Comparison

Lockdown vs Screen Checker2

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

Head to head
About

Lockdown

Features
Read full description

Secure your private photos, messages, and documents with password-protected PDFs. Privacy-focused, no cloud, no account needed. Hesitant to share sensitive content? Use Lock Photos to protect with a password for secure sharing. Convert photos files into encrypted, non-editable, non-printable PDFs with just a few taps. KEY FEATURES: :: Photo Protection: Secure multiple photos into an encrypted PDFβ€”perfect for ID photo or passport photo storage. :: Screenshot Security: Encrypt your screenshots instantly and keep them safe in your smart vault. :: Document Scanner: Scan and secure documents instantly, making it ideal for 2x2 photo and ID storage. :: Encrypted Messaging: Protect messages and notes with a password safe PDF lock. :: PDF Protection: Add passwords to existing PDF files, ensuring security plus. :: Smart Organization: Keep files neatly arranged in custom folders like a photo manager. PRIVACY FIRST: :: No cloud storage - everything stays on your device, ensuring data app security. :: No account required - enjoy secure storage with one password per file. :: No data collection - we prioritize smart data protection. :: Your content, your control - store important files like imemories securely. EASY TO USE: :: Select content to protect - from your photo manager, screenshots, scanned documents, or text messages. :: Set a unique secure lock password for each file. :: Secure sharing - only those with the password can view. Note: Each lock has its own password. Remember your passwords, as they are essential to access your locked files. PERFECT FOR: :: Secret messages in a talkie format :: Sensitive family sharing of private photos :: Secure business documents & next up project files :: Confidential information that requires margin edge security :: Hassle-free share app functionality for encrypted files Take control of your privacy now. Convert, protect, and share securely with Lock & Share. Download and secure your digital life today!

About

Screen Checker2

Features
Read full description

Screen Checker is a professional screen quality diagnostic tool. Supports dead pixel detection with solid color backgrounds, color gradient test, grayscale test, screen burn-in test, and touch area detection. Ideal for new phone inspection, second-hand device testing, and screen repair comparison. All tests run locally without network permissions.

Screenshots

Lockdown4 screens
Screen Checker24 screens

Verdict

The call

The clearest difference is price: Lockdown at Free against Screen Checker2's $0.29. Lockdown also leads on update cadence (monthly vs every 3 months). Screen Checker2's advantage is in-app purchases (none vs 3) and iOS requirement (15.0 vs 17.6). On ads and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Lockdown is free to download; Screen Checker2 costs $0.29 up front. Lockdown sells 3 in-app purchases, starting at $2.99 per 7 days. Screen Checker2 asks for nothing beyond the download.

UpkeepUpdate frequency

Lockdown ships an update monthly, Screen Checker2 every 3 months. The most recent releases landed on October 4, 2026 and October 9, 2026 respectively.

Scorecard4 real differences Β· 2 level
Lockdown versus Screen Checker2: the parameters behind the verdict, then further details
ParameterLockdownScreen Checker2
PriceFree β€” better$0.29
Update frequencyMonthly β€” betterEvery 3 months
AdsNoNo
In-app purchasesYesNo β€” better
DevicesiPhone, iPadiPhone, iPad, iPod β€” better
Requires iOS17.615.0 β€” better
Further details β€” not scored
Size7 MB7 MB
Age rating4+4+
DeveloperSamson TererNanjing Yunxiaochuang Technology Co., Ltd

In-app purchases

3 purchases

Lockdown

Subscriptions2
  • Weekly Premium3 Months trial$2.997 Days
  • Annual Premium$39.991 Year
One-time1
  • Lifetime offer$0.99
None

Screen Checker2

No in-app purchases

Questions

Is Lockdown free?
Lockdown is free to download, with in-app purchases available.
Is Screen Checker2 free?
Screen Checker2 costs $0.29, with no in-app purchases.
Do Lockdown or Screen Checker2 have ads?
Neither Lockdown nor Screen Checker2 shows ads.
Which is updated more often, Lockdown or Screen Checker2?
Lockdown ships an update monthly, and Screen Checker2 every 3 months. Most recently, Lockdown was updated on October 4, 2026 and Screen Checker2 on October 9, 2026.

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