# O2gO2 — Changing Pressure(PSI) to time

> Converts oxygen cylinder pressure to remaining time duration. (iPhone/iPad app by Aeronautical Data Systems Inc..)

- Source: https://appshunter.io/ios/app/o2go2/id895990670 (this page in markdown: same URL + `.md`)
- Developer: [Aeronautical Data Systems Inc.](https://appshunter.io/developer/552304929)
- Category: Utilities
- Price: Free with in-app purchases
- Rating: 3.00/5 from 2 App Store ratings
- Age rating: 4+
- Requires: iOS 12.0 · 2 MB
- Languages: American English
- Released: 2014-08-11
- Data updated: 2026-06-10
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/o2go2/id895990670/reviews.md

## What is O2gO2?

The O2gO2 phone app is a very simple, easy to use, oxygen energy management tool. This application converts oxygen cylinder pressure into time remaining otherwise referred to as duration. This is the information that any user of a compressed gas needs to, or wants to know and that is...”how much time is left before the user is out of gas”. Time is the universal metric that everyone understands. 

There are three required inputs that are necessary to use this app and they are the size of the oxygen tank in cubic feet, the existing bottle pressure and the flow rate. Once these variables are inserted a time remaining will appear in the green display window mounted above the tank.

A multicolored strip will also be displayed on the tank. This indicates visually the amount of oxygen that is left in the tank based on the PSI remaining. When the PSI remaining equals approximately 45 minutes of time remaining, the strip will begin to show yellow at the bottom of the display cylinder and when there is approximately 15 minutes of time remaining the display will turn to red, cautioning the user to replace the cylinder with a full one.

Since there is no physical connection between the app and the oxygen cylinder, this calculation serves only as a mathematical “snapshot” as to the amount of oxygen left in the system based on the entered flow rate. After approximately 10 minutes of counting down the time remaining, the time windows will disappear and in its place will re-appear a keyboard and a blank oxygen pressure window forcing the user to insert a new pressure. The tank size will assume that you have not changed oxygen tank sizes as long as the user has not disconnected from the app. If the user has disconnected from the app, the oxygen tank size will have to be entered again as well.

The O2gO2 provides a universal metric understood most people. This technology will begin to shape the way the world will manage its energy resources thru time management. The O2gO2 is just one of many smart tools created by Aeronautical Data Systems Inc. , so look for others in the near future.

The O2gO2 comes with a 30 day free trial period where the user can cancel at any time by deselecting the buy option (or whatever you are using to turn the subscription on/off) anytime before the end of the 29th day. After this you will be charged $2.99 USD for a one year (365 day) subscription. The subscription will end at midnight on the 365th day after the day of purchase.
• Auto-renewable subscription- The subscription will renew itself automatically at the end of the 365 day period unless the auto-renew option is turned off as described below.
• 30 day - Free trial period, no obligation and can cancel anytime during that period. After 30 days the user will get charged $2.99 for an annual subscription.
• Your subscription will be charged to your iTunes account at confirmation of purchase and will automatically renew itself at the end of 365 days unless auto-renew is turned off at least 24 hours before the end of the current period.
• Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your iTunes Account Settings after purchase.
• Privacy policy:https://adsopp.com/eops/terms

## Key features

- Converts PSI to time remaining
- Calculates duration based on tank size, pressure, and flow rate
- Visual multicolored strip indicates oxygen level
- Yellow and red indicators for low oxygen
- Automatic reset for pressure input
- Assumes consistent tank size

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| O2 Go2 Yearly Subscription | $2.99 | per year |



## Frequently asked questions about O2gO2

### What is O2gO2?

O2gO2 is a utility application designed to convert oxygen cylinder pressure (PSI) into the estimated time remaining, also known as duration. It helps users manage their compressed gas resources by providing a clear understanding of how much gas is left.

### How does O2gO2 calculate remaining time?

O2gO2 requires three inputs: the size of the oxygen tank in cubic feet, the existing bottle pressure (PSI), and the flow rate. Once these are entered, the app calculates and displays the time remaining.

### Does O2gO2 have ads?

No, O2gO2 does not contain advertisements. The application is free to download and use, with an optional annual subscription for continued access.

### What are the pricing details for O2gO2?

O2gO2 offers a 30-day free trial. After the trial, a one-year subscription costs $2.99 USD. The subscription is auto-renewable unless turned off before the renewal date.

### What devices does O2gO2 support?

O2gO2 is compatible with iPhone, iPad, and iPod devices. It is designed for iOS operating systems.

### How often is O2gO2 updated?

The latest version of O2gO2 is version 4, which was last updated on April 21, 2022. Updates typically include improvements and bug fixes to ensure reliable performance.

### What is the age rating for O2gO2?

O2gO2 has an age rating of 4+. This indicates that the content is generally suitable for all ages, with minimal or no objectionable material.

### What is the user sentiment for O2gO2?

Based on available data, O2gO2 has a rating of 3.0 stars from 2 ratings. This suggests a mixed to average user reception.

## Version history (last 4 releases)

### 4 — 2022-04-21

Subscriptions added

### 3 — 2018-05-23

This app has been updated by Apple to display the Apple Watch app icon.

Removal of unwanted features. 
Upgrades for iOS 11

### 2 — 2016-12-09

UI Fixes

### 1 — 2014-08-11

No release notes.

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## More apps by Aeronautical Data Systems Inc.

- [Ergo360 Fuel & O-2 Solutions](https://appshunter.io/ios/app/ergo360-fuel-and-o-2-solutions/id552304846)
- [O2 Timer](https://appshunter.io/ios/app/o2-timer/id763788344)
- [V2 Checklist](https://appshunter.io/ios/app/v2-checklist/id1323804522)
- [Ergo180](https://appshunter.io/ios/app/ergo180/id1354425604)
- [ErgoBlue](https://appshunter.io/ios/app/ergoblue/id1481779003)

All apps by Aeronautical Data Systems Inc.: https://appshunter.io/developer/552304929

## Related topics

[o2go2](https://appshunter.io/ios/topics/o2go2) · [o2 to go](https://appshunter.io/ios/topics/o2-to-go) · [02 to go](https://appshunter.io/ios/topics/02-to-go) · [o2togo](https://appshunter.io/ios/topics/o2togo)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*