CalcKit vs X CalcKits
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CalcKit
Design and build your own custom calculators with personalized formulas and input labels. Organize them into groups for easy access. Ideal for students, scientists, and engineers needing more than standard calculator functions.
- Design calculators with custom formulas
- Up to seven user-defined variables
- Built-in trig and math functions
- Organize calculators into groups
- Unlimited personal calculator creation
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CalcKit lets you create your own personalized calculators. With CalcKit you can: - Design calculators using your own formulas and input labels - Enter formulas with up to seven user-defined variables - Make use of built-in trig and other math functions - Organize your calculators into convenient groups CalcKit has a simple, intuitive interface, and it comes with a set of example calculators to get you started. You can create an unlimited number of personal calculators. Each formula can be as simple or as complex as you need. CalcKit is ideal for students, scientists, engineers and others who do everyday calculations and need more than a limited set of canned formulas.
X CalcKits
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This newly developed multi-functional calculator breaks the limitations of traditional calculators that only support basic four arithmetic operations. It integrates a full range of practical functions including scientific calculation, unit conversion, numeral system conversion, mortgage/personal income tax estimation, and real-time exchange rate calculation.
Screenshots
Verdict
The clearest difference is ads: CalcKit at none against X CalcKits's shown. X CalcKits's advantage is update cadence (every 4 months vs every 30 months) and iOS requirement (13.0 vs 15.6). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
CalcKit ships an update every 30 months, X CalcKits every 4 months. Both last shipped on October 10, 2026.
| Parameter | CalcKit | X CalcKits |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 80.0% of reviews | — |
| Update frequency | Every 30 months | Every 4 months — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 0 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | Akkyra Systems | Singxi Limited |
In-app purchases
CalcKit
No in-app purchases
X CalcKits
No in-app purchases
