Comparison

Super App Lock:MystNote vs KCalc Lock

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

Head to head
About

Super App Lock:MystNote

Secure your phone's private data with this app locker. It offers automatic protection, emergency redirection, and a confusion method for unauthorized access attempts. Manage your children's app usage with parental controls.

Highlights
  • Lock any app or game
  • Automatic privacy protection
  • Emergency app redirection
  • Fake password confusion method
  • Parental control for children's mode
  • Simple and clear interface
Features
Read full description

Hey, Friends! There are too many secrets hidden in our phones that we don't want others to know, right? This is your personal bodyguard, helping you keep those little secrets locked tightly.
 Let's talk about how cool it is: Lock everything: Whether it's your game or application, lock it with just one click and no one else will want to peek. Automatic protection: forgot to lock? Set the conditions and the application lock will automatically start to protect your privacy. Emergency mode: In emergency situations, flipping the device will automatically redirect to other applications. Confusion method: Does anyone want to try their luck? Entering fake passwords leaves them confused. Parental control: Worried about children being messy? The children's mode allows them to only play the apps you want them to play with. Easy to use: The interface is concise and clear, making it easy to learn. If you have any questions or communication, please feel free to contact me: linxuebin6666@gmail.com

About

KCalc Lock

Secure your personal data with multi-layered protection. Lock sensitive apps, photos, and files using passwords or biometrics. Features include one-tap protection, a private photo vault, and a dual privacy shield for enhanced security.

Highlights
  • Password & Biometric Protection
  • One-Tap App Protection
  • Private Photo Vault
  • Customizable App Icon
  • Dual Privacy Shield (Guest Passcode)
Read full description

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

Super App Lock:MystNote4 screens
KCalc Lock4 screens

Verdict

The call

The clearest difference is review sentiment: KCalc Lock at 97% against Super App Lock:MystNote's 50%. KCalc Lock also leads on ads (none vs shown) and update cadence (every 3 days vs every 11 days). Super App Lock:MystNote's advantage is in-app purchases (none vs 2). On price, 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. KCalc Lock sells 2 in-app purchases, starting at $5.99 per month. Super App Lock:MystNote asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

KCalc Lock holds the better App Store score, 4.5 against 4.3. That said, the two scores are not equally well evidenced: KCalc Lock has 44 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 50% of Super App Lock:MystNote's written reviews are positive against 97% of KCalc Lock's.

UpkeepUpdate frequency

Super App Lock:MystNote ships an update every 11 days, KCalc Lock every 3 days. Both last shipped on October 24, 2026.

Scorecard7 real differences · 3 level
Super App Lock:MystNote versus KCalc Lock: the parameters behind the verdict, then further details
ParameterSuper App Lock:MystNoteKCalc Lock
PriceFreeFree
Rating4.3 (6 ratings)4.5 (44 ratings) — better
Positive reviews50.0% of reviews97.1% of reviews — better
Number of ratings644 — better
Update frequencyEvery 11 daysEvery 3 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supportedFree — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.016.0
Further details — not scored
Size19 MB33 MB
Age rating4+4+
Developer学斌 林海芸 吴

Customer experience

Super App Lock:MystNote

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

KCalc Lock

All ratings44 ratings
Positive88.6%
Neutral2.3%
Negative9.1%
Written reviews34 reviews
Positive97.1%
Neutral0.0%
Negative2.9%

In-app purchases

None

Super App Lock:MystNote

No in-app purchases

2 purchases

KCalc Lock

Subscriptions1
  • Pro Monthly$5.991 Month
One-time1
  • Pro Lifetime Access$39.99

Questions

Is Super App Lock:MystNote free?
Super App Lock:MystNote is free to download, with no in-app purchases.
Is KCalc Lock free?
KCalc Lock is free to download, with in-app purchases available.
Which has better reviews, Super App Lock:MystNote or KCalc Lock?
KCalc Lock is rated higher. Super App Lock:MystNote averages 4.3 out of 5 from 6 ratings, while KCalc Lock averages 4.5 from 44 ratings.
Do Super App Lock:MystNote or KCalc Lock have ads?
Super App Lock:MystNote shows ads; KCalc Lock does not.
Which is updated more often, Super App Lock:MystNote or KCalc Lock?
Super App Lock:MystNote ships an update every 11 days, and KCalc Lock every 3 days. Most recently, Super App Lock:MystNote was updated on October 24, 2026 and KCalc Lock on October 24, 2026.

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