This iPhone-exclusive training app helps you extend your breath-holding duration using CO2 and O2 tables. It provides suggested training times based on your maximum breath hold, but always consult a professional and train safely.
2.0.1
November 4, 2025
Liquid glass update
Hold breath longer underwater is an iPhone-exclusive training app designed to help users prolong their breath-holding duration. It utilizes two primary training methods: CO2 tables to enhance CO2 tolerance and O2 tables to extend maximum breath-hold time.
Hold breath longer underwater is a paid application, available for a one-time purchase of $1.99. There are no in-app purchases or subscriptions required.
Hold breath longer underwater is exclusively available for Apple devices, including the iPhone, iPad, and iPod. It is not available on Android or other platforms.
Hold breath longer underwater has an age rating of 17+. This is due to the serious health risks associated with breath-hold training, which the app's description clearly outlines.
The app was last updated on November 4, 2025, indicating recent development and maintenance. The current version is 2.0.1, first released on October 6, 2016.
No, Hold breath longer underwater does not contain advertisements. As a paid application, it offers an uninterrupted user experience without any ad interruptions.
The app strongly advises never to train alone, always have someone aware of your training, and consult a doctor before starting. It also warns against overtraining and emphasizes stopping immediately if feeling uncomfortable due to potential health risks.
The app's disclaimer states that the suggested training times are only suggestions and do not guarantee any training success. Any session suggested by the app should be carefully reviewed by a professional prior to training.
