Comparison

CalcMaster vs Study Clock Timer

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

Head to head
About

CalcMaster

Features
Read full description

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.

About

Study Clock Timer

Features
Read full description

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

CalcMaster4 screens
Study Clock Timer3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard1 real difference · 5 level
CalcMaster versus Study Clock Timer: the parameters behind the verdict, then further details
ParameterCalcMasterStudy Clock Timer
PriceFreeFree
Update frequencyEvery 9 daysEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.017.0 — better
Further details — not scored
Size15 MB5 MB
Age rating4+4+
DeveloperYoshitaka TanakaTatsuya Kawasaki

In-app purchases

1 purchases

CalcMaster

One-time1
  • CalcMaster Full Pack$9.99
1 purchases

Study Clock Timer

One-time1
  • Buy me a drink$2.99

Questions

Is CalcMaster free?
CalcMaster is free to download, with in-app purchases available.
Is Study Clock Timer free?
Study Clock Timer is free to download, with in-app purchases available.
Do CalcMaster or Study Clock Timer have ads?
Neither CalcMaster nor Study Clock Timer shows ads.
Which is updated more often, CalcMaster or Study Clock Timer?
CalcMaster ships an update every 9 days, and Study Clock Timer every 3 days. Most recently, CalcMaster was updated on September 20, 2026 and Study Clock Timer on September 18, 2026.

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