# Kalkulators vs Encouraging calculator

The clearest difference is in-app purchases: Encouraging calculator at none against Kalkulators's 1. Encouraging calculator also leads on update cadence (every 2 weeks vs every 9 months). Kalkulators's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Kalkulators sells 1 one-off in-app purchase. Encouraging calculator asks for nothing beyond the download.

Kalkulators ships an update every 9 months, Encouraging calculator every 2 weeks. The most recent releases landed on October 8, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Kalkulators | Encouraging calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/kalkulators/id761590320/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 21 MB | 36 MB |
| Requires iOS | **15.0** | 15.8.3 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [iPinsoft](https://appshunter.io/developer/344616291) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### Kalkulators

[App page](https://appshunter.io/ios/app/kalkulators/id761590320)

This app allows for complex calculations using numbers, operators, and variables. It offers multiple calculator instances and theme customization. Advanced mathematical functions and extended limits are available via in-app purchase.

**Highlights:** Expression input with operators and parentheses, Real-time calculation as you type, Variable support for dynamic calculations, Multiple calculator instances, Customizable themes (light/dark), User-defined precision

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kalkulators Pro | $0.99 | one-time |


### Encouraging calculator

[App page](https://appshunter.io/ios/app/encouraging-calculator/id6502799928)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Kalkulators free?

Kalkulators is free to download, with in-app purchases available.

### Is Encouraging calculator free?

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

### Do Kalkulators or Encouraging calculator have ads?

Encouraging calculator shows ads; Kalkulators does not.

### Which is updated more often, Kalkulators or Encouraging calculator?

Kalkulators ships an update every 9 months, and Encouraging calculator every 2 weeks. Most recently, Kalkulators was updated on October 8, 2026 and Encouraging calculator on October 27, 2026.

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