# Util Monster vs Calculator.io

The clearest difference is ads: Util Monster at none against Calculator.io's shown. Util Monster also leads on iOS requirement (13.0 vs 17.0). Calculator.io's advantage is update cadence (every 2 weeks vs every 193 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Util Monster ships an update every 193 months, Calculator.io every 2 weeks. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Util Monster | Calculator.io |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.8 (4 ratings)](https://appshunter.io/ios/app/util-monster-calculator/id392925219/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 193 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 18 MB | 33 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [AD Lift Co., Ltd](https://appshunter.io/developer/1697835703) | [ARSIDIAN Limited Liability Company](https://appshunter.io/developer/6793037470) |

## 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.io

[App page](https://appshunter.io/ios/app/calculatorio/id6814820777)

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

**In-app purchases:** none


## Frequently asked questions

### Is Util Monster free?

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

### Is Calculator.io free?

Calculator.io is free to download, with no in-app purchases.

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

Calculator.io shows ads; Util Monster does not.

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

Util Monster ships an update every 193 months, and Calculator.io every 2 weeks. Most recently, Util Monster was updated on October 23, 2026 and Calculator.io on October 24, 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.*