Comparison

StudyRecord vs Sum

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

Head to head
About

StudyRecord

Features
Read full description

StudyRecord is a study timer and learning log designed to help you build a consistent study habit. Instead of simply measuring time or recording sessions, StudyRecord lets you *see your progress*. By visualizing your effort and achievements, it encourages you to take the next step and keep going. --- ■ Focus with the study timer Start studying with a large, easy-to-read timer and simple controls. When you feel unmotivated but want to begin, StudyRecord becomes the gateway to focus. --- ■ Visualize your progress Your study time is automatically recorded and visualized through weekly charts and monthly heatmaps. See how much you studied today and which days you stayed consistent. Your effort becomes visible data, helping you build a lasting study habit. --- ■ Unlock achievements Achievements are unlocked as you reach study milestones and complete challenges. Level up and track your growth as you continue learning. The more you study, the more titles and achievements you earn. --- ■ Share your progress Share your study graphs and achievements with friends or on social media. Visualizing your effort makes it easier to stay motivated and accountable. --- ■ Optional account sync You can optionally register your email to sync your study data across multiple devices. Even if you switch devices, your learning history stays with you. Registration is optional and the core features are available without it. --- ■ Inspirational quotes Short quotes appear before or during study sessions to gently motivate you. They are designed to quietly encourage you, even on days when motivation is low.

About

Sum

Track and manage your study time by subject with a simple timer. Log sessions, add notes, and visualize your progress with weekly graphs and a calendar. Focus on learning without distractions.

Highlights
  • Study time tracking
  • Subject and material logging
  • Weekly progress graphs
  • Calendar visualization
  • Study streaks
  • Pomodoro timer
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 - Real-time timer display on the Lock Screen

Screenshots

StudyRecord4 screens
Sum4 screens

Verdict

The call

The clearest difference is ads: Sum at none against StudyRecord's shown. StudyRecord's advantage is iOS requirement (16.4 vs 18). On price, 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

Both are free to download. StudyRecord sells 1 one-off in-app purchase and Sum sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

StudyRecord ships an update every 2 weeks, Sum every 3 weeks. The most recent releases landed on November 13, 2026 and November 9, 2026 respectively.

Scorecard2 real differences · 8 level
StudyRecord versus Sum: the parameters behind the verdict, then further details
ParameterStudyRecordSum
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 2 weeks — betterEvery 3 weeks
AdsYesNo — better
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad — betteriPhone
Requires iOS16.4 — better18
Further details — not scored
Size60 MB3 MB
Age rating4+4+
DeveloperYusuke HirotaNene Nakagawa

In-app purchases

1 purchases

StudyRecord

One-time1
  • プレミアム(買い切り)$2.99
1 purchases

Sum

One-time1
  • Stackd Pro$1.99

Questions

Is StudyRecord free?
StudyRecord is free to download, with in-app purchases available.
Is Sum free?
Sum is free to download, with in-app purchases available.
Do StudyRecord or Sum have ads?
StudyRecord shows ads; Sum does not.
Which is updated more often, StudyRecord or Sum?
StudyRecord ships an update every 2 weeks, and Sum every 3 weeks. Most recently, StudyRecord was updated on November 13, 2026 and Sum on November 9, 2026.

Other comparisons