PDF Scanner ⋅ vs Signal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PDF Scanner ⋅
Easily scan, edit, and sign PDF documents directly from your phone. Features include auto-cropping, form filling, highlighting, and printing capabilities. Organize and manage your scanned documents efficiently.
- Document scanning with auto-cropping
- Edit and fill PDF forms
- Markup and highlight PDFs
- Digital signature functionality
- Organize and save scans
- Print PDFs wirelessly
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PDF Scanning App is the simple and easy way to scan & edit pdf documents from your phone. Features include: • Point and shoot PDF document camera scanning • Edit and fill out PDF document forms fields • Markup and highlight PDF documents • Sign PDF documents with your signature • Save and organize your PDF scans • Print PDF scans over Wifi to Printer • Supports AirPrint and other printing protocols • Auto document surface detection and cropping • Simple and easy to use Terms of Use: https://silverelmsys.com/pdfscanner/terms_of_use.html Privacy Policy: https://silverelmsys.com/pdfscanner/privacy_policy.html
Signal
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A warning light comes on, you are already moving, and the manual is not in the glovebox. Point your camera at the symbol. Signal tells you which light it is, how serious it is, and whether it is safe to keep driving. No dongle. No plugging anything into the port. No scrolling a grid of sixty icons hoping one of them matches. WHY THIS IS DIFFERENT Every other dashboard reference makes you look the symbol up by name. That inverts the problem — if you knew what it was called, you would not need the app. Signal turns the camera into the search box. WHAT YOU GET Identify any light from a photo Point, shoot, and get the symbol named in plain English, with what it actually means for your car. A straight answer on whether to drive Every result is coded red, amber or green, the same way your dashboard codes them. Stop the car, service soon, or nothing urgent — plus what to check right now. The full symbol reference, offline Every standard warning light is stored on your phone. It works on a hard shoulder with no reception, and it is free with no limit. Common causes, ranked The handful of things that usually cause this light, so you can check the cheap one first. A loose fuel cap costs nothing to rule out. A garage that remembers Every scan is filed against the car it came from, with the date, so you can see whether that light has been back. FREE AND PREMIUM Free gives you the complete offline symbol reference with no limit, two camera identifications, full severity verdicts, and one vehicle. Signal Premium adds unlimited identifications, typical repair cost ranges so nobody quotes you blind, and every car you look after in one place. BEFORE YOU RELY ON IT Signal explains what your dashboard is showing you. It is information, not an inspection, and it cannot see anything the lamp is not telling it. If the car feels wrong — noises, smells, smoke, or a change in how it drives — stop and get it looked at, whatever the app says. Terms of Use: https://killex00.github.io/tos2 Privacy Policy: https://killex00.github.io/privacy-policy2
Screenshots
Verdict
The clearest difference is device support: PDF Scanner ⋅ at 3 against Signal's 1. PDF Scanner ⋅ also leads on iOS requirement (14.1 vs 18.0). On price, ads and in-app purchases 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. PDF Scanner ⋅ sells 1 one-off in-app purchase and Signal sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | PDF Scanner ⋅ | Signal |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (10 ratings) — better | — |
| Number of ratings | 10 — better | — |
| Update frequency | Fortnightly | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 14.1 — better | 18.0 |
| Further details — not scored | ||
| Size | 12 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Silver Elm Systems LLC | Marek Sokol |
In-app purchases
PDF Scanner ⋅
- PDF Scanner Premium$29.99
Signal
- Signal Premium Monthly3 Days trial$4.991 Month
- Signal Premium Yearly3 Days trial$29.991 Year
Questions
Is PDF Scanner ⋅ free?
Is Signal free?
Do PDF Scanner ⋅ or Signal have ads?
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