Comparison

Calctan vs PROG_CALC

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

PROG_CALC

This app offers a programmable calculator with two distinct modes for daily computing and advanced mathematical functions. It supports system conversions between binary, octal, decimal, and hexadecimal, and allows for variable storage and code sharing.

Highlights
  • Basic and advanced calculation modes
  • Syntax parser
  • Variable storage and editing
  • Binary, octal, decimal, hexadecimal conversion
  • Built-in code examples
  • Code sharing via QR code or file
Read full description

The programming calculator provides two modes of operation. It has built-in basic operation functions, syntax parser, and supports a variety of application scenarios. 【Basic calculation】 Basic mode provides basic calculator functions for daily computing applications. 【Mathematical function】 Built-in rich mathematical functions, easy to implement basic calculations. 【Variable Storage】 Provides variable storage function, can store intermediate calculation results in basic mode, import and export with one key during application, and edit mode provides variable browsing function to easily grasp calculation results. 【System conversion】 Support binary, octal, decimal, hexadecimal conversion to meet the computing needs of different platforms. 【Code Example】 With built-in code writing examples, you can easily learn computing methods and expand application scenarios. 【Code Sharing】 The code can be shared through a QR code or a file, and the application also supports reading files directly, or scanning a QR code, which can be written on a computer and applied on a mobile phone.

Screenshots

Calctan4 screens
PROG_CALC4 screens

Verdict

The call

The clearest difference is review sentiment: PROG_CALC at 100% against Calctan's 29%. PROG_CALC also leads on rating (5.0 vs 4.5) and in-app purchases (none vs 1). Calctan's advantage is ratings volume (61 vs 1). On price 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. Calctan sells 1 one-off in-app purchase. PROG_CALC asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

PROG_CALC holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Calctan has 61 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 29% of Calctan's written reviews are positive against 100% of PROG_CALC's.

UpkeepUpdate frequency

Calctan ships an update every 3 months, PROG_CALC every 2 weeks. The most recent releases landed on October 11, 2026 and September 17, 2026 respectively.

Scorecard9 real differences · 1 level
Calctan versus PROG_CALC: the parameters behind the verdict, then further details
ParameterCalctanPROG_CALC
PriceFreeFree
Rating4.5 (61 ratings)5.0 (1 ratings) — better
Positive reviews28.6% of reviews100.0% of reviews — better
Number of ratings61 — better1
Update frequencyEvery 3 monthsEvery 2 weeks — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod, Mac — better
Requires iOS16.613 — better
Further details — not scored
Size11 MB78 MB
Age rating4+4+
DeveloperJorge Lozada嘉欣 胡

Customer experience

Calctan

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

PROG_CALC

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Calctan

One-time1
  • No Ads$9.99
None

PROG_CALC

No in-app purchases

Questions

Is Calctan free?
Calctan is free to download, with in-app purchases available.
Is PROG_CALC free?
PROG_CALC is free to download, with no in-app purchases.
Which has better reviews, Calctan or PROG_CALC?
PROG_CALC is rated higher. Calctan averages 4.5 out of 5 from 61 ratings, while PROG_CALC averages 5.0 from 1 ratings.
Do Calctan or PROG_CALC have ads?
Calctan shows ads; PROG_CALC does not.
Which is updated more often, Calctan or PROG_CALC?
Calctan ships an update every 3 months, and PROG_CALC every 2 weeks. Most recently, Calctan was updated on October 11, 2026 and PROG_CALC on September 17, 2026.

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