. Your privacy is fully protected. FLASHLIGHT SUPPORT Working in a dim library or cafe? Toggle the built-in flashlight to illuminate the page without leaving the app. SEARCH HISTORY Quickly revisit your recent searches. Your search history is stored locally and always just one tap away. FREE TO START - Live camera search: 5 searches per day - Photo library search: 5 searches per day - No sign-up required. Download and start searching immediately PRO UPGRADE - ONE-TIME $4.99 - Unlimited searches - search as many times as you want - Search history - quickly revisit past searches - Screenshot capture - save what you found - Custom highlight colors - personalize your experience - Audio feedback - hear when matches are found - Auto flashlight - automatically illuminates in low light WHO IS IT FOR Students scanning textbooks for key terms and definitions. Researchers locating specific passages in reference books. Readers finding quotes to share or revisit. Professionals searching through printed reports and documents. Anyone who has ever wished they could Ctrl+F in real life. HOW IT WORKS 1. Open CtrlF and choose Live Camera or Photo Library 2. Point your camera at any printed text, or import a photo 3. Type the word or phrase you want to find 4. See every match highlighted precisely on screen in real time 5. Tap to capture, save, or continue searching Download CtrlF today and never lose track of a word again. SUBSCRIPTION INFORMATION: - Payment will be charged to your Apple ID account at confirmation of purchase. - This is a one-time purchase, not a subscription. You pay once and own Pro forever. - You can restore your purchase on any device linked to your Apple ID. - For support, visit https://asunnyboy861.github.io/CtrlF/support.html
Screenshots
Verdict
The clearest difference is price: CtrlF Pro at Free against UnitMaster's $0.99. CtrlF Pro also leads on update cadence (every 6 weeks vs every 5 months). UnitMaster's advantage is in-app purchases (none vs 1) and iOS requirement (15.0 vs 17). On ads and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
CtrlF Pro is free to download; UnitMaster costs $0.99 up front. CtrlF Pro sells 1 one-off in-app purchase. UnitMaster asks for nothing beyond the download.
UnitMaster ships an update every 5 months, CtrlF Pro every 6 weeks. The most recent releases landed on October 17, 2026 and October 5, 2026 respectively.
| Parameter | UnitMaster | CtrlF Pro |
|---|---|---|
| Price | $0.99 | Free β better |
| Update frequency | Every 5 months | Every 6 weeks β better |
| Ads | No | No |
| In-app purchases | No β better | Yes |
| Devices | iPhone, iPad, iPod β better | iPhone, iPad |
| Requires iOS | 15.0 β better | 17 |
| Further details β not scored | ||
| Size | 4 MB | 3 MB |
| Age rating | 4+ | 9+ |
| Developer | Harshad Jadav | θ΄Ί ε¨ |
In-app purchases
UnitMaster
No in-app purchases
CtrlF Pro
- CtrlF Pro$4.99









