A Complex Calc vs Calccis
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
A Complex Calc
Perform complex calculations with a modern, user-friendly interface. Offers both basic and scientific modes, including support for complex numbers and advanced functions. This lightweight application provides a history of computations and is completely free with no advertisements.
- Complex number support
- Basic and Scientific modes
- History of operations
- Trigonometric and hyperbolic functions
- Random number generation
- Lightweight app size
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A Complex Calc is built for fast complex-number work without losing the tools you need for serious math. Use scientific functions quickly and check floating-point results in rectangular and polar form. Reuse past results from history, work with built-in constants, and keep advanced tools close while solving everyday and technical calculations.
Calccis
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Calccis is a reverse polish notation (RPN) calculator. It supports basic arithmetic, trigonometrical, logarithm and exponent calculations for real, fractional, and complex numbers. Degrees and radians can be used for trigonometrical functions. You can perform matrix calculations, too. There is an undo stack, which supports undoing and redoing the 100 latest operations. Calccis does not copy or mimic any existing physical calculators. However, the operation of the stack has been influenced by how the stack works in the 1990s Hewlett-Packard HP-48 family of calculators.
Screenshots
Verdict
The clearest difference is iOS requirement: A Complex Calc at 10.0 against Calccis's 17.6. On price, update cadence, ads and in-app purchases 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.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 29, 2026 and September 12, 2026 respectively.
| Parameter | A Complex Calc | Calccis |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (23 ratings) — better | — |
| Positive reviews | 80.0% of reviews | — |
| Number of ratings | 23 — better | — |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 10.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 28 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Antonio Ruffolo | Jukka Aittola |
In-app purchases
A Complex Calc
No in-app purchases
Calccis
No in-app purchases
Questions
Is A Complex Calc free?
Is Calccis free?
Do A Complex Calc or Calccis have ads?
Which is updated more often, A Complex Calc or Calccis?
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