# Calculator Widget - Calcullo — Interactive, Standby Widget 26

> Home screen and control center calculator widget for quick calculations. (iPhone/iPad app by Supagarn Pattananuchart.)

- Source: https://appshunter.io/ios/app/calculator-widget-calcullo/id6464038761 (this page in markdown: same URL + `.md`)
- Developer: [Supagarn Pattananuchart](https://appshunter.io/developer/1488328374)
- Category: Utilities
- Price: $0.99
- Rating: 4.60/5 from 122 App Store ratings · 29 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 7 MB
- Languages: American English
- Released: 2023-09-18
- Data updated: 2026-08-26
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/calculator-widget-calcullo/id6464038761/reviews.md

## What is Calculator Widget?

Experience the ultimate convenience of a calculator right at your fingertips with Calcullo - Calculator Widget! Say goodbye to the hassle of opening a separate app every time you need to crunch numbers. With Calcullo, you can access a powerful calculator directly from your home screen or control center, making quick calculations a breeze.

Key Features:

• Interactive Widget 
Perform calculations with ease. No need to open a separate app—simply tap and calculate directly from your home screen.

• Control Center Widget
Swipe and calculate directly from your iOS 18 Control Center

• StandBy Mode
Transform your iPhone into a cutting-edge smart display with a mind-blowing calculator.

• History
Track your previous calculations.

• Smart Stack
Explore several widgets in one place. 

Download Calcullo now and simplify your daily calculations with a widget that's always at your fingertips!

## Key features

- Interactive home screen widget
- iOS 18 Control Center widget
- StandBy mode calculator
- Calculation history
- Smart stack widget organization

## Recent user reviews (10 of 29)

All indexed reviews: https://appshunter.io/ios/app/calculator-widget-calcullo/id6464038761/reviews.md

### 3/5 — Was great sadly stopped working

*2026-01-15*

Was great but the widget stopped working a couple of weeks ago

### 4/5 — Gute App mit Luft nach oben

*2024-11-15*

Die App funktioniert prima. Mir reichen die Standardfunktionen. Allerdings funktioniert das Widget im Sperrbildschirm nicht. Es zeigt keinerlei Eingaben. Auf den anderen Bildschirmen geht es. Daher nur 4 Sterne. Bitte noch korrigieren.

### 4/5 — Slight delay when tapping inside the widget

*2024-09-29*

The app works really well, but when pressing the numbers inside the widget, there is about a half a second delay between presses. Inside the actual app it’s absolutely fine. This is on an iPhone 16 Pro Max and it was on an iPhone 15 Pro Max running iOS 18.0 and iOS 18.1 beta five.

### 4/5 — Was 5 star

*2024-09-23*

This was a far better calculator than the default one, but with the ios18 upgrade, Calcullo could use some improvements to keep up. Eg, currency/measurement converter, equations support, and lockscreen widgets.

### 5/5 — Great App /w iOS18 Widget

*2024-09-22*

downloaded this app as i needed a calculator widget in iOS 18 as my go-to app of several years was no longer providing a widget in iOS 18. Calcullo is a perfect replacement and multifunctional. thanks you developer.

### 1/5 — Widget is not working as of Sep 22, 2024

*2024-09-22*

Please fix

**Developer response:** I apologize for the inconvenience you're experiencing. Sometimes, after a new iOS or app update, certain features like widgets can stop working. To resolve this, I recommend trying the following steps:

1. Remove the widget from your home screen.
2. Restart your phone to refresh the system.
3. Add the widget back to your home screen.

If the problem persists after following these steps, it may be due to a deeper compatibility issue. In that case, please feel free to contact me directly at developer@supagarn-pa.com, and I’ll be happy to assist you further and investigate the issue. Thank you for your patience!

### 5/5 — Merci Beaucoup

*2024-05-31*

Nothing to say but it's done very well.  This app/widgett carries an air of class and refined simplicity.

### 5/5 — Pro tip

*2024-05-27*

Instead of using the 17+ Widget, there’s a legacy one accessible via the “Personalize” menu in the Today View. This one doesn’t have the interactive widget typical delay.

### 4/5 — Love design, Widget could be improved

*2024-05-23*

I got this app bc of the widget function. I love it so much but it’s pretty annoying that when I’m using the widget, the app opens. Is there a way to change that with the next update pls

### 4/5 — A great App missing one vital item - iCloud

*2024-05-16*

I love this app, simple but sturdy enough to retain a history. 
Unfortunately the history is only of use to one device, it is not passed on to other devices ie iPhone/iPad/Watch. What it needs is iCloud support and a watch app.
Give me these and I would gladly pay.

## Frequently asked questions about Calculator Widget

### What does Calcullo - Calculator Widget do?

Calcullo is a utility app that provides a calculator directly accessible through your iPhone's home screen widget and iOS 18 Control Center. It allows you to perform calculations without opening a separate app, making quick math tasks more convenient.

### What are the key features of this calculator widget?

Key features include an interactive home screen widget for direct calculation, a Control Center widget for iOS 18, a StandBy mode display for your iPhone, a history log of previous calculations, and a smart stack feature to organize multiple widgets.

### Is Calcullo - Calculator Widget free to use?

Yes, the application is available for free. There are no in-app purchases or advertisements mentioned, indicating a completely free user experience.

### What devices is Calcullo - Calculator Widget compatible with?

The app is designed for iOS devices and specifically mentions compatibility with iOS 18 for its Control Center widget feature. It also utilizes the StandBy mode available on iPhones.

### How can this app simplify my daily tasks?

This app simplifies daily tasks by placing a functional calculator directly on your home screen or within the Control Center. This eliminates the need to navigate to and open a separate calculator application for quick calculations, saving time and effort.

## Version history (last 5 releases)

### 2.6 — 2025-09-15

• iOS 26 Liquid Glass Widget

### 2.5 — 2024-09-23

• iOS 18 Control Center Widgets
• Performance improvements
• Bug fixes

### 2.4 — 2024-09-22

• iOS 18 Control Center Widgets
• Performance improvements
• Bug fixes

### 2.3 — 2024-09-19

• iOS 18 Control Center Widgets
• iOS Shortcuts
• Performance improvements
• Bug fixes

### 2.2 — 2024-09-17

• Control Center Widget
• Performance improvements
• Bug fixes

## Apps similar to Calculator Widget

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| --- | --- | --- | --- |
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| [Calculator HD Pro](https://appshunter.io/ios/app/calculator-hd-pro/id565023649) | 4.8 (11,230) | $9.99 | Utilities |
| [Calculator Pro Lite](https://appshunter.io/ios/app/calculator-pro-lite/id782873366) | 4.6 (3,066) | Free | Utilities |
| [Calculator HD Pro Lite](https://appshunter.io/ios/app/calculator-hd-pro-lite/id571121141) | 4.6 (51,312) | Free | Utilities |
| [CALC Smart Calculator ±](https://appshunter.io/ios/app/calc-smart-calculator/id576675190) | 4.8 (2,365) | Free | Utilities |
| [Calculator +](https://appshunter.io/ios/app/calculator-plus/id351815470) | 4.6 (10,020) | Free | Utilities |

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All apps by Supagarn Pattananuchart: https://appshunter.io/developer/1488328374

## Related topics

[calculator widget](https://appshunter.io/ios/topics/calculator-widget)

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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 2026-08-26.*