PDF Scanner vs Echo
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
PDF Scanner
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Turn your photos into clean, professional PDFs in seconds. Smart PDF Scanner is a fast, minimal, and powerful document scanner designed to make scanning effortless. Capture documents, enhance them instantly, and convert them into high-quality PDFs โ all in just a few taps. Perfect for scanning receipts, notes, contracts, invoices, and more. --- KEY FEATURES โข Scan documents instantly using your camera โข Automatically enhance and clean your scans โข Create multi-page PDFs โข Export and share PDFs โข Extract text from documents (OCR) โข Convert scans into editable text --- FAST & EASY TO USE No complicated tools. Just point, scan, and get a clean result instantly. Designed for speed and simplicity. --- SMART OCR (TEXT RECOGNITION) Easily extract text from your scanned documents. Copy, edit, or export text in seconds. --- FREE & PREMIUM Free Version Enjoy essential scanning features with up to 3 lifetime scans and basic PDF export. Free Trial Start a 3-day free trial and unlock all Premium features with no limitations. Premium โข Unlimited scans โข Advanced OCR (Text Recognition) โข Export text from scanned documents โข Ad-free experience --- PRIVACY FIRST All processing happens entirely on your device. Your documents are never uploaded to or stored on external servers. --- Download now and start scanning in seconds. Privacy policy: https://sites.google.com/view/scannerapp-pp Terms of service: https://sites.google.com/view/scannerapp-tos
Echo
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Unlock the full potential of artificial intelligence with the ultimate AI Prompt Library. Whether you are a designer, digital marketer, developer, or writer, this app provides an expertly curated gallery of high-performing prompts to deliver flawless results every single time. Key Features: Infinite Artistic Styles: Explore stunning visuals, from whimsical 3D papercraft and vector illustrations to ultra-realistic commercial brand concepts. Commercial & Branding Ready: Instantly access professional prompts tailored for high-end product ads, logos, and cohesive brand designs. Beyond Images: A fully categorized ecosystem including optimized prompts for writing, smart coding assistants, and daily productivity workflows. One-Tap Seamless Copy: No more manual typing. Copy complex prompt strings, aspect ratios, styles, and exact parameter configurations with a single tap. Clean Minimalist Design: Navigating your creative workflow has never been easier with our intuitive, fast, dark-mode layout. Stop guessing parameters. Start creating. Download now and elevate your AI generations today! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is ads: Echo at none against PDF Scanner's shown. Echo also leads on update cadence (weekly vs every 2 months). On price, in-app purchases, device support and iOS requirement 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. PDF Scanner sells 3 in-app purchases, starting at $3.99 per 7 days and Echo sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
PDF Scanner ships an update every 2 months, Echo weekly. The most recent releases landed on November 9, 2026 and November 5, 2026 respectively.
| Parameter | PDF Scanner | Echo |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Weekly โ better |
| Ads | Yes | No โ better |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad, iPod โ better |
| Requires iOS | 16.0 | 15.1 โ better |
| Further details โ not scored | ||
| Size | 17 MB | 52 MB |
| Age rating | 4+ | 12+ |
| Developer | Isinsu Arici Tan | Khaled Almare |
In-app purchases
PDF Scanner
- Weekly Subscription$3.997 Days
- Yearly Subscription3 Days trial$9.991 Year
- Lifetime Access$6.99
Echo
- Echo Premium$4.991 Month
- Echo Premium$49.991 Year









