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App Store Apps > Business > Bunker One
Bunker One icon

Bunker One

by Askapps · Business · Free
On the App Store since May 2011 · Data updated 2026-10-29

Bunker One is made and published by Askapps. AppBrain is an independent app data site and isn't affiliated with Askapps. The app name, icon, screenshots and description belong to Askapps and are shown as published on the App Store.

AppBrain's verdict

Established
Rating on App Store
4.50
2 ratings
Last updated
August 24, 2026
Size
16.3 MB

It doesn't have enough ratings yet to judge what users think.

Official page on the App Store

User feedback

Ratings and reviews on the App Store

Comments on Bunker One for iOS

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Store listing

By Askapps, from the App Store
Bunker One Screenshot 1 of 5
Bunker One Screenshot 2 of 5
Bunker One Screenshot 3 of 5
Bunker One Screenshot 4 of 5
Bunker One Screenshot 5 of 5
Screenshots by Askapps, from the the App Store listing
Description by Askapps Written by the developer, not by AppBrain. Click to read.
This application by Bunker One, is a small practicable tool for look up the ISO 8217 - 2005, 2010/2012, 2017 & 2024 standards for residual- and distillate marine fuels.
Programmed calculators are included for different fuel related calculations.

Calculators programmed as below.:
-CCAI Number according ISO 8217
-Cetan Index ASTM - D 976 - 80 (old method)
ASTM - D 4737 - 87 (new method)
-Deviation calculations according Bunker One
-Energy and price relations according Bunker One
-Fuel Blending - Viscosity blending according ASTM - D 7152
Sulphur blending according Bunker One
-Injection temperature according Bunker One
-Reproducibility
-Specific Energy gross and net content according ISO 8217
-Viscosity Index according ASTM - D 341
-Volume Correction Factor according ASTM D1250-80 Table 5B

General for all calculators is that all entries shall be in SI units. And results also given in SI units.
Where there is a differentiation between Distillates and Residual fuels, distillates are defined with density lower than 900 kg/m3
Where there is a differentiation between Straight Run fuel and Cracked fuels, straight run fuels are defined with density lower than 950 kg/m3

News published on our web page Bunkerone.com will be pushed to the app holders and publish with link to the web under the "news" bar
Official page on the App Store

Safety and technology

Found in the app by AppBrain
Price
Free
App size
16.3 MB
Content rating
Everyone

Technologies used by Bunker One

Releases

Updates seen on the App Store
Version
5.0.2
Launched
May 2011

No changelog data

Alternatives

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Rankings

App Store top charts

App Store Rankings for Bunker One

This app is not ranked

About the app and developer

About Bunker One

Bunker One is a business app developed by Askapps.

User Ratings

Bunker One is rated 4.50 out of 5 stars. The rating is based on 2 ratings.

App Information

Bunker One is freely available from the App Store. The app size is 16.27 MB. The latest version available is 5.0.2. The last update was on August 24, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on the App Store since May 2011.

Developer information for Askapps

Askapps

Address:

Frequently asked questions about Bunker One

Is Bunker One free?

Yes. Bunker One is free on the App Store.

Is Bunker One still available?

Yes. Bunker One is on the App Store, and the last update we saw was on August 24, 2026.

How large is Bunker One?

Bunker One is 16.27 MB.

Is Bunker One suitable for children?

App Store rates the content of Bunker One as suitable for everyone.

How do people rate Bunker One?

Bunker One scores 4.50 out of 5 stars, from 2 ratings on the App Store.

Who made Bunker One?

Bunker One was developed by Askapps. It is listed in the business category on the App Store.

What are the best alternatives to Bunker One?

People looking at Bunker One also look at these business apps: Engine Programme, Digital Bunker, Saybolt Oil Calculator, Integr8 Fuels, Oilcalcs.

Share Bunker One

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Integr8 Fuels icon Integr8 Fuels
Oilcalcs icon Oilcalcs
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PSC Check icon PSC Check
Seafarer Portal(ASM) icon Seafarer Portal(ASM)
Overview Alternatives Reviews Rankings Technology
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