Bunker Stem: Fuel Evidence
BDN & MFM Delivery Proof
About
This app provides an offline workspace for managing bunker fuel delivery evidence. It allows users to record figures, samples, photos, and remarks, compare quantities, and preview a local evidence pack before export. Transparency features are free, with paid access for exporting and archiving.
What's New in Bunker Stem
1.3
June 29, 2026
Clearer App Store listing and screenshots for bunker fuel delivery evidence.
Subscription plans
Annual Export Access
Export claim-ready evidence packs offline.
Developer apps
FAQ
What is Bunker Stem used for?
Bunker Stem is an offline evidence workspace designed for bunker fuel delivery. It helps users record and manage delivery figures, samples, photos, and remarks to create a local evidence pack.
Is Bunker Stem free to use?
Yes, core workflows like calculations, audit views, source assumptions, and PDF preview are available for free. Paid access is required for exporting, sharing, and archiving the Evidence Pack.
Does Bunker Stem require an internet connection?
No, Bunker Stem does not require login, cloud sync, or a live network connection for its active workflow. It is designed to function offline.
What are the subscription options for Bunker Stem?
Bunker Stem offers Monthly Export Access for $19.99/P1M and Annual Export Access for $149.99/P1Y. The annual plan includes a 3-day free trial.
What kind of evidence can be recorded in Bunker Stem?
Users can record BDN and MFM figures, samples, seals, photos, and remarks. It also includes a checklist for supplier, fuel grade, density, and delivered quantity.
Can I issue eBDNs or purchase fuel through Bunker Stem?
No, Bunker Stem is not an eBDN issuance platform, supplier marketplace, purchasing system, or live bunker price service. It focuses on providing a receiving-side proof layer.
What devices does Bunker Stem support?
Bunker Stem is supported on iPhone and iPad devices.
How often is Bunker Stem updated?
The latest version, 1.3, was last updated on June 29, 2026. Specific update frequency is not detailed, but it is actively maintained.