# Regnum Christi vs Calculator for iPad +

The clearest difference is rating: Regnum Christi at 5.0 against Calculator for iPad +'s 4.3. Regnum Christi also leads on in-app purchases (none vs 2) and ads (none vs shown). Calculator for iPad +'s advantage is update cadence (every 4 weeks vs every 7 months) and ratings volume (3.6K vs 2). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Calculator for iPad + sells 2 in-app purchases, starting at $2.99 per month. Regnum Christi asks for nothing beyond the download.

Regnum Christi holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Calculator for iPad + has 3.6K ratings behind it against 2, so its average is the more settled of the two.

Regnum Christi ships an update every 7 months, Calculator for iPad + every 4 weeks. The most recent releases landed on August 17, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Regnum Christi | Calculator for iPad + |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/regnum-christi/id1114515862/reviews)** | [4.3 (3.6K ratings)](https://appshunter.io/ios/app/calculator-for-ipad-plus/id1288059768/reviews) |
| Number of ratings | 2 | **3.6K** |
| Positive reviews | — | 55.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Every 4 weeks** |
| Monetization | **Free** | Subscription |
| Size | 10 MB | 19 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | **iPhone, iPad** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Regnum-Christi-Initiativen e.V.](https://appshunter.io/developer/1114515861) | [Beijing Free Calculator Technology Co., Ltd.](https://appshunter.io/developer/1457813265) |

## What reviewers say

### Regnum Christi

[App page](https://appshunter.io/ios/app/regnum-christi/id1114515862)

This app connects users with the Regnum Christi Federation in German-speaking regions, including the Legionaries of Christ. It offers news, event information, and prayer resources for those interested in engaging with the community.

**Highlights:** Latest articles, Regnum Christi prayer book, Daily meditations, Online event calendar, Media library

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

**In-app purchases:** none


### Calculator for iPad +

[App page](https://appshunter.io/ios/app/calculator-for-ipad-plus/id1288059768)

This app offers a scientific calculator experience designed for iPads. It provides unlimited access to all content and features through a monthly subscription. Pricing may vary by region, and subscriptions can be managed through account settings.

**Highlights:** Scientific calculator functionality, Unlimited access to content, iPad optimized interface, Subscription management, Auto-renewing subscription option

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly VIP | $2.99 | per month |
| Calculator permanent purchase | $9.99 | one-time |

**What reviewers like**

- 👍 Functional and easy to use
- 🚀 Fast calculations
- 💡 Helpful for school/homework
- 🎨 Customizable design

**What reviewers complain about**

- 🔍 Too many ads/in-app purchases
- 🐛 Inaccurate calculations
- 💰 Subscription model for basic features
- 🔒 Privacy concerns with permissions

**Reported bugs**

- Buttons not responsive
- History/calculation display issues
- Conversion feature not working properly

**Requested features**

- Fraction support
- Memory function
- Handwriting recognition improvements
- No ads for paid users


## Frequently asked questions

### Is Regnum Christi free?

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

### Is Calculator for iPad + free?

Calculator for iPad + is free to download, with in-app purchases available.

### Which has better reviews, Regnum Christi or Calculator for iPad +?

Regnum Christi is rated higher. Regnum Christi averages 5.0 out of 5 from 2 ratings, while Calculator for iPad + averages 4.3 from 3.6K ratings.

### Do Regnum Christi or Calculator for iPad + have ads?

Calculator for iPad + shows ads; Regnum Christi does not.

### Which is updated more often, Regnum Christi or Calculator for iPad +?

Regnum Christi ships an update every 7 months, and Calculator for iPad + every 4 weeks. Most recently, Regnum Christi was updated on August 17, 2026 and Calculator for iPad + on September 22, 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.*