Expoll vs Calccis
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Expoll
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Expoll is a voting website similar to other woll-known voting/polling websites. We tried to combine both in a neat small and easy-to-use website. Unlike the well-known platforms, who delete polls after a quite short time, or where you have to be logged in with an active session to even get the chance to vote for something withing a few minutes, we are trying to keep every vote possible (though probably have to restrict the creation of polls to about 5-10 per user at a time in the future).
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 in-app purchases: Calccis at none against Expoll's 4. Calccis also leads on update cadence (every 3 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Expoll sells 4 one-off in-app purchases. Calccis asks for nothing beyond the download.
Expoll ships an update every 2 months, Calccis every 3 weeks. The most recent releases landed on September 18, 2026 and September 12, 2026 respectively.
| Parameter | Expoll | Calccis |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 3 weeks โ better |
| Ads | No | No |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.4 โ better | 17.6 |
| Further details โ not scored | ||
| Size | 7 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Tom Arlt | Jukka Aittola |
In-app purchases
Expoll
- Coffebreak for Developer$0.99
- Developer Cake Break$2.99
- A whole cake as donation$9.99
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- Very generous Donation$19.99
Calccis
No in-app purchases









