# Util Monster vs Calculator #

The clearest difference is rating: Calculator # at 4.6 against Util Monster's 2.8. Calculator # also leads on update cadence (every 2 months vs every 193 months) and ratings volume (36K vs 4). Util Monster's advantage is review sentiment (100% vs 60%) and in-app purchases (none vs 6). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Calculator # sells 6 in-app purchases, starting at $1.49 per month. Util Monster asks for nothing beyond the download.

Calculator # holds the better App Store score, 4.6 against 2.8. That said, the two scores are not equally well evidenced: Calculator # has 36K ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 100% of Util Monster's written reviews are positive against 60% of Calculator #'s, so the app with the better star average is not the one people write more warmly about.

Util Monster ships an update every 193 months, Calculator # every 2 months. The most recent releases landed on October 11, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Util Monster | Calculator # |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.8 (4 ratings)](https://appshunter.io/ios/app/util-monster-calculator/id392925219/reviews) | **[4.6 (36K ratings)](https://appshunter.io/ios/app/calculator/id458535080/reviews)** |
| Number of ratings | 4 | **36K** |
| Positive reviews | **100.0% of reviews** | 59.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 193 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 18 MB | 57 MB |
| Requires iOS | 13.0 | **12.1** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [AD Lift Co., Ltd](https://appshunter.io/developer/1697835703) | [Incpt.Mobis](https://appshunter.io/developer/445261166) |

## What reviewers say

### Util Monster

[App page](https://appshunter.io/ios/app/util-monster-calculator/id392925219)

This app consolidates 15 essential calculators for daily tasks, finance, health, and study into a single, user-friendly interface. It offers offline functionality, customization options, and quick access to frequently used tools.

**Highlights:** 15 practical calculators, Offline functionality, Categorized browsing and search, Favorites and recent tools, Customizable appearance and defaults, Supports English and Korean

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

**In-app purchases:** none


### Calculator #

[App page](https://appshunter.io/ios/app/calculator/id458535080)

This multi-function calculator offers basic to advanced scientific and algebraic computations. It includes features like handwriting recognition, equation solvers, and 2D graphing, making it suitable for students and professionals. In-app purchases unlock advanced capabilities.

**Highlights:** Math Photos Solver, Handwriting Recognition, AI Math Problem Solver, Mathematical Display, Equation Solvers, 2D Graphing, Algebraic Functions

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Upgrade 1 Month | $1.49 | per month |
| PRO Upgrade 3 Months | $2.99 | per 3 months |
| PRO + Recognition 1 Month | $4.99 | per month |
| PRO + Recognition 3 Months | $11.99 | per 3 months |
| 250 AI Recognition & Queries | $0.99 | one-time |
| 600 AI Recognition & Queries | $1.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Powerful functionality
- 💡 Helpful for math classes
- ⭐ Great for students
- 👌 Works like a real calculator

**What reviewers complain about**

- 🔍 Confusing interface after update
- 📢 Too many intrusive ads
- 💰 Paywall for advanced features
- 🐛 Incorrect calculations
- 🔇 Loud audio ads

**Reported bugs**

- Crashes when trying to use certain functions
- Handwriting recognition not working reliably
- Inability to input negative numbers

**Requested features**

- Add option to turn off animation
- Improve ad placement to avoid obstructing usage
- Provide more transparency on paid features


## Frequently asked questions

### Is Util Monster free?

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

### Is Calculator # free?

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

### Which has better reviews, Util Monster or Calculator #?

Calculator # is rated higher. Util Monster averages 2.8 out of 5 from 4 ratings, while Calculator # averages 4.6 from 36K ratings.

### Do Util Monster or Calculator # have ads?

Calculator # shows ads; Util Monster does not.

### Which is updated more often, Util Monster or Calculator #?

Util Monster ships an update every 193 months, and Calculator # every 2 months. Most recently, Util Monster was updated on October 11, 2026 and Calculator # on October 19, 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.*