Report updated Apr 16, 2026

Overview · Full Intel report in progress

CITIZEN Calculator is an established tools app that is completely free. With a 4.4/5 rating from 57.4K reviews, it shows polarized user reception.

What is CITIZEN Calculator?

CITIZEN Calculator is a utility app that replicates the functionality of the classic CITIZEN CT-555N desktop calculator. It provides a suite of specialized business and accounting tools, including tax and mark-up calculations, for users requiring a familiar physical calculator interface on a mobile device.

Current Momentum

v2.0

Bug fixes: Fixed issues to make things run more smoothly.

AI-powered deep analysis surfacing high-signal insights. Still in beta, accuracy improves daily. For informational purposes only.

Competition

Rivals identification in progress

7-Day Rank Pulse 🇺🇸

Tools

No ranking data

Rating Pulse 🇺🇸

What makes this app unique?

What Does It Look Like?

How Is The App's Momentum Right Now?

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What Are The Key Features?

Check & Correct / ReplayStandard

Allows users to review and edit previous calculation steps.

Business CalculationsStandard

Includes dedicated functions for Price Mark-Up & Down and Tax calculations.

Memory and Constant CalculationStandard

Supports standard memory storage and constant math operations for repetitive tasks.

How much does it cost?

Free

Who Built It?

tasser gyati app icon 1
tasser gyati app icon 2
tasser gyati app icon 3
tasser gyati app icon 4

tasser gyati

(217.3K)

Providing accessible, specialized calculation tools for business, finance, and daily utility. Simplifying complex arithmetic for professionals and general users alike.

Portfolio

12

Apps

Free 8Paid 3
Tools36%
Productivity18%
Utilities18%

Who is tasser gyati?

The publisher has established a clear niche by digitizing the functionality of legacy desktop calculators, specifically targeting the 'running total' logic preferred by retail and accounting professionals. By focusing on high-utility, single-purpose tools rather than broad-spectrum productivity suites, they maintain a high degree of user retention within a crowded utility category. Their strategic focus remains on replicating the tactile, predictable experience of physical hardware, which serves as a functional moat against more complex, feature-bloated competitors.

Who is tasser gyati for?

  • Business professionals
  • Retail owners
  • Students requiring reliable
  • Traditional-style arithmetic
Intense

Portfolio momentum

Released 13 updates across 8 active apps in the last 6 months, indicating a highly active development cycle.

Last release · 54d agoActive apps · 8

Analysis in progress, available soon

What do users think recently?

Analysis in progress, available soon

Analysis in progress, available soon

What is the competitive landscape for CITIZEN Calculator?

How's The Tools Market?

Market outlook for this category

Available very soon

Strategic analysis coming soon

SWOT, key takeaways & outlook

The outtake for CITIZEN Calculator

Key Takeaways

This app serves as a digital recreation of the CITIZEN CT-555N, prioritizing functional parity with the classic hardware model.

Where Is It Heading?

Trend analysis

Available very soon

Disclosure

Independent intel to help builders create better apps.

AI-powered analysis with editorial review, built from publicly available sources. See methodology.

Marlvel.ai is not affiliated with, endorsed by, or sponsored by CITIZEN Calculator, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

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Cite this report

Marlvel.ai. “CITIZEN Calculator Intelligence Report.” Updated Apr 16, 2026. https://marlvel.ai/intel-report/tools/citizen-calculator

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