CtrlF Pro vs TrueDetect Device Test
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
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
TrueDetect Device Test
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TrueDetect Device Test checks the hardware of an iPhone and reports exactly what it measured. Tap Full Test and the app works through the device one function at a time: display and touch, front and rear cameras, speaker and microphone, vibration, buttons, Wi-Fi, Bluetooth, NFC, GPS, the motion sensors, the compass, the proximity sensor, charging, and the battery. Each check ends in a clear result you can read at a glance, and every card can be opened to see the underlying measurement behind it. Two things guide the whole app: REAL READINGS, NEVER GUESSES A value is shown only when the device itself reports it. Where iOS does not expose something, the app says so instead of filling the gap with an estimate. A result you cannot trust is worse than no result. A FINDING, NOT JUST A VERDICT When a check does not pass, the app states what it found - which part, and what was measured - so the reason is on the screen rather than left to memory. Any test can also be run on its own from Manual Test, which is useful when you want to re-check a single function after handling the device. The app is made by K-Device Lab for businesses that inspect used iPhones and need an honest, repeatable record of a handset's condition. It is free, contains no advertising, and offers nothing to purchase.
Screenshots
Verdict
The clearest difference is in-app purchases: TrueDetect Device Test at none against CtrlF Pro's 1. TrueDetect Device Test also leads on update cadence (weekly vs every 6 weeks) and iOS requirement (15.0 vs 17). On price, ads and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. CtrlF Pro sells 1 one-off in-app purchase. TrueDetect Device Test asks for nothing beyond the download.
CtrlF Pro ships an update every 6 weeks, TrueDetect Device Test weekly. Both last shipped on November 13, 2026.
| Parameter | CtrlF Pro | TrueDetect Device Test |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 weeks | Weekly โ better |
| Ads | No | No |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17 | 15.0 โ better |
| Further details โ not scored | ||
| Size | 3 MB | 3 MB |
| Age rating | 9+ | 4+ |
| Developer | ่ดบ ๅจ | AMIR AKBAR |
In-app purchases
CtrlF Pro
- CtrlF Pro$4.99
TrueDetect Device Test
No in-app purchases
Questions
Is CtrlF Pro free?
Is TrueDetect Device Test free?
Do CtrlF Pro or TrueDetect Device Test have ads?
Which is updated more often, CtrlF Pro or TrueDetect Device Test?
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