# (Not Boring) Calculator vs Katihar Division

The clearest difference is in-app purchases: Katihar Division at none against (Not Boring) Calculator's 10. Katihar Division also leads on iOS requirement (15.6 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. (Not Boring) Calculator sells 9 in-app purchases, starting at $7.99 per month. Katihar Division asks for nothing beyond the download.

(Not Boring) Calculator ships an update monthly, Katihar Division every 6 weeks. The most recent releases landed on November 7, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | (Not Boring) Calculator | Katihar Division |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (4.2K ratings)](https://appshunter.io/ios/app/not-boring-calculator/id1533591596/reviews)** | — |
| Number of ratings | **4.2K** | — |
| Positive reviews | 70.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 138 MB | 41 MB |
| Requires iOS | 26.0 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Not Boring Software LLC](https://appshunter.io/developer/1531048093) | [InnologixConsulting](https://appshunter.io/developer/1286604784) |

## What reviewers say

### (Not Boring) Calculator

[App page](https://appshunter.io/ios/app/not-boring-calculator/id1533591596)

This app reimagines the everyday calculator with a fun, game-like interface and animations. It displays your full equation as you type, making it easy to spot and correct mistakes. Customizable skins and seasonal updates keep the experience fresh.

**Highlights:** Shows full equation as you type, Editable equation for mistake correction, 3D interface with game-inspired animations, Built-in percentage calculations, Large, readable numbers, Customizable skins

**Features:** Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Super !Boring Monthly | $7.99 | per month |
| Super !Boring Yearly | $29.99 | per year |
| Chroma Skin | $4.99 | one-time |
| Monsters Skin | $4.99 | one-time |
| Opal Skin | $9.99 | one-time |
| Presstube Skin | $9.99 | one-time |
| Karat Skin | $9.99 | one-time |
| Cedar Skin | $9.99 | one-time |
| !Calculator Plus Lifetime | $14.99 | one-time |

**What reviewers like**

- 💎 Beautifully designed
- 👍 Intuitive and user-friendly
- 🎨 Customizable skins
- 🔊 Satisfying sound effects
- ✏️ Ability to edit mistakes

**What reviewers complain about**

- 💰 Subscription-based model
- 🔢 Limited functionality compared to standard calculator
- 🔍 No calculation history
- 🔒 Paywall for advanced features
- ⏱️ Occasional lag or performance issues

**Reported bugs**

- Crashes when switching between apps
- Freezing on certain devices

**Requested features**

- Scientific calculator functions
- Calculation history
- Widgets and control center integration
- One-time purchase option


### Katihar Division

[App page](https://appshunter.io/ios/app/katihar-division/id6741095478)

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

**In-app purchases:** none


## Frequently asked questions

### Is (Not Boring) Calculator free?

(Not Boring) Calculator is free to download, with in-app purchases available.

### Is Katihar Division free?

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

### Do (Not Boring) Calculator or Katihar Division have ads?

Neither (Not Boring) Calculator nor Katihar Division shows ads.

### Which is updated more often, (Not Boring) Calculator or Katihar Division?

(Not Boring) Calculator ships an update monthly, and Katihar Division every 6 weeks. Most recently, (Not Boring) Calculator was updated on November 7, 2026 and Katihar Division on October 1, 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.*