Math Keeper+

Math Keeper+

By William Wu

Math Keeper+ is an offline reference app for high school math formulas and calculations on iOS.

The App DNA

What makes this app unique?

The app removes the need for internet connectivity when accessing standard mathematical formulas, serving users who prefer a lightweight, static reference tool over modern, cloud-dependent alternatives.

For High school students and individuals seeking a quick reference tool for mathematical formulas.

What does it look like?

Key features

Formula Reference Librarystandard

Collection of over 100 high school math formulas for quick review.

Custom Notes and Editingedge

User-editable fields to modify existing formulas or add personal notes.

Integrated Calculatorstandard

Built-in calculator accessible via swipe gesture.

How much does it cost?

freeFree access to all features

Math Keeper+ is distributed as a free utility without visible monetization gates or subscription tiers.

Velocity

Dormant developmentopaqueShow more...

Math Keeper+ has been inactive for 3,239 days, showing no signs of development or maintenance. The app has not received a single update since its initial release, indicating it is no longer supported by the developer. There is no evidence of ongoing feature work or bug fixes.

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Who built it?

William Wu

1 app tracked · Education

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User Sentiment

What do users think recently?

Fresh user feedback skews thrilled. Users appreciate the application provides significant health benefits that users describe as miraculous for their specific medical conditions.

How are ratings & reviews evolving?

App Store
5.00 · 2

What users say, by theme

What Users Love
  • The application provides significant health benefits that users describe as miraculous for their specific medical conditions

1 of 1 recent reviews analyzed · limited sample

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Competition

Competitive landscape for Math Keeper+

How's the Education market?

Math Keeper+ maintains a 5-star rating based on two reviews, positioning itself as a niche, static utility in the Education category. The lack of updates since 2017 indicates a mature, maintenance-only lifecycle that avoids the monetization friction found in modern, subscription-based educational apps.

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The rivals identified

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The Analyst's Read

Key takeaways for Math Keeper+

Where is it heading?

The education category is consolidating around interactive, cloud-connected platforms, leaving static reference tools like Math Keeper+ in a niche, legacy position. Continued silence in the release cycle will likely lead to a slow decline in discoverability as OS requirements evolve beyond the app's 2017 codebase.

  • The eight-year development gap indicates a maintenance-only posture, which limits the app's ability to capture new market share in the education category.

The SWOT

Core Strengths
  • Offline-first architecture removes connectivity dependencies
Critical Frictions 1 weakness inside
Growth Levers
  • Modernizing the UI could attract users seeking non-subscription alternatives
Market Threats 1 threat identified

Next best moves

1 Maintain

Audit compatibility with current iOS versions because the app has not been updated since 2017 → prevent potential crashes on newer hardware

The counter-intuitive read

The app's lack of updates is its primary feature…

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Bottom line

Math Keeper+ provides a stable, offline reference tool, but the eight-year development silence prevents it from scaling against active educational competitors.

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FAQ

Is Math Keeper+ free to use?
Yes, Math Keeper+ is currently distributed as a free utility with no visible monetization gates or subscription tiers.
Does Math Keeper+ work without an internet connection?
Yes, Math Keeper+ is designed as an offline-first reference app, allowing access to formulas and the calculator without requiring a network connection.
What is a free alternative to Math Keeper+?
Users seeking more active development might consider modern educational apps that offer interactive learning, though many of these may include subscription-based monetization.

Sources

  1. [1] App Store, source

Report last updated

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Math Keeper+, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “Math Keeper+ Intelligence Report.” Updated Sep 14, 2026. https://marlvel.ai/apps/math-keeper

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