The hottest Mobile Applications Substack posts right now

The author upgraded a radar app for their toddler who loves planes
The upgrade included new UI features like controls menu and zoom levels
The app also added functionality like displaying flags of origin countries and custom API login

Many food diary apps are too complicated, with too many buttons and options that make them hard to use.
A new app called FoodDiaryApp allows users to input food information in a simple, natural language format like 'ate chicken with broccoli and cauliflower, cream sauce', making it easy to use.
FoodDiaryApp has all the standard features of a food diary app, but stands out for its simplicity, beauty, and ability to use natural language for data entry.

Bluezone is a mobile app that helps with contact tracing for COVID-19 in Vietnam by using Bluetooth Low Energy technology.
The privacy of Bluezone users has been a concern, but recent versions have addressed some security vulnerabilities.
It is important for the government and developers of data-tracking apps like Bluezone to ensure data is only used for pandemic control purposes and establish independent oversight.

Bluezone app has made important security improvements by automatically changing the user ID and stopping collection of Bluetooth Classic addresses.
Only Bluezone developers and the Vietnamese government can gather user information now, ensuring better privacy for users.
It's advised for end users to install Bluezone if they trust the developers and government, while developers should commit to deleting data post-pandemic and enhance data protection measures.

Bluezone app had serious security vulnerabilities that could compromise user safety and privacy.
The unique ID system used in Bluezone could lead to tracking and exposure of sensitive information, raising concerns about user safety.
The app's requirement for excessive permissions like access to location and storage without appropriate need raised red flags for user privacy.

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Splitwise helps users track shared expenses easily. It lets people split costs for outings, so everyone knows what they owe.
Users can create accounts, join groups, and add expenses that can be assigned to different members. The app automatically calculates what each person owes.
The system is designed to handle many users securely while providing quick access to important information like balances and recent transactions.

Understanding Bluetooth Low Energy (BLE) security is essential for bug bounty hunting
Developers must test BLE implementations for vulnerabilities in communication protocols
Testing BLE apps and devices requires specialized tools and knowledge, but can uncover valuable vulnerabilities

Smaller AI models are gaining popularity because they can run directly on devices like phones and laptops. This means they can provide services without needing to connect to the cloud.
These models are better for privacy since they keep user data on the device, and they are also cheaper to use, as they require less computing power.
While they might not be as powerful as larger models for complex tasks, smaller AI models are great for quick responses and specific applications like customer support and mobile apps.