Comparison

Study Timer & Time Tracker vs Stackd

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

Head to head
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.

About

Stackd

Features
Read full description

This is a simple study timer app that allows you to record and manage your study time by subject. Simply measure your time with the timer and save it. You can also log sessions manually or add entries for past dates. You can record everything together, including subjects, study materials, pages, and notes. You can view the big picture of your studies by checking your subject balance with weekly graphs and reviewing your progress streaks on the calendar. No ads, no social media features, and no account registration required. All data is saved on your device, so there are no privacy concerns. Perfect for anyone who wants to focus on learning, from exam preparation to certifications and language studies. [Main Features] - 3 timer modes (Stopwatch, Countdown, Pomodoro) - Management of subjects, materials, pages, and notes - Weekly graphs to check subject balance (bar chart & donut chart) - Calendar to visualize study days with color-coding - Display of consecutive study days (streaks) - Daily study reminder - Backup and data export functions [Stackd Pro (One-time purchase)] - Monthly graphs and cumulative line graphs - Setting weekly goals and checking achievement rates - 9 color themes - Home screen and lock screen widgets

Screenshots

Study Timer & Time Tracker3 screens
Stackd4 screens

Verdict

The call

The clearest difference is ads: Stackd at none against Study Timer & Time Tracker's shown. Study Timer & Time Tracker's advantage is update cadence (every 4 days vs fortnightly) and iOS requirement (16.6 vs 18). On price, 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

Both are free to download. Study Timer & Time Tracker sells 1 one-off in-app purchase and Stackd sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Study Timer & Time Tracker ships an update every 4 days, Stackd fortnightly. The most recent releases landed on September 29, 2026 and September 14, 2026 respectively.

Scorecard3 real differences · 7 level
Study Timer & Time Tracker versus Stackd: the parameters behind the verdict, then further details
ParameterStudy Timer & Time TrackerStackd
PriceFreeFree
Rating4.3 (25 ratings) — better—
Positive reviews80.0% of reviews—
Number of ratings25 — better—
Update frequencyEvery 4 days — betterFortnightly
AdsYesNo — better
In-app purchasesYesYes
MonetizationAd-supported—
DevicesiPhone, iPad — betteriPhone
Requires iOS16.6 — better18
Further details — not scored
Size35 MB3 MB
Age rating4+4+
DeveloperWEBDIA INC.Nene Nakagawa

In-app purchases

1 purchases

Study Timer & Time Tracker

One-time1
  • Remove Ads$2.99
1 purchases

Stackd

One-time1
  • Stackd Pro$1.99

Questions

Is Study Timer & Time Tracker free?
Study Timer & Time Tracker is free to download, with in-app purchases available.
Is Stackd free?
Stackd is free to download, with in-app purchases available.
Do Study Timer & Time Tracker or Stackd have ads?
Study Timer & Time Tracker shows ads; Stackd does not.
Which is updated more often, Study Timer & Time Tracker or Stackd?
Study Timer & Time Tracker ships an update every 4 days, and Stackd fortnightly. Most recently, Study Timer & Time Tracker was updated on September 29, 2026 and Stackd on September 14, 2026.

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