Comparison

Smart Call Blocker vs OpenDoc

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Smart Call Blocker

Block unwanted calls with surgical precision using pattern matching. Define rules with wildcards to block entire number ranges, offering robust privacy and control over incoming calls. Works offline and at the system level for seamless protection.

Highlights
  • Pattern matching with wildcards
  • Block number ranges
  • System-level blocking via CallKit
  • 100% offline operation
  • Caller ID labels
  • Unlimited blocking rules (Premium)
Features
Read full description

Block unwanted calls with surgical precision using pattern matching. Unlike crowd-sourced blockers, Smart Call Blocker lets YOU define exactly which numbers to block using wildcard patterns. Block entire number ranges with a single rule. FEATURES: • Pattern matching — Use * as a wildcard for any digit • Block number ranges — e.g., 1900****** blocks 1 million 1900xxxxxx numbers in one rule • Background loading — Large blocklists keep loading after you leave the app, with a Live Activity on iOS 26 • SMS spam filter — The same patterns silently move junk texts from unknown senders to the Junk tab • Duplicate cleanup — One-tap removal of patterns already covered by a broader rule • 213 countries — Full E.164 international format support • Rule labels — Name each rule so you remember why you blocked it • System-level blocking — Powered by Apple CallKit PREMIUM: • Up to 7 wildcards per pattern — block a 10-million-number range in one rule (you confirm before saving) • Unlimited blocking rules • Block up to 1 billion numbers in total (free: 6 million); the real limit depends on your device • Access to all 213 countries • 136 pre-built spam templates across 25 countries • Siri Shortcuts and automation • Priority support FREE: • 5 blocking rules • iCloud Sync across all your devices • Block up to 6 million numbers • Single-country lock (your first rule's country) • Pattern matching with up to 6 wildcards (1 million numbers per rule) • Allow list and import/export • Weekly blocking report HOW IT WORKS: 1. Create a pattern using digits and * wildcards 2. Preview matching numbers before blocking 3. Enable the extension in Settings > Apps > Phone > Call Blocking & Identification 4. All matching calls are automatically blocked — no app needed PRIVACY FIRST: • No data collected. No servers. Just your iPhone and your iCloud. • Blocking runs entirely on your device, even offline • Your patterns sync only through your own private iCloud — we never see your numbers • No tracking or analytics • No account required ABOUT OUR TEMPLATES: Smart Call Blocker ships no block list of its own and blocks nothing until you add a rule. Optional templates each cite a public warning (banks, provincial police, national press) and cover at most 1 million numbers per range around a reported prefix. You decide what to block. PATTERN EXAMPLES: • 1900****** — blocks 1 million 1900xxxxxx premium-rate numbers in Vietnam • 028399***** — blocks 100,000 numbers in a Ho Chi Minh City landline range (fixed-line numbers are 11 digits with the leading 0) • 900555**** — blocks 10,000 numbers in one US 1-900 premium-rate exchange Smart Call Blocker works at the system level using Apple's CallKit framework, so calls are blocked before your phone ever rings. PREMIUM PURCHASE OPTIONS • Premium Monthly: $1.99/month, auto-renewing • Premium Yearly: $14.99/year, auto-renewing • Premium Lifetime: $24.99 one-time purchase, not a subscription • Subscriptions auto-renew unless cancelled at least 24 hours before the end of the current period. • Payment is charged to your Apple ID at confirmation of purchase. • Manage or cancel anytime in App Store settings. Privacy Policy: https://khanhnv3007.github.io/smartcallblocker-privacy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

OpenDoc

Features
Read full description

OpenDoc-Scanner turns your iPhone into a fast, private document scanner and PDF toolkit. Scan receipts, contracts, notes, IDs, forms, books, and multi-page documents in seconds. OpenDoc automatically detects document edges, straightens perspective, enhances readability, and helps you turn paper into clean digital files without unnecessary complexity. Built for people who just want to scan and get things done. Why OpenDoc-Scanner? • No ads • No watermarks • No account required • No subscription required to start scanning • No unnecessary cloud dependency • Your documents stay on your device • Fast, clean, mobile-first experience • Works offline for core document workflows Scan documents quickly Capture single pages or large multi-page documents with a streamlined scanning experience designed to stay fast even when working with longer files. OpenDoc can automatically detect documents, crop edges, correct perspective, and improve readability so your scans look clean and professional. Edit and improve your scans Fine-tune your documents before saving or sharing. • Crop and straighten pages • Rotate pages • Reorder pages • Delete or duplicate pages • Add additional scans or images • Apply document, grayscale, and black & white enhancements • Keep your original pages preserved while editing Create and manage PDFs Turn scanned pages and images into high-quality PDF documents. • Create multi-page PDFs • Merge documents • Split and extract pages • Reorganize pages • Export as PDF or images • Choose quality options when exporting • Import supported PDF files and images Recognize and search text Use on-device OCR to recognize text inside scanned documents. • Extract text from scans • Copy recognized text • Search inside your documents • Find documents using names, metadata, and recognized content Organize everything Keep your document library clean without making the app complicated. • Rename documents • Create folders • Add favorites • Use tags • Search your library • Manage larger document collections easily Quick document editing Make small changes without needing a full desktop PDF editor. Add: • Text • Images • Signatures • Dates • Checkmarks • Drawings • Highlights Useful scanning tools OpenDoc also includes workflows for tasks such as: • ID card scanning • Batch scanning • Large multi-page scanning • Image-to-PDF workflows • Document enhancement Private by design OpenDoc-Scanner is built around a local-first approach. Your core scanning, OCR, editing, organization, and PDF workflows are designed to work directly on your device. There is no requirement to create an account just to scan your documents, and OpenDoc does not add ads or watermarks to your files. Whether you need to scan a receipt, digitize paperwork, send a signed PDF, archive important documents, extract text, or manage a large document, OpenDoc-Scanner keeps the process simple: Scan. Clean. Save. Share. No clutter. No ads. No watermarks. Just your documents.

Screenshots

Smart Call Blocker4 screens
OpenDoc4 screens

Verdict

The call

The clearest difference is in-app purchases: OpenDoc at none against Smart Call Blocker's 3. On price, ads, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Smart Call Blocker sells 3 in-app purchases, starting at $1.99 per month. OpenDoc asks for nothing beyond the download.

Scorecard1 real difference · 8 level
Smart Call Blocker versus OpenDoc: the parameters behind the verdict, then further details
ParameterSmart Call BlockerOpenDoc
PriceFreeFree
Rating3.7 (3 ratings) — better—
Number of ratings3 — better—
Update frequencyEvery 3 days—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhoneiPhone
Requires iOS17.016.4 — better
Further details — not scored
Size7 MB59 MB
Age rating4+4+
DeveloperVan Khanh NguyenKareem Samir

In-app purchases

3 purchases

Smart Call Blocker

Subscriptions2
  • Premium Monthly$1.991 Month
  • Premium Yearly$14.991 Year
One-time1
  • Premium Trọn Đời$24.99
None

OpenDoc

No in-app purchases

Questions

Is Smart Call Blocker free?
Smart Call Blocker is free to download, with in-app purchases available.
Is OpenDoc free?
OpenDoc is free to download, with no in-app purchases.
Do Smart Call Blocker or OpenDoc have ads?
Neither Smart Call Blocker nor OpenDoc shows ads.

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