Auto Proximity Detection vs PDF Redactor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Auto Proximity Detection
This utility app allows hands-free control of your iPhone using the proximity sensor. Perform actions like taking photos, recording audio/video, or toggling the flashlight by covering the screen, ideal for when you can't interact directly.
- Hands-free photo taking
- Audio recording
- Video recording
- Flashlight toggle
- Voice-reported location
- Voice-reported time
- Text note dictation
- Number counting
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When we are moving or acting, we cannot tap the button on the screen of iPhone or we have no time to watch the screen of iPhone, but we still could cover the screen of iPhone and we still hope to use the iPhone to do the following jobs (1)take photo (2) record the sound (3)record the video (4)turn on/off the flashlight(5) play the sound (6) report the location by talking (7) report the time by talking (8) talk the text notes.(9) count the number one by one. This App is developed for the situations above. It depends on the Proximity Sensor in iPhone. The proximity Sensor is located at the top part of the screen of iPhone, the left side of front camera. We need to use the following two special actions: 1. Cover+Left: Cover the top part of the iphone's screen and left. 2.Hold: Cover the top part of the iphone's screen, wait for a longer time, at least ten seconds and finally left. We could cover the screen by our hands, our clothes, our arms, our face,our body, or our books. For talking the name of location, the iPhone need to connect the internet Usage: When we tap the cover button, the App will be in the covering status. When we tap the hold button, the App will be in the holding status. In the covering status, if we take photos (default eight photos), record video, record sound, play sound and talk notes, we need to cover and left the top of the screen first, then the job will start, after at least seven seconds, we could cover again to stop the job. In the holding status, if we take photos (default eight photos), record video, record sound, play sound and talk notes, we need to cover the top of the screen first, without leaving, then the job will start, when we want to stop the job, we need to left. Tap the count button, the talking counter will be launched.Just cover the screen, the Talking counter could help us to count the number by talking in English. Tap the menu button at the bottom left corner, the menu will be displayed. This menu includes five items. 1 View Video Clips. 2 Play Sound files. In this view, we could play sound , delete sound files and rename the file. 3 View Photos. Tap this item, we could see the photo list with the small photo preview. When we tap the photo item, this view will close. 4 Select a sound file for playing. Select the sound file for the playing. The sound files includes the file record by the recording reaction or the sound files imported from the iTune file sharing. 5 Talk Notes. Edit and Add the text notes. Solution Examples Solution 1: When we are walking in darkness, turn on or turn off the flash light quickly and frequently. Step 1: Launch this App. Step 2: Select the cover button. Step 3: Select the flash light button Step 4: Start to walk as usual. Step 5: If you decide to turn on the light ,then make the iPhone screen close to your clothes and left.If you decide to turn off the light ,then make the iPhone screen close to your clothes and left again. Solution 2: Make the app talk the current location while we are walking. Step 1: Launch this App. Step 2: Select the cover button. Step 3: Select the location button Step 4: Start to walk as usual. Step 5: If you need to listen the talking of the current location ,then make the iPhone screen close to your clothes and left the screen from your clothes.The app will talk the information about the location. Solution 3: Record the sound while studying in Classroom Step 1: Launch this App. Step 2: Confirm already tap the Record Sound button. Step 3: Select the cover button. Step 4: Put the iPhone on your desk Step 5: If you decide to record the sound, then put your hand on the top left corner of the iPhone screen, then left your hand Step 6: When you want to stop recording, just put your hand again on the top left corner and left.
PDF Redactor
Permanently hide sensitive information in PDF documents by drawing black boxes over text or content. Export a flattened PDF where redactions are irreversible, ensuring privacy before sharing. This utility works offline and focuses on quick, straightforward redaction without complex editing tools.
- Permanently redact sensitive information
- Draw black redaction boxes
- Export flattened, irreversible PDFs
- Works fully offline
- Simple, one-time redaction tool
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PDF Redactor makes it easy to permanently hide sensitive information in PDF documents — privately, right on your iPhone. Whether you're sharing a document, removing personal details, or protecting confidential information, PDF Redactor helps you create a safer copy in just a few taps. REDACT TEXT AND DOCUMENT AREAS Tap to redact specific text or draw black boxes over any part of your PDF. Move, resize, or remove redactions before exporting. FIND SENSITIVE INFORMATION Automatically identify potential sensitive information, such as email addresses, phone numbers, addresses, and dates. Review the suggestions and choose exactly what to redact. OPEN AND SHARE PDFs EASILY Open PDF documents directly from the iPhone Share menu, make your redactions, and share the finished PDF using your favorite apps. PERMANENT REDACTION Export a flattened PDF with redactions baked into the document. The original text beneath covered areas is not preserved as a removable text layer. PRIVATE AND OFFLINE Your documents are processed directly on your device. No accounts, no uploads, and no internet connection required. FEATURES • Tap to redact text • Draw and adjust redaction areas • Find and review sensitive information • Undo, move, resize, and remove redactions • Open PDFs from other apps • Share permanently redacted PDF files • Keep your original PDF unchanged • Work entirely offline PDF Redactor is designed for fast, straightforward PDF redaction — without subscriptions, accounts, or complicated editing tools.
Screenshots
Verdict
The clearest difference is price: Auto Proximity Detection at Free against PDF Redactor's $1.99. Auto Proximity Detection also leads on update cadence (every 2 months vs every 4 months) and iOS requirement (13.0 vs 17.6). On rating, review sentiment, ratings volume and ads 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
Auto Proximity Detection is free to download; PDF Redactor costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 1.0 for Auto Proximity Detection against 1.0 for PDF Redactor. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews split almost evenly too, at 0% and 0% positive.
Auto Proximity Detection ships an update every 2 months, PDF Redactor every 4 months. The most recent releases landed on October 7, 2026 and October 23, 2026 respectively.
| Parameter | Auto Proximity Detection | PDF Redactor |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 1.0 (2 ratings) | 1.0 (1 ratings) |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 2 months — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 4 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | 方 沈 | OpsOh LLC |
Customer experience
Auto Proximity Detection
PDF Redactor
In-app purchases
Auto Proximity Detection
No in-app purchases
PDF Redactor
No in-app purchases
Questions
Is Auto Proximity Detection free?
Is PDF Redactor free?
Which has better reviews, Auto Proximity Detection or PDF Redactor?
Do Auto Proximity Detection or PDF Redactor have ads?
Which is updated more often, Auto Proximity Detection or PDF Redactor?
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