# Citizen Calculator App vs CRES B

The clearest difference is in-app purchases: CRES B at none against Citizen Calculator App's 4. Citizen Calculator App's advantage is update cadence (monthly vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Citizen Calculator App sells 4 in-app purchases, starting at $0.99 per 7 days. CRES B asks for nothing beyond the download.

Citizen Calculator App ships an update monthly, CRES B every 5 months. The most recent releases landed on November 11, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Citizen Calculator App | CRES B |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (355 ratings)](https://appshunter.io/ios/app/citizen-calculator-app/id1541602534/reviews)** | — |
| Number of ratings | **355** | — |
| Positive reviews | 71.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 months |
| Monetization | Freemium | — |
| Size | 26 MB | 20 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Devkrushna Infotech Private Limited](https://appshunter.io/developer/1491441074) | [VegaSRL](https://appshunter.io/developer/1638287422) |

## What reviewers say

### Citizen Calculator App

[App page](https://appshunter.io/ios/app/citizen-calculator-app/id1541602534)

This app offers a comprehensive calculator with standard arithmetic functions, business-specific calculations like GST, and advanced features. Enjoy a realistic calculator experience with tactile feedback and a clean interface.

**Highlights:** GST Calculator, Basic math operations, Business and financial functions (M+, M-, MU, GT), Realistic calculator feel with sound and vibration, Clear and backspace buttons, Display operator symbols

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Citizen Pro Weekly | $0.99 | per 7 days |
| Monthly Premium | $0.99 | per month |
| Citizen Pro Yearly | $2.99 | per year |
| Remove Ads forever | $4.99 | one-time |


### CRES B

[App page](https://appshunter.io/ios/app/cres-b-tool/id6749270322)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Citizen Calculator App free?

Citizen Calculator App is free to download, with in-app purchases available.

### Is CRES B free?

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

### Do Citizen Calculator App or CRES B have ads?

Neither Citizen Calculator App nor CRES B shows ads.

### Which is updated more often, Citizen Calculator App or CRES B?

Citizen Calculator App ships an update monthly, and CRES B every 5 months. Most recently, Citizen Calculator App was updated on November 11, 2026 and CRES B on November 5, 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.*