Comparison

MorseChat 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

MorseChat

This secure messenger prioritizes privacy with features like anonymous registration, app login passwords, and content destruction. It offers the option to connect to a private server for enhanced control and a user-friendly interface.

Highlights
  • Anonymous 8-digit phone number registration
  • App login password protection
  • Destroy password for content deletion
  • Connect to private server
  • User-friendly UI
Features
Read full description

MorseChat Messenger is based on open source project Signal. We improve the privacy protection by following approaches: - Replace phone number registration with a 'fake' 8-digit phone number - Add login password to protect app - Use destroy password to delete all content when you are forced to login - You can connect to your own private Mooorse server - UI layout easier to use Source code: https://github.com/hsa111/Morse-iOS.git

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

MorseChat4 screens
KCalc Lock4 screens

Verdict

The call

The clearest difference is review sentiment: KCalc Lock at 97% against MorseChat's 39%. KCalc Lock also leads on price (Free vs $0.99) and update cadence (every 3 days vs fortnightly). MorseChat's advantage is in-app purchases (none vs 2) and rating (4.9 vs 4.5). On ads, monetization model and device support 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

KCalc Lock is free to download; MorseChat costs $0.99 up front. KCalc Lock sells 2 in-app purchases, starting at $5.99 per month. MorseChat asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

MorseChat holds the better App Store score, 4.9 against 4.5. That said, the two scores are not equally well evidenced: MorseChat has 227 ratings behind it against 44, so its average is the more settled of the two. Written reviews complicate that: 39% of MorseChat's written reviews are positive against 97% of KCalc Lock's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

MorseChat ships an update fortnightly, KCalc Lock every 3 days. Both last shipped on October 24, 2026.

Scorecard7 real differences · 3 level
MorseChat versus KCalc Lock: the parameters behind the verdict, then further details
ParameterMorseChatKCalc Lock
Price$0.99Free — better
Rating4.9 (227 ratings) — better4.5 (44 ratings)
Positive reviews38.9% of reviews97.1% of reviews — better
Number of ratings227 — better44
Update frequencyFortnightlyEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better16.0
Further details — not scored
Size167 MB33 MB
Age rating4+4+
DeveloperFourCity海芸 吴

Customer experience

MorseChat

All ratings227 ratings
Positive98.2%
Neutral0.9%
Negative0.9%
Written reviews18 reviews
Positive38.9%
Neutral16.7%
Negative44.4%

KCalc Lock

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

In-app purchases

None

MorseChat

No in-app purchases

2 purchases

KCalc Lock

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

Questions

Is MorseChat free?
MorseChat costs $0.99, with no in-app purchases.
Is KCalc Lock free?
KCalc Lock is free to download, with in-app purchases available.
Which has better reviews, MorseChat or KCalc Lock?
MorseChat is rated higher. MorseChat averages 4.9 out of 5 from 227 ratings, while KCalc Lock averages 4.5 from 44 ratings.
Do MorseChat or KCalc Lock have ads?
Neither MorseChat nor KCalc Lock shows ads.
Which is updated more often, MorseChat or KCalc Lock?
MorseChat ships an update fortnightly, and KCalc Lock every 3 days. Most recently, MorseChat was updated on October 24, 2026 and KCalc Lock on October 24, 2026.

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