1000digit Calc vs Math Sphere
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
1000digit Calc
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This is a calculator that can perform four arithmetic operations on integers up to about 1,000 digits. You can use parentheses in formulas, so you can calculate in the same order as in the formula. Calculation results are saved to the clipboard each time, so they can be reused in other applications.
Math Sphere
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Math Sphere is a smart, user-friendly calculator app that handles everything from everyday basic math to the complex functions you need for school or work. Its clean, simple design makes it easy for anyone, from students to adults, to use intuitively and makes even the toughest calculations feel approachable.
Screenshots
Verdict
The clearest difference is update cadence: 1000digit Calc at weekly against Math Sphere's every 3 weeks. Math Sphere's advantage is iOS requirement (13.0 vs 15.0). 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. Neither carries in-app purchases, so what you see is what you pay.
1000digit Calc ships an update weekly, Math Sphere every 3 weeks. The most recent releases landed on October 1, 2026 and October 8, 2026 respectively.
| Parameter | 1000digit Calc | Math Sphere |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Yukihiro Shioya | otsuki hayato |
In-app purchases
1000digit Calc
No in-app purchases
Math Sphere
No in-app purchases
Questions
Is 1000digit Calc free?
Is Math Sphere free?
Do 1000digit Calc or Math Sphere have ads?
Which is updated more often, 1000digit Calc or Math Sphere?
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