Comparison

Math Keeper+ vs Chromatography

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

Head to head
About

Math Keeper+

This app serves as a quick reference for high school math formulas, allowing users to review concepts or add their own notes and formulas. It includes a built-in calculator for convenience.

Highlights
  • Over 100 math formulas
  • Edit existing formulas
  • Add custom formulas
  • Write notes
  • Built-in calculator
Features
Read full description

Math Keeper is a handy reference app for anyone who would like a refreshment of their memory about high school math, or perhaps anyone who would like a refreshment of their memory about what they were supposed to have learned in class yesterday. If you identify with either, you have come to the right place. The app includes over 100 math formulas for a quick jog of the memory, and you are able to edit them, write notes, and add your own if you so desire. A calculator is also built in for convenience, just one swipe away. Good luck.

About

Chromatography

Features
Read full description

Dive into the fascinating world of Chromatography with this comprehensive and interactive app designed to simplify the understanding of this essential scientific technique. Chromatography, a method for separating mixtures, plays a crucial role in laboratories and industries worldwide. Whether you’re a student, teacher, or professional, our app provides an in-depth look at the different types of chromatography, including paper, thin-layer, gas, and liquid chromatography, in an engaging, easy-to-understand format. App Features: User-Friendly Interface: Navigate through the app effortlessly with a clean and intuitive design. Languages Supported: Available in English to cater to a global audience. Zoom In and Zoom Out Model: Explore detailed visuals of chromatographic processes and equipment with adjustable zoom functionality. Rotate in 3D Model: Interact with 3D models of chromatographic setups, rotating them for a complete understanding of the structures and mechanisms. Audio Pronunciation for All Parts: Improve your scientific vocabulary with correct pronunciations of all components and terminology used in chromatography. No Internet Connection Needed: Access all content and features offline, making it convenient for use anytime, anywhere. Enhance your knowledge and grasp the intricacies of chromatography with this interactive and educational app!

Screenshots

Math Keeper+3 screens
Chromatography4 screens

Verdict

The call

The clearest difference is price: Math Keeper+ at Free against Chromatography's $1.99. Math Keeper+ also leads on update cadence (every 3 months vs every 41 months) and iOS requirement (9.0 vs 11.0). On ads, in-app purchases 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

Math Keeper+ is free to download; Chromatography costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Math Keeper+ ships an update every 3 months, Chromatography every 41 months. The most recent releases landed on October 1, 2026 and October 3, 2026 respectively.

Scorecard3 real differences · 7 level
Math Keeper+ versus Chromatography: the parameters behind the verdict, then further details
ParameterMath Keeper+Chromatography
PriceFree — better$1.99
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 3 months — betterEvery 41 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS9.0 — better11.0
Further details — not scored
Size9 MB75 MB
Age rating4+4+
DeveloperWilliam WuVIRTUAL FILAMENTS PRIVATE LIMITED

In-app purchases

None

Math Keeper+

No in-app purchases

None

Chromatography

No in-app purchases

Questions

Is Math Keeper+ free?
Math Keeper+ is free to download, with no in-app purchases.
Is Chromatography free?
Chromatography costs $1.99, with no in-app purchases.
Do Math Keeper+ or Chromatography have ads?
Neither Math Keeper+ nor Chromatography shows ads.
Which is updated more often, Math Keeper+ or Chromatography?
Math Keeper+ ships an update every 3 months, and Chromatography every 41 months. Most recently, Math Keeper+ was updated on October 1, 2026 and Chromatography on October 3, 2026.

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