Oxygen Calculation Tool Downloads & RevenueOxygen Calculation Tool · App Store
Oxygen Calculation Tool is #60 in Reference Paid in United States and charting in 1 of 30 countries we track.
Updated 9 Nov 2026 · rankings refresh through the day
DeveloperJoshua Savko
CategoryReference
Price0.99 USD
Released
Rating★ 4.8 (165)
Version1.4
Age rating12+
First seen by us
26 Sep 2026
26 Sep 2026Oxygen Calculation Tool update history & changes
Last change · 4 events since 7 Apr 2020Full timeline ↓Full timeline · 3 events in the last 12 months
- 📈Oxygen Calculation Tool entered the top 100Top Paid · Reference · US
- 🆕Oxygen Calculation Tool first spotted by AppInsider#31 in Top Paid · Reference · United States
- 🆕Oxygen Calculation Tool released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
4.8 ★
165 ratings
Measured
Best rank now
#60
Reference PaidMeasured
Oxygen Calculation Tool on the App Store
App details
App ID
1502863745
Publisher
Joshua Savko
On the store since
Apr 2020
6 years on the store
Minimum OS
iOS 15.4+
iPhone 6s and later
Devices
iPhone · iPad
Universal purchase
Content rating
12+
1 content note below
Languages
1
EN
Size
16 MB
Also listed in
Medical
Content notesInfrequent/Mild Medical/Treatment Information
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| United States | ReferencePaid | #60 |
Apps near Oxygen Calculation Tool on the chart
Reference Paid, around #60.
Ratings
App Store, worldwide.
Rating
4.8 ★
165 ratings
Measured
Ratings
165
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
4.8★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
56/100
faster than 60% of Reference apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About Oxygen Calculation Tool
Oxygen Calculation Tool is an app designed with transport medical professionals in mind. Once you enter your oxygen supply and a flow rate, your minutes of usable oxygen will be generated.
Oxygen Calculation Tool makes it easy to add and delete up to 10 cylinders for both the portable and onboard supply. The user also has the flexibility to enter the flow rate as a free flow setting or from ventilation settings, calculated from the minute ventilation and the FiO2 settings. Optionally, user can also enter ventilator-specific bias flow, if needed.
Oxygen Calculation Tool also has a countdown feature. This can be used to time your O2 use with your chosen settings. Using the countdown will update the settings automatically.
The drip rate calculator can be used to assist you with med math. Enter the supply and dose information and the calculator will determine the rate in ml/hr.
Oxygen Calculation Tool contains a reference page, where the math calculation used in this app is outlined, along with a list of oxygen cylinders and associated conversion factors. If you don't see a cylinder size that you need, use the feedback feature found in the settings to let me know and I will try to add it.
This app is also dark mode compatible.
Calculations are rounded down to the nearest whole minute.
***Please note, this app does NOT subtract 200 psi from initial input to account for residual O2. Some formulas may call for this. If this is desired by users, you can subtract 200 psi from your pressure prior to input.
Oxygen Calculation Tool makes it easy to add and delete up to 10 cylinders for both the portable and onboard supply. The user also has the flexibility to enter the flow rate as a free flow setting or from ventilation settings, calculated from the minute ventilation and the FiO2 settings. Optionally, user can also enter ventilator-specific bias flow, if needed.
Oxygen Calculation Tool also has a countdown feature. This can be used to time your O2 use with your chosen settings. Using the countdown will update the settings automatically.
The drip rate calculator can be used to assist you with med math. Enter the supply and dose information and the calculator will determine the rate in ml/hr.
Oxygen Calculation Tool contains a reference page, where the math calculation used in this app is outlined, along with a list of oxygen cylinders and associated conversion factors. If you don't see a cylinder size that you need, use the feedback feature found in the settings to let me know and I will try to add it.
This app is also dark mode compatible.
Calculations are rounded down to the nearest whole minute.
***Please note, this app does NOT subtract 200 psi from initial input to account for residual O2. Some formulas may call for this. If this is desired by users, you can subtract 200 psi from your pressure prior to input.
Latest updates
1.4
Updated to function with latest Apple software version.
Fixed bug that would crash app when deleting oxygen bottles.