Calc4Key

Developer: Khang Le

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141K installs

2.8K ratings

7.6K monthly active users

Revenue not available

Install Trends

Weekly +33

Trending

Monthly +183

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Calc4Key Summary

Calc4Key is a mobile iOS app in Tools by Khang Le. Released in Sep 2021 (5 years ago). It has 2.8K ratings with a 4.50★ (excellent) average. Based on AppGoblin estimates, it reaches roughly 7.6K monthly active users . Store last updated Sep 14, 2021

Calc4Key SDKs Summary

App not yet scanned for SDKs.

App Details

Store ID: 1585531759

First Released: 2021-09-14

Store Last Updated: 2021-09-14

App Store Category: Tools

In-App Purchases: No

Ads: No

Price: Paid

Website: khangle.me

App Store

Crawl Status: Success

AppGoblin First Crawled: 2022-12-18

AppGoblin Last Crawled: 2026-09-25

Ads & App-Ads.txt

Ads.txt Last Crawled: 2025-10-20

Ads.txt Crawl Status: Success

4.5★

Ratings: 2.8K

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Screenshots

App Description

Use calculator directly on keyboard anywhere, anytime. No switch apps, no copy and paste results anymore!

You must enable the keyboard under system settings, then select it in your keyboard, using the globe button.
1. Open the settings app
2. Go General > Keyboard > Keyboards > Add New Keyboard
3. Add Calc4Key
4. Start typing in any app
5. Press "globe" icon to switch to the Key4Cal keyboard
6. Enjoy