Easily track the local times of your international contacts to avoid calling at inconvenient hours. Quickly see who is available and initiate calls directly from the app.
Call Checker by Piet Jonas
Editor's Choice
💼 Business
0.0(0 ratings)
$0.99
Best apps like The Official Black App
10+ similar apps compared and reviewed
3.1 avg rating
1 free apps
Updated August 2026
Looking for something like The Official Black App? We've analyzed 10+ similar apps to help you find the best alternative. Each app is compared by ratings, features, and real user reviews, so you can make the right choice.
Top Alternatives to The Official Black App
Date & Time Calculator(9 in 1) by Thomas Tsopanakis
Best tool to work with timeStrong Contender
💼 Business
4.7(1.9K ratings)
$0.99
#39in Business
This app offers a comprehensive suite of tools for calculating and manipulating dates and times. It can determine time differences, calculate workdays, add or subtract time intervals, and convert between various time units. It also includes features for date ranging, time zone conversions, age calculation, and even a unique time travel function.
4.8😊(1.3K ratings)
$0.99
Effortlessly perform complex percentage calculations with this intuitive tool. It offers nine distinct functions to handle increases, decreases, percentage changes, and finding original values. Copy results instantly for quick use.
What We Love
- 🚀 Easy to use
- 👍 Intuitive interface
- 🚀 Quick calculations
- 👍 Helpful for various use cases
Room to Improve
- 🔍 Could use more advanced features
- 🔍 Lacks customization options
- 🔍 Text could be larger for better visibility
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