Comparison

学校行事 vs Simple Logarithm PRO

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

Head to head
About

学校行事

Features
Read full description

このアプリは、お子様の学校行事の予定を記録し、行事の日時、場所、事前準備、父兄との連絡や情報共有、カレンダーへの登録ができます。 また、アプリは、お子様のいじめに関するチェックリストを文部科学省や、各自治体が公開しているチェックリストから抜粋しています。 ご家庭で、気が付く項目と、学校で起きている項目と分けて定期的にチェックします。 学校での様子は、お子様の友達を交えて質問してみるのもいいかと思います。 少しでも、気になることが見つかった場合は、学校や教育委員会に相談しましょう。

About

Simple Logarithm PRO

This app simplifies complex logarithm and exponentiation calculations with step-by-step solutions. It supports various input types, including decimals, fractions, and negative values, and provides a history of all calculations.

Highlights
  • Logarithm and exponentiation modes
  • Step-by-step solution display
  • Support for decimals, fractions, and negative values
  • Calculation history
  • Transformation between logarithm and exponentiation
  • Logarithm rules infographic
  • Solution sharing
Features
Read full description

Using logarithm is a complicated task, but this app helps out! You can choose between 4 standard shapes of this topic. Then you can enter what you have to calculate what you need - base, exponent, antilogarithm, the logarithmic result, even the x-value of a term as exponent. The connection between logarithm and exponentiation is shown aswell. An infographic gives a deeper insight into some calculation rules of the logarithm. Decimals, fractions and negative values are supported. The solution is shown step by step. All calculations are stored in the history. The final solution can be shared. [ Contents ] - modes for logarithm - modes for exponentiation - exponent, base and some more values can be entered - results are calculated and shown in detail - transformations between logarithm and exponentiation are taken into account - shortened list of logarithm rules - history function to save the input - detailed solution - negative values, decimal numbers and fractions are supported - no ads! [ Usage ] - there are fields for entering values using a special keyboard - press the check mark button at the bottom right to start the calculation - if values are missing, the relevant field is highlighted in yellow - if the values are wrong, the affected field will be highlighted in red - the entries in the history can be deleted or sorted - if you select an entry in the history, it will be automatically loaded for the calculation - the whole history can be deleted by pressing a button - solutions can be shared - touching the question mark button displays information about the topic

Screenshots

学校行事4 screens
Simple Logarithm PRO4 screens

Verdict

The call

The clearest difference is price: 学校行事 at Free against Simple Logarithm PRO's $1.99. Simple Logarithm PRO's advantage is update cadence (monthly vs every 28 months) and iOS requirement (15.0 vs 26.0). 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

学校行事 is free to download; Simple Logarithm PRO costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

学校行事 ships an update every 28 months, Simple Logarithm PRO monthly. Both last shipped on November 3, 2026.

Scorecard3 real differences · 5 level
学校行事 versus Simple Logarithm PRO: the parameters behind the verdict, then further details
Parameter学校行事Simple Logarithm PRO
PriceFree — better$1.99
Positive reviews—0.0% of reviews
Update frequencyEvery 28 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.015.0 — better
Further details — not scored
Size3 MB180 MB
Age rating17+4+
DeveloperSatoshi SatoGlindemann, Sennoun, Langer GbR

In-app purchases

None

学校行事

No in-app purchases

None

Simple Logarithm PRO

No in-app purchases

Questions

Is 学校行事 free?
学校行事 is free to download, with no in-app purchases.
Is Simple Logarithm PRO free?
Simple Logarithm PRO costs $1.99, with no in-app purchases.
Do 学校行事 or Simple Logarithm PRO have ads?
Neither 学校行事 nor Simple Logarithm PRO shows ads.
Which is updated more often, 学校行事 or Simple Logarithm PRO?
学校行事 ships an update every 28 months, and Simple Logarithm PRO monthly. Most recently, 学校行事 was updated on November 3, 2026 and Simple Logarithm PRO on November 3, 2026.

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