Time Calculator: Add, Subtract

Developer: Phan Nhat Đang

Category: Tools

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20.1K installs

401 ratings

992 monthly active users

$<10K monthly revenue est.

IAP 100% · Ad 0%

Install Trends

Weekly +17

Steady

Monthly +83

Steady

Time Calculator: Add, Subtract Summary

Time Calculator: Add, Subtract is a with in-app purchases iOS app in Tools by Phan Nhat Đang. Released in Sep 2021 (4 years ago). It has 401 ratings with a 4.46★ (good) average. Based on AppGoblin estimates, it reaches roughly 992 monthly active users and generates around $<10K monthly revenue (100% IAP / 0% ads). Store metadata: updated Jun 9, 2026.

Recent activity: 1.00 new ratings this week View trends →

Store info: Last updated on App Store on Jun 9, 2026 .

SDKs, Trackers & Permissions

App not yet scanned for SDKs.

App Details

Store ID: 1583726955

First Released: 2021-09-14

Store Last Updated: 2026-06-09

In-App Purchases: Yes

Ads: No

Website: nhatdang.freetzi.com

App Store

Crawl Status: Success

AppGoblin First Crawled: 2022-11-28

AppGoblin Last Crawled: 2026-06-27

Ads & App-Ads.txt

Ads.txt Last Crawled: 2026-03-03

Ads.txt Crawl Status: Success

AppGoblin SDK Scans

App not yet analyzed for SDKs.

4.46★

Ratings: 401

5★

4★

3★

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1★

Screenshots

App Description

Use this App to solve a wide range of time and date calculations. We provide tools to:

• Add or subtract two time values
• Add or subtract time from a starting date and time
• Calculate the duration between two times
• Calculate the duration between two dates

This App is simple, intuitive, and easy to use.

Results are estimates for informational purposes only.

We are very happy to serve you. If you have any requests, don't hesitate to contact us.
- https://www.facebook.com/phan.nhatdang.3/
- phannhatd@gmail.com