Comparison

Calctan vs Secure Password Lock

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

Head to head
About

Calctan

This sophisticated calculator app offers a minimalist design with advanced mathematical functions and extensive personalization options. It seamlessly syncs across devices and includes multitasking features for enhanced productivity.

Highlights
  • Intuitive minimalist design
  • 100+ customizable themes
  • 47 advanced mathematical functions
  • Automatic calculation history
  • iCloud sync across devices
  • Split Screen and Swipe Mode multitasking
  • Share calculations easily
Features
Read full description

Calctan is a sophisticated calculator app designed for iOS devices (iPhone and iPad), celebrated for its elegant, minimalist design and robust functionality that surpasses traditional calculators. Tailored for students, professionals in mathematics, physics, engineering, and anyone seeking a highly customizable and intuitive calculation tool, Calctan combines advanced mathematical capabilities with a seamless user experience. Its sleek interface and extensive personalization options make it both a practical tool and a visually appealing addition to your device. The app’s commitment to user-centric design is evident in its seamless integration with iOS ecosystems. With iCloud sync, your calculations and preferences are always up-to-date, whether you’re switching between devices or collaborating on the go. Features like Split Screen and Swipe Mode empower iPad users to maximize productivity, while the ability to share calculations fosters effortless communication. Calctan is more than a calculator—it’s a dynamic, adaptable tool that elevates your calculation experience with style, precision, and efficiency. Key Features: 1. Intuitive Design: Calctan’s clean, minimalistic interface prioritizes usability, presenting essential calculator elements in a clear, distraction-free layout that ensures effortless navigation and operation. 2. Personalized Interface: Choose from 100 pre-installed themes or craft a unique look with a custom color picker. Fine-tune button corner radius, spacing, and layout to optimize comfort and readability, allowing the app to reflect your personal style. 3. Advanced Math: Access 47 powerful functions, including trigonometric operations (sine, cosine, tangent, and their inverses), percentages for budgeting, exponents, logarithms (base-10, natural, base-2), and roots (square, cube). Switch between degrees and radians, compute factorials for permutations, or use absolute values and reciprocals—perfect for scientific, technical, and financial calculations. 4. Calculation History: Automatically saves and organizes your calculations, enabling you to revisit, edit, or reuse past results with ease, streamlining complex workflows. 5. iCloud Sync: Seamlessly syncs calculations and customizations across your iPhone and iPad, ensuring a consistent and cohesive experience across all your devices. 6. Multitasking Modes: - Split Screen Mode: On iPad, use Calctan alongside another app, such as performing calculations while referencing a document or spreadsheet. - Swipe Mode: Access a second app at the bottom of the screen while keeping Calctan active at the top, enhancing productivity for multitasking users. 7. Share Calculations: Share results effortlessly via email, text, or other apps, making collaboration and communication quick and convenient. Additional Highlights: • Library of basic mathematical constants • Random color theme generator for creative inspiration • Engaging sounds and animations for a dynamic user experience • Adjustable decimal places, currency symbols, and thousands separators • Dark Mode support for comfortable use in low-light environments • Comprehensive settings menu for full control over app preferences • Detailed user manual for easy onboarding and reference

About

Secure Password Lock

This application helps you securely store and manage all your passwords in one place. It offers various unlock methods for quick and safe access to your accounts, from social media to banking.

Highlights
  • Local password storage
  • Gesture app lock
  • Face and fingerprint unlock
  • Add pictures to passwords
  • Custom password categories
  • Category management
Features
Read full description

Secure Password Lock - Your Exclusive Password Manager Do you often get annoyed by forgetting passwords? Are you worried about your passwords being leaked or stolen? Do you want a secure, convenient, and beautiful password recording app? If your answer is yes, then you must try Secure Password Lock! Secure Password Lock is a professional password recording app that can help you easily manage and protect your various passwords. Whether it's social accounts, shopping websites, gaming platforms, or bank cards, emails, Wi-Fi, you can create and save your passwords in Secure Password Lock, so you can view and use them anytime and anywhere. Secure Password Lock has the following features: - Local storage, no user information collection. Your passwords are only saved on your device and will not be uploaded to any server, ensuring your privacy and security. - Support gesture app lock. You can set a gesture password to protect your app, preventing others from opening your Secure Password Lock. - Support face unlock and fingerprint unlock. If your device supports face recognition or fingerprint recognition, you can use these methods to quickly unlock your Secure Password Lock, more convenient and secure. - You can add pictures to display the recorded passwords. You can add a picture for each password, making your passwords more intuitive and interesting. - Support adding filters and cropping to pictures. You can edit the added pictures, add filters or crop them, making your pictures more beautiful and personalized. - Support custom password categories. You can create different password categories according to your needs, such as social, shopping, gaming, etc., making it easy for you to manage and find your passwords. - Support category management, allowing sorting and adding/deleting categories. You can manage the categories you create, adjust the order or add/delete categories, making your Secure Password Lock more tidy and clear. Secure Password Lock is a trustworthy password recording app that can free you from the trouble of forgetting passwords and let you enjoy a more secure and convenient digital life. Download it now!

Screenshots

Calctan4 screens
Secure Password Lock4 screens

Verdict

The call

Calctan and Secure Password Lock both sit at 4.5 stars, but that hides the real split: 87% of Secure Password Lock's written reviews are positive against 29% of Calctan's. Secure Password Lock also leads on in-app purchases (none vs 1) and ads (none vs shown). Calctan's advantage is price (Free vs $0.99) and ratings volume (61 vs 16). On rating 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

Calctan is free to download; Secure Password Lock costs $0.99 up front. Calctan sells 1 one-off in-app purchase. Secure Password Lock asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for Calctan against 4.5 for Secure Password Lock. Both are backed by a comparable volume of ratings — 61 and 16 respectively. Written reviews are what separate them: 29% of Calctan's written reviews are positive against 87% of Secure Password Lock's.

UpkeepUpdate frequency

Calctan ships an update every 3 months, Secure Password Lock every 2 weeks. The most recent releases landed on September 25, 2026 and September 22, 2026 respectively.

Scorecard8 real differences · 2 level
Calctan versus Secure Password Lock: the parameters behind the verdict, then further details
ParameterCalctanSecure Password Lock
PriceFree — better$0.99
Rating4.5 (61 ratings)4.5 (16 ratings)
Positive reviews28.6% of reviews87.0% of reviews — better
Number of ratings61 — better16
Update frequencyEvery 3 monthsEvery 2 weeks — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.613.0 — better
Further details — not scored
Size11 MB18 MB
Age rating4+4+
DeveloperJorge Lozada运强 翁

Customer experience

Calctan

All ratings61 ratings
Positive88.5%
Neutral0.0%
Negative11.5%
Written reviews7 reviews
Positive28.6%
Neutral0.0%
Negative71.4%

Secure Password Lock

All ratings16 ratings
Positive87.5%
Neutral6.3%
Negative6.3%
Written reviews23 reviews
Positive87.0%
Neutral4.3%
Negative8.7%

In-app purchases

1 purchases

Calctan

One-time1
  • No Ads$9.99
None

Secure Password Lock

No in-app purchases

Questions

Is Calctan free?
Calctan is free to download, with in-app purchases available.
Is Secure Password Lock free?
Secure Password Lock costs $0.99, with no in-app purchases.
Which has better reviews, Calctan or Secure Password Lock?
Calctan and Secure Password Lock are both rated 4.5 out of 5 on the App Store, from 61 and 16 ratings respectively.
Do Calctan or Secure Password Lock have ads?
Calctan shows ads; Secure Password Lock does not.
Which is updated more often, Calctan or Secure Password Lock?
Calctan ships an update every 3 months, and Secure Password Lock every 2 weeks. Most recently, Calctan was updated on September 25, 2026 and Secure Password Lock on September 22, 2026.

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