Comparison

メモモ vs Math Simply

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

Head to head
About

メモモ

Features
Read full description

『全国の人に使われている』、操作が簡単なメモアプリです! チェック機能がついているので、 買う物メモ、タスク管理、持ち物確認などに利用できます。 チェックがついていないものを一覧で確認することもできます。

About

Math Simply

This app offers a simple, ad-free calculator with a home screen widget for quick calculations. It also includes a comprehensive unit converter and extensive personalization options. Future updates are included with a one-time purchase.

Highlights
  • Home screen widget calculator
  • Unit converter (100+ units)
  • Cache memory function
  • User-friendly hints
  • Global localization
  • Personalization options
  • One-time purchase for life
Features
Read full description

NO Advertising, Math Simply is an easy-to-use calculator with a minimalist design that allows users to place the calculator on the Home Screen of their iOS or macOS device to perform calculations directly without opening the app itself. The widget calculator has an almost identical calculation experience to the main APP. Version 2.0.0 introduces a brand-new unit converter feature, offering conversions for over 100 units across 10 categories, with more content to be added in future updates. It has the following features: 1. Easy-to-use interface – has the same design interface as the traditional calculator, simple and clear. 2. Has almost the same widget calculation experience as the main program (the widget calculator only lacks the cache memory function). 3. Adopts the cache memory function and provides four cache operation buttons, which is convenient for diversified calculations. 4. User-friendly hints – hints for “Previous Result”, “current operator” and operation status during calculations. 5. Global Localization – Math Simply not only supports 12 languages, but also provides globalization support, whether you are used to using “.” or “,” as a decimal point, or “,” or “‘” as a thousands separator, Math Simply adapts to your needs in real time. 6. Personalization – For display modes, button vibration, button shapes and colors, and even display fonts, Math Simply offers adjustments to provide a variety of personalized settings. 7. Unit Converter - Quick and intuitive unit conversions, with customizable precision control. 8. Future Upgrades – Math Simply is a one-time purchase and download for life, with access to all future upgrades (including more convenient calculation features). Math Simply currently supports all iPhone and iPad devices with iOS 17 installed. In addition, thanks to the characteristics of the M series chips, Mac with Apple Silicon chips can also install this app and use the Widget Calculator function. In the near future, Math Simply will also add more convenient features, aiming to help users calculate more conveniently. Thank you for your support!

Screenshots

メモモ3 screens
Math Simply4 screens

Verdict

The call

The clearest difference is price: メモモ at Free against Math Simply's $1.99. メモモ also leads on iOS requirement (15.6 vs 17.0). Math Simply's advantage is ads (none vs shown). On update cadence, 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

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

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

Scorecard3 real differences · 5 level
メモモ versus Math Simply: the parameters behind the verdict, then further details
ParameterメモモMath Simply
PriceFree — better$1.99
Positive reviews—100.0% of reviews
Update frequencyEvery 2 monthsEvery 2 months
AdsYesNo — better
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better17.0
Further details — not scored
Size17 MB4 MB
Age rating4+4+
DeveloperOoguchi System振捷 周

In-app purchases

None

メモモ

No in-app purchases

None

Math Simply

No in-app purchases

Questions

Is メモモ free?
メモモ is free to download, with no in-app purchases.
Is Math Simply free?
Math Simply costs $1.99, with no in-app purchases.
Do メモモ or Math Simply have ads?
メモモ shows ads; Math Simply does not.
Which is updated more often, メモモ or Math Simply?
メモモ ships an update every 2 months, and Math Simply every 2 months. Most recently, メモモ was updated on November 7, 2026 and Math Simply on November 3, 2026.

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