Digital Bunker vs I Comply ISO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Digital Bunker
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E-Ship Safety™ is the first in a series of forms in the Digital Bunker app for the global Marine fuel market. E-Ship Safety™ streamlines the commercial maritime fueling process, saving time and money. The app creates comprehensive industry-standard and legally binding, pre-delivery documentation from a tablet or smart phone. Prior to fueling operations, a safety checklist is mandated at worldwide ports between physical suppliers and receiving vessel personnel. This checklist must comply with the standards outlined in the International Safety Guide for Oil Tankers & Terminals (ISGOTT 5th edition). E-Ship Safety™ eliminates the tedious task of downloading a PDF from a port’s website, printing it out, manually filling it in and then scanning it for email back to the local port jurisdiction. With the traditional paper method, there is the added burden of keeping track of both the electronic AND paper editions. E-Ship Safety™ automates this process by providing immediate documentation for the local port, the receiving vessel and the delivery bunker tanker, barge, truck (or pipeline) via an instantaneously emailed PDF to multiple stakeholders. The app includes GPS-embedded, bunker tanker, and vessel stamps (as photographic captures) with secure digital signatures from cargo officers, delivery personnel and vessel Chief Engineers. ISGOTT-compliant and ready for use in ports throughout the world, E-Ship Safety™ replaces the pen and paper approach to checklist documentation. The software works even without a cellular connection, uploading finished forms as soon as a cellular signal or Wi-Fi is acquired. As an added security feature, E-Ship Safety™ forms include time stamping as part of the PDF filename itself. E-Ship Safety™ eliminates the potential for loss or accidental destruction of paper originals; multiple stakeholders receive copies of the identical PDF documentation, and in our opinion, the app increases fuel transfer security. There is no “original” paper to misplace.
I Comply ISO
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I Comply ISO offers compliance management systems developed to establish a culture of continual improvement and ensure compliance with your compliance obligations. We make standards & regulations easy to understand and simple to implement through I Comply ISO. Customised documentation to suit your business so you can implement ISO standards in the correct frameworks. No more guessing what's happening on site. Get visibility of your operation with full quality control.
Screenshots
Verdict
The clearest difference is update cadence: Digital Bunker at every 2 weeks against I Comply ISO's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Digital Bunker ships an update every 2 weeks, I Comply ISO every 2 months. The most recent releases landed on September 10, 2026 and September 7, 2026 respectively.
| Parameter | Digital Bunker | I Comply ISO |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.1 | 16.1 |
| Further details — not scored | ||
| Size | 43 MB | 46 MB |
| Age rating | 4+ | 4+ |
| Developer | Vortex Development Group | truthcorp |
In-app purchases
Digital Bunker
No in-app purchases
I Comply ISO
No in-app purchases








