# Util Monster vs Calculator.io

The clearest difference is update cadence: Calculator.io at every 2 weeks against Util Monster's every 98 months. Util Monster's advantage is iOS requirement (15.0 vs 17.0). On price, ads, 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 98 months, Calculator.io every 2 weeks. Both last shipped on November 6, 2026.

## The numbers

| Metric | Util Monster | Calculator.io |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.8 (4 ratings)](https://appshunter.io/ios/app/util-monster-1108-tools/id392925219/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 98 months | **Every 2 weeks** |
| Monetization | Ad-supported | — |
| Size | 101 MB | 33 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 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-1108-tools/id392925219)

This app offers a comprehensive suite of over 1,100 calculators and converters for everyday tasks. Easily calculate discounts, split expenses, convert units, find date differences, and explore loan scenarios. Customize your experience with language and appearance settings.

**Highlights:** 1,108 calculators and converters, Shopping and shared cost calculations, Unit and temperature conversions, Date difference calculations, Loan, savings, and BMI calculators, Favorites and recently used tools, 15 interface languages

**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?

Both Util Monster and Calculator.io show ads.

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

Util Monster ships an update every 98 months, and Calculator.io every 2 weeks. Most recently, Util Monster was updated on November 6, 2026 and Calculator.io on November 6, 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.*