CalcMaster vs Study Clock Timer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CalcMaster
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CalcMaster is a math practice app for column arithmetic, times tables, and printable worksheets you can make yourself. Just like solving problems in a paper notebook, you write your working out on the handwriting canvas and enter the final answer with the on-screen keypad. It works smoothly with Apple Pencil or a finger, so practice can happen anywhere. [Great for anyone who wants to] Master carrying and borrowing in column arithmetic Memorize times tables in short, focused sessions Practice at their own pace without paper worksheets Build a steady daily math habit [Column Arithmetic] Practice addition, subtraction, multiplication, and division in classic vertical (column) format. The handwriting canvas features a grid-paper background and an optional column-alignment guide, ideal for learning to line up digits correctly. [Times Tables Master] Choose a specific table (1 through 9) for focused drill, or pick Mix mode to shuffle all 81 questions together. Streak counters, per-table completion dots, and gentle hints help keep motivation high. [Math Worksheets] Generate addition, subtraction, multiplication, and division problems as a PDF and print them as paper drills. Just pick the operations, format (equation or column), difficulty, number of digits, and pages to create your own custom worksheets — handy for homework and home study. [Units Master] A reference mode for units of length, volume, weight, area, and time, shown alongside a sense of real quantity so kids can grasp how units work intuitively. [Compare Master] A game-style quiz for comparing which number or quantity is larger, building a feel for numbers while having fun. [4-Level Difficulty System] Question difficulty automatically expands as you answer more correctly. Lv.1: 2-digit plus 1-digit basics Lv.4: 3-digit plus 3-digit challenges Smooth, achievable progression builds real confidence. [Records Screen] See today's question count, lifetime totals per operation, per-table progress for times tables, and a 7-day bar chart. Your effort is visualized, giving you a clear reason to come back tomorrow. [Instant Feedback] A satisfying animation greets every correct answer, while a gentle shake signals a miss. The app moves to the next question automatically, keeping practice quick and rhythmic. [Designed with Care] Optimized layouts for both iPhone and iPad Simple, distraction-free interface Progress is saved on-device and can be reset anytime Five minutes a day is all it takes to build math confidence. Start your daily practice habit with CalcMaster today.
Study Clock Timer
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Study Clock Timer is a gentle clock timer that helps you see how long you will study and when you can take a break. Instead of setting time only with numbers, you can move the clock hands and see study time and break time as colored areas on the clock. ■ Study time shown on a clock ・Shows the current time on an analog clock ・Set how many minutes to focus by moving the hand ・Shows study time and break time with colors inside the clock ■ Settings families can decide together ・Short starter settings for first-time users ・Recommended settings close to the classic Pomodoro technique ・Shows the flow of study, break, study, break, study, and a longer break ■ Progress history ・See study totals for today, the last 7 days, and this month ・Records are stored locally on the device Study Clock Timer uses simple wording and a friendly design so anyone can start small and keep going.
Screenshots
Verdict
The clearest difference is update cadence: Study Clock Timer at every 3 days against CalcMaster's every 9 days. On price, 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
Both are free to download. CalcMaster sells 1 one-off in-app purchase and Study Clock Timer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
CalcMaster ships an update every 9 days, Study Clock Timer every 3 days. The most recent releases landed on September 20, 2026 and September 18, 2026 respectively.
| Parameter | CalcMaster | Study Clock Timer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 days | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Yoshitaka Tanaka | Tatsuya Kawasaki |
In-app purchases
CalcMaster
- CalcMaster Full Pack$9.99
Study Clock Timer
- Buy me a drink$2.99
Questions
Is CalcMaster free?
Is Study Clock Timer free?
Do CalcMaster or Study Clock Timer have ads?
Which is updated more often, CalcMaster or Study Clock Timer?
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