# Util Monster: Calculator — Offline everyday calculators

> A versatile offline calculator app with 15 tools for everyday needs. (iPhone/iPad app by AD Lift Co., Ltd.)

- Source: https://appshunter.io/ios/app/util-monster-calculator/id392925219 (this page in markdown: same URL + `.md`)
- Developer: [AD Lift Co., Ltd](https://appshunter.io/developer/1697835703)
- Category: Utilities, Productivity
- Price: Free
- Rating: 2.80/5 from 4 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 18 MB
- Languages: Korean
- Released: 2010-09-24
- Data updated: 2026-08-09
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/util-monster-calculator/id392925219/reviews.md

## What is Util Monster?

Stop searching for a different calculator every time. Util Monster brings 15 practical calculators for everyday life, finance, health, and study into one clear app.

Included calculators
• Percentage and discount
• Loan payment and total interest
• Compound interest and savings goal
• BMI, BMR, and daily calorie needs
• Age and date difference
• Length, weight, and temperature conversion
• Grade, average, circle, and speed
• Tip and tax
• Fuel economy conversion

Find it fast and use it again
Browse by category or search by name. Save useful calculators to Favorites and reopen recently used tools without hunting for them again.

Offline first
Calculations happen on your device. You do not need an account, and calculator inputs are not sent to a server.

Set it your way
Choose Korean or English, light or dark appearance, and metric or imperial defaults.

Health and finance results are general estimates. Check professional or institutional guidance before making important decisions.

## Key features

- 15 practical calculators
- Offline functionality
- Categorized browsing and search
- Favorites and recent tools
- Customizable appearance and defaults
- Supports English and Korean

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/util-monster-calculator/id392925219/reviews.md

### 4/5 — It's very good.

*2011-01-24*

It's very good.

## Frequently asked questions about Util Monster

### What types of calculators are included in Util Monster?

Util Monster includes 15 calculators for everyday use, covering finance (loan, interest, tip, tax), health (BMI, BMR, calories), conversions (length, weight, temperature), and study (grade, average, speed).

### Does Util Monster require an internet connection to work?

No, Util Monster is designed as an 'offline first' application. All calculations are performed on your device, and you do not need an account or internet connection to use its features.

### Can I customize the appearance of Util Monster?

Yes, you can set your preferred appearance, choosing between light or dark modes. You can also select your default units, such as metric or imperial.

### How does Util Monster help me find calculators quickly?

You can browse calculators by category or search for them by name. Additionally, you can save frequently used calculators to your Favorites and access recently used tools without searching again.

### Is Util Monster suitable for making important financial or health decisions?

The app states that health and finance results are general estimates. It advises users to check professional or institutional guidance before making any important decisions.

### What languages does Util Monster support?

Util Monster supports both Korean and English languages, allowing users to select their preferred interface language.

### What is the user rating for Util Monster?

Util Monster has a user rating of 2.8 stars based on 4 ratings.

### When was Util Monster last updated?

The latest version of Util Monster was updated on August 8, 2026.

## Version history (last 2 releases)

### 2.0.0 — 2026-08-08

Introducing the all-new Util Monster 2.0.

• 15 calculators for everyday life, finance, health, and study
• Korean and English support
• Favorites and recently used tools
• Light and dark themes with unit preferences
• Offline calculations with no account required

### 1.0 — 2010-09-24

No release notes.

## More apps by AD Lift Co., Ltd

- [암기왕 – 단어 암기 & 공부 루틴 관리](https://appshunter.io/ios/app/and/id412399699)

All apps by AD Lift Co., Ltd: https://appshunter.io/developer/1697835703

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-09.*