Comparison

KCalc Lock vs Apocentro

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

Head to head
About

KCalc Lock

Secure your personal data with multi-layered protection. Lock sensitive apps, photos, and files with password or biometric authentication. Features a private photo vault and a dual privacy shield for enhanced discretion.

Highlights
  • Password and biometric protection
  • One-tap app locking
  • Private photo vault
  • Customizable app icon
  • Dual privacy shield (Second Space)
  • Auto-lock feature
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

About

Apocentro

Analyze investment strategies with detailed backtest results for stocks, forex, commodities, and crypto. Communicate securely with your trading team through encrypted chats, group calls, and file sharing.

Highlights
  • Strategy backtesting with key metrics
  • Smart search for optimal strategies
  • Live signals and strategy leaderboard
  • Real-time market news feed
  • End-to-end encrypted chat and calls
  • File and location sharing
Features
Read full description

Strategy Backtests, Market News and Encrypted Messaging: Compare long-term backtest results for stocks, forex, commodities and crypto: annualised return, max drawdown, Sharpe ratio and win rate. Then talk it through with your team in private chat. Features: - Smart Search ranks the best strategies for any symbol and timeframe - Live signals, a strategy leaderboard and a DCF calculator - A real-time market news feed - End-to-end encrypted chats, group chats, and voice and video calls - Share photos, files, voice messages and your location Who It's For: Quant enthusiasts, traders and small trading teams.

Screenshots

KCalc Lock4 screens
Apocentro3 screens

Verdict

The call

The clearest difference is rating: Apocentro at 5.0 against KCalc Lock's 4.5. Apocentro also leads on in-app purchases (none vs 2). KCalc Lock's advantage is ratings volume (45 vs 1) and update cadence (every 5 days vs every 11 days). On price, ads, 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. Apocentro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Apocentro holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: KCalc Lock has 45 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

KCalc Lock ships an update every 5 days, Apocentro every 11 days. The most recent releases landed on October 30, 2026 and October 23, 2026 respectively.

Scorecard5 real differences · 5 level
KCalc Lock versus Apocentro: the parameters behind the verdict, then further details
ParameterKCalc LockApocentro
PriceFreeFree
Rating4.5 (45 ratings)5.0 (1 ratings) — better
Positive reviews97.1% of reviews—
Number of ratings45 — better1
Update frequencyEvery 5 days — betterEvery 11 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.015.6 — better
Further details — not scored
Size33 MB91 MB
Age rating4+17+
Developer海芸 吴升 李

Customer experience

KCalc Lock

All ratings45 ratings
Positive86.7%
Neutral2.2%
Negative11.1%
Written reviews34 reviews
Positive97.1%
Neutral0.0%
Negative2.9%

Apocentro

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and 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

Apocentro

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

KCalc Lock

Subscriptions1
  • Pro Monthly$5.991 Month
One-time1
  • Pro Lifetime Access$39.99
None

Apocentro

No in-app purchases

Questions

Is KCalc Lock free?
KCalc Lock is free to download, with in-app purchases available.
Is Apocentro free?
Apocentro is free to download, with no in-app purchases.
Which has better reviews, KCalc Lock or Apocentro?
Apocentro is rated higher. KCalc Lock averages 4.5 out of 5 from 45 ratings, while Apocentro averages 5.0 from 1 ratings.
Do KCalc Lock or Apocentro have ads?
Neither KCalc Lock nor Apocentro shows ads.
Which is updated more often, KCalc Lock or Apocentro?
KCalc Lock ships an update every 5 days, and Apocentro every 11 days. Most recently, KCalc Lock was updated on October 30, 2026 and Apocentro on October 23, 2026.

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