# PractiCalc2 vs Showa100

The clearest difference is price: Showa100 at Free against PractiCalc2's $1.99. PractiCalc2's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 48 months). On in-app purchases and device support there is nothing between them.

Showa100 is free to download; PractiCalc2 costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

PractiCalc2 ships an update every 3 weeks, Showa100 every 48 months. Both last shipped on September 21, 2026.

## The numbers

| Metric | PractiCalc2 | Showa100 |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 48 months |
| Monetization | Paid | — |
| Size | 5 MB | 5 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tsutomu Nagai](https://appshunter.io/developer/1137546239) | [kaitekidigital Inc.](https://appshunter.io/developer/1305009205) |

## What reviewers say

### PractiCalc2

[App page](https://appshunter.io/ios/app/practicalc2/id1502884244)

A practical and advanced calculator app with memory, grand total, and constant calculation functions. Ideal for accounting, bookkeeping, and tax studies. Supports iOS 13+ and offers customizable display and themes.

**Highlights:** 12-digit large display, Memory and Grand Total functions, Constant calculation, Two tax rates with customizable values, Rounding and decimal selectors, iOS Dark Mode support, 10 color themes

**Features:** Vision Pro support

**In-app purchases:** none


### Showa100

[App page](https://appshunter.io/ios/app/showa100/id1579491974)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PractiCalc2 free?

PractiCalc2 costs $1.99, with no in-app purchases.

### Is Showa100 free?

Showa100 is free to download, with no in-app purchases.

### Do PractiCalc2 or Showa100 have ads?

Showa100 shows ads; PractiCalc2 does not.

### Which is updated more often, PractiCalc2 or Showa100?

PractiCalc2 ships an update every 3 weeks, and Showa100 every 48 months. Most recently, PractiCalc2 was updated on September 21, 2026 and Showa100 on September 21, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*