Comparison

学習時間積算計 vs Study Timer & Time Tracker

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

Head to head
About

学習時間積算計

Features
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文法、演習、単語、シャドウイング等々の各項目を何分勉強したかを「積算」するアプリです。 積算タイマーには、リアルタイムの日時(年・月・日・曜日)と時間(時・分・秒)が表示されます。 ・経過(積算)時間は「START」ボタンを押すと開始され、押すごとに「START」と「PAUSE」が表示され「PAUSE」表示されているときは経過(積算)時間は停止しています。経過(積算)時間をリセットするには「CLR」ボタンを押します。 ・勉強(練習)の項目は4つあり、各項目名は自分で入力します。変更・編集が可能です。 ・各項目には「積算時間」の表示と積算時間の追加、置換、CLRの3つのボタンがあります。「追加」ボタンは表示されている積算時間にタイマーの時間がプラスされ「置換」ボタンは表示されている積算時間をタイマーの時間に入れ替え「CLR」ボタンは積算時間をリセットします。 ・下段の「記録」ボタンを押すと」記録ページに移動します。 ・記録ページには記録場所が5つあり、各番号の「#」ボタンを押すと「積算タイマー」ページの項目4つの表示が「日時時間、各項目の積算時間、各項目名」が表示されます。・下段にある「データ保存」ボタンを押すと、アプリを停止した後も「データ読出」ボタンで再表示することができます。

About

Study Timer & Time Tracker

Easily track your daily study sessions and visualize your progress with detailed history charts. This app helps you identify subjects needing more attention, encouraging balanced learning for improved academic performance.

Highlights
  • Record study time by subject
  • Register and manage subjects
  • View study history with graphs
  • Visualize time spent on weak subjects
  • Ad-supported free usage
Read full description

This is an app that allows you to record study time and check the history with pie charts and stacked bar graphs. - Counting study time The app counts. Select a subject, set the study time, and count to record study time. If you close the app or perform other operations while studying, the count will be interrupted. - Register subjects By registering subjects, you can record which subjects you studied. By recording each subject, you can understand which subjects you do not have enough study time. - Study history Displays daily study time in a stacked bar graph. Recheck your study time by looking at your past history. If you do not have enough study time, make sure to set aside time for studying. - Advertisement This app is free to use, but ads are displayed. To avoid interrupting your studies, ads are displayed only after the countdown is completed so as not to break your concentration. - Purpose of this app This app was created for children who tend to study only in the subjects they are good at. The study time for subjects you are weak at tends to be short. By visualizing the time you study, you can understand the lack of study time for subjects you are weak at. I hope this will lead to improved grades for everyone.

Screenshots

学習時間積算計3 screens
Study Timer & Time Tracker3 screens

Verdict

The call

The clearest difference is rating: 学習時間積算計 at 5.0 against Study Timer & Time Tracker's 4.3. 学習時間積算計 also leads on in-app purchases (none vs 1) and ads (none vs shown). Study Timer & Time Tracker's advantage is update cadence (every 4 days vs every 51 months) and ratings volume (25 vs 1). On price 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

Both are free to download. Study Timer & Time Tracker sells 1 one-off in-app purchase. 学習時間積算計 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

学習時間積算計 holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Study Timer & Time Tracker has 25 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

学習時間積算計 ships an update every 51 months, Study Timer & Time Tracker every 4 days. The most recent releases landed on June 1, 2026 and September 24, 2026 respectively.

Scorecard6 real differences · 4 level
学習時間積算計 versus Study Timer & Time Tracker: the parameters behind the verdict, then further details
Parameter学習時間積算計Study Timer & Time Tracker
PriceFreeFree
Rating5.0 (1 ratings) — better4.3 (25 ratings)
Positive reviews—80.0% of reviews
Number of ratings125 — better
Update frequencyEvery 51 monthsEvery 4 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Ad-supported
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better16.6
Further details — not scored
Size108 MB35 MB
Age rating4+4+
Developermasaki murayamaWEBDIA INC.

Customer experience

学習時間積算計

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Study Timer & Time Tracker

All ratings25 ratings
Positive80.0%
Neutral8.0%
Negative12.0%
Written reviews45 reviews
Positive80.0%
Neutral11.1%
Negative8.9%

In-app purchases

None

学習時間積算計

No in-app purchases

1 purchases

Study Timer & Time Tracker

One-time1
  • Remove Ads$2.99

Questions

Is 学習時間積算計 free?
学習時間積算計 is free to download, with no in-app purchases.
Is Study Timer & Time Tracker free?
Study Timer & Time Tracker is free to download, with in-app purchases available.
Which has better reviews, 学習時間積算計 or Study Timer & Time Tracker?
学習時間積算計 is rated higher. 学習時間積算計 averages 5.0 out of 5 from 1 ratings, while Study Timer & Time Tracker averages 4.3 from 25 ratings.
Do 学習時間積算計 or Study Timer & Time Tracker have ads?
Study Timer & Time Tracker shows ads; 学習時間積算計 does not.
Which is updated more often, 学習時間積算計 or Study Timer & Time Tracker?
学習時間積算計 ships an update every 51 months, and Study Timer & Time Tracker every 4 days. Most recently, 学習時間積算計 was updated on June 1, 2026 and Study Timer & Time Tracker on September 24, 2026.

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