Lock Apps vs KCalc Lock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Lock Apps
This app helps you control and restrict the usage of other applications on your device. It offers privacy protection, time limits, and password security to prevent unauthorized access or changes.
- Privacy protection for sensitive content
- Customized app usage restrictions
- Limit app usage time
- Prevent accidental deletion or downloads
- Double password protection
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* Lock & Protect APP Privacy & Information Security * Customized Restrictions on APP USAGE * Limit APP USAGE TIME for KIDS Features - Privacy Protection: restrict the use of any application and protect sensitive private content - Usage Restrictions: prohibit the installation of illegal applications and control application usage time - Password Protection: double password protection to prevent modification - Application Control: prohibit accidental deletion of applications, prohibit application downloads, prohibit accidental application purchases Protect NOW!
KCalc Lock
Secure your sensitive apps, photos, and files with multi-layered protection. Features include password and biometric unlock, one-tap app locking, a private photo vault, and a customizable icon. Offers a dual privacy shield for discreet access.
- Password and biometric protection
- One-tap app locking
- Private photo vault
- Customizable app icon
- Dual privacy shield (Second Space)
- Auto-lock feature
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KCalc – Your Fully Private & Secure Space With KCalc Privacy Lock, your personal data is protected by multi-layered security. No more worrying about friends or colleagues accidentally accessing your secret apps, photos, or files. • Password & Biometric Protection Secure your space with a strong password or unlock seamlessly via Face ID. • One-Tap Protection Instantly protect sensitive apps with a single tap. Enable the auto-lock feature for enhanced convenience and security. • Private Photo Vault Safely store confidential photos in an encrypted gallery, safeguarded from prying eyes. • Custom App Icon Personalize the app icon to match your style. Choose from multiple icon options for a truly private and personalized experience. • Dual Privacy Shield When asked to unlock under scrutiny, enter the guest passcode to instantly switch to Second Space — your private data stays fully hidden while showing pre-set content. Download KCalc Privacy Lock now and take full control of your digital privacy — fast, smart, and secure. Pro Subscription Information KCalc offers an auto-renewable Pro subscription (monthly). Subscribing unlocks all Pro features in the app. - Payment: Payment will be charged to your Apple Account at confirmation of purchase. - Auto-Renewal: Your subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. - Manage or Cancel: You can manage your subscription and turn off auto-renewal at any time in Settings → tap your name → Subscriptions. Terms of Use: https://dawn-zephyr-0e3.notion.site/Terms-of-Use-End-User-License-Agreement-3dc70fc5aff880d382dcca2c6441df51 Privacy Policy: https://dawn-zephyr-0e3.notion.site/Private-Policy-3dc70fc5aff880e783aed858da8eaad2 Feedback & Support: aiseaystudio@gmail.com
Screenshots
Verdict
The clearest difference is in-app purchases: Lock Apps at none against KCalc Lock's 2. KCalc Lock's advantage is ads (none vs shown) and update cadence (every 5 days vs every 3 months). On price, rating, review sentiment and ratings volume 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
Both are free to download. KCalc Lock sells 2 in-app purchases, starting at $5.99 per month. Lock Apps asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.6 for Lock Apps against 4.5 for KCalc Lock. Both are backed by a comparable volume of ratings — 18 and 45 respectively. Written reviews are what separate them: 100% of Lock Apps's written reviews are positive against 97% of KCalc Lock's.
Lock Apps ships an update every 3 months, KCalc Lock every 5 days. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.
| Parameter | Lock Apps | KCalc Lock |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (18 ratings) — better | 4.5 (45 ratings) |
| Positive reviews | 100.0% of reviews — better | 97.1% of reviews |
| Number of ratings | 18 | 45 — better |
| Update frequency | Every 3 months | Every 5 days — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Freemium |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.0 | 16.0 |
| Further details — not scored | ||
| Size | 18 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | 嘉纯 赖 | 海芸 吴 |
Customer experience
Lock Apps
KCalc Lock
Bugs and requests
Lock Apps
Not enough reviews yet to summarise bugs or requests.
KCalc Lock
Reported bugs
1 issue- Cannot see photos after being locked out
Requested features
2 requests- Add shortcut integration
- Option for Apple Calculator icon
In-app purchases
Lock Apps
No in-app purchases
KCalc Lock
- Pro Monthly7 Days trial$5.991 Month
- Pro Lifetime Access$39.99








