Comparison

Password 4 Pro vs 雙重驗證

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

Head to head
About

Password 4 Pro

Securely manage all your passwords and sensitive information with military-level encryption. This app offers local backups, a secure notebook, and the ability to store images like credit cards. It features biometric unlock and an anti-screenshot function for enhanced privacy.

Highlights
  • Local data backup
  • Secure notebook
  • Save image information
  • Generate random passwords
  • Biometric unlock
  • Anti-screenshot
Features
Read full description

******* Password Management Expert ******* Too many password to remember? Worried about the safety of your password? With Password 4, there are no more such problems! We do not store any password of users’. Instead, the password backup will be done by Documents App. In the first generation product, we have collected many feedbacks from users. And in Password 4, we have updated the interface and make a brand new password management tool. We have applied military-level encryption algorithm and nobody may crack the password for the database exported or the data backed up in Documents App. You only need to remember a simple 4 digit password. Functions: 1. The program itself will not connect to the internet while local back up is in operation. 2. Local data backup 3. Secure notebook to record private words 4. Save image information including password security card, credit cards, etc. 5. Customize categories 6. Generate random password automatically 7. Customize the format of classified information. Features: • Biometric Unlock • Backstage anti-screenshot • Optimized for iOS 17

About

雙重驗證

Read full description

* 掃描、新增雙重驗證 QR code * 生成一次性登入密碼 (one-time password, OTP) * 佈景主題切換、字型調整、無廣告

Screenshots

Password 4 Pro4 screens
雙重驗證2 screens

Verdict

The call

The clearest difference is in-app purchases: 雙重驗證 at none against Password 4 Pro's 3. 雙重驗證 also leads on ads (none vs shown) and device support (4 vs 2). Password 4 Pro's advantage is update cadence (fortnightly vs every 8 months). On price 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. Password 4 Pro sells 3 in-app purchases, starting at $0.99 per month. 雙重驗證 asks for nothing beyond the download.

UpkeepUpdate frequency

Password 4 Pro ships an update fortnightly, 雙重驗證 every 8 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard4 real differences · 6 level
Password 4 Pro versus 雙重驗證: the parameters behind the verdict, then further details
ParameterPassword 4 Pro雙重驗證
PriceFreeFree
Rating2.5 (2 ratings) — better—
Positive reviews44.7% of reviews—
Number of ratings2 — better—
Update frequencyFortnightly — betterEvery 8 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad, iPod, Mac — better
Requires iOS15.014.1 — better
Further details — not scored
Size13 MB0 MB
Age rating4+4+
DeveloperGerinn LLCMeng-Yuan Huang

In-app purchases

3 purchases

Password 4 Pro

Subscriptions3
  • Monthly$0.991 Month
  • Quarterly$1.993 Months
  • Annual$5.991 Year
None

雙重驗證

No in-app purchases

Questions

Is Password 4 Pro free?
Password 4 Pro is free to download, with in-app purchases available.
Is 雙重驗證 free?
雙重驗證 is free to download, with no in-app purchases.
Do Password 4 Pro or 雙重驗證 have ads?
Password 4 Pro shows ads; 雙重驗證 does not.
Which is updated more often, Password 4 Pro or 雙重驗證?
Password 4 Pro ships an update fortnightly, and 雙重驗證 every 8 months. Most recently, Password 4 Pro was updated on November 1, 2026 and 雙重驗證 on November 3, 2026.

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