Best PDF Lock & Unlock alternatives: apps like PDF Lock & Unlock

10+ similar apps compared and reviewed

4.1 avg rating
8 free apps
Updated November 2026

PDF Lock & Unlock is great, but it's not the only option. Explore 10+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to PDF Lock & Unlock

QR SafeScan - Threat Detector#3

QR SafeScan - Threat Detector by Heriberto Triana

by Stellarscope Security
Worth Considering
🔧 Utilities
5.0(1 ratings)
Free
QR SafeScan - Threat Detector screenshot 1
QR SafeScan - Threat Detector screenshot 2
QR SafeScan - Threat Detector screenshot 3
QR SafeScan - Threat Detector screenshot 4
QR SafeScan - Threat Detector screenshot 5
QR SafeScan - Threat Detector screenshot 6

This app scans QR codes and checks their URLs against a threat intelligence database before you visit them. It helps protect you from phishing, malware, and other online dangers by revealing the destination of hidden QR code links. The app prioritizes user privacy with no login required and local data storage.

More apps like PDF Lock & Unlock

4
Link Check Lite
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PDF Unlocker Pro
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PDF Unlocker Pro
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6
Basic Browser
Basic Browser
Basic Browser
Simple and Fast Browser.
Free
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7
Encrypto!
Encrypto!
Encrypto!
Data is in your hands!
Free

Securely encrypt and decrypt your sensitive data using advanced cryptographic technologies. This app offers a multi-level encryption system and an intuitive interface for easy data protection.

Manual encryption and decryptionMulti-level encryption system (AES-256, RSA)Intuitive user interface
🔧 Utilities
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freemium
8
Backup Disk
Backup Disk
Backup Disk
Backup files to mobile device
Free
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(0)
9
Data Widget: remaining data
Data Widget: remaining data
Data Widget: remaining data
against your own plan date
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Effortlessly monitor your cellular data usage with a simple swipe. This app displays both time and data consumption in a clear, at-a-glance diagram. It's compatible with all carrier networks and offers real-time tracking and historical data.

Double progress diagramTime and data at a glanceReal-time monitoring
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10
Sheet Bending Calculators
Sheet Bending Calculators
Sheet Bending Calculators
Steel Plate Bending Helper
Free

Calculate the precise length of material needed for bending metal sheets, bars, and tubes. Eliminate guesswork and streamline fabrication with accurate, efficient calculations for various metal types and shapes.

Calculate material length for bendingSupports sheets, bars, and tubesHandles round and square bars
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(13)
free with in-app purchases