QX9.COM vs Bunker Stem
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
QX9.COM
A digital marketplace for buying and selling industrial machinery, parts, and accessories. Connect with suppliers and find the equipment you need for your business operations.
- Machinery marketplace
- Parts and accessories
- Business operations
- Supplier connections
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Machines, parts and accessories marketplace
Bunker Stem
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.
- Offline evidence workspace
- Bunker fuel quantity computer
- BDN checklist
- Stem workspace with status
- Local Evidence Pack PDF preview
- StoreKit export access
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Bunker Stem is an offline bunker fuel calculator and evidence workspace for receiving-side delivery. Calculate quantity, estimate ROB, check BDN/MFM figures, record samples, seals, photos and remarks, and preview a local Evidence Pack PDF before the vessel sails. Use it when a bunker operation needs a neutral local record before signing, sharing, or disputing delivery evidence. Core workflows: - Bunker fuel quantity computer with visible inputs, normalized values, method, rounding and warnings. - Voyage / ROB planning estimate for practical bunker planning. - BDN checklist for supplier, fuel grade, density, observed volume, delivered quantity, sulphur note and photo state. - Stem workspace with status, supplier/barge fields, surveyor, ETA, samples, seals, eBDN verification reminder and discrepancy review. - Singapore-first port context with source/version visibility and manual override. - Fuel Library with offline source/version audit. - PDF preview generated locally before export access. - StoreKit export access for sharing, archiving and repeat professional use. Transparency stays free. Calculations, audit views, source assumptions and PDF preview are available before export access. Paid access is for exporting, sharing and archiving the Evidence Pack. Bunker Stem does not require login, cloud sync or a live network connection for the active workflow. Public data pack values are handled as source-backed assumptions; user-entered BDN, MFM, lab and price evidence remains authoritative. Bunker Stem is not an eBDN issuance platform, supplier marketplace, purchasing system or live bunker price service. It is built as a receiving-side proof layer for crews, surveyors, port agents and operators who need to understand what happened during delivery. Important: Bunker Stem is a practical workflow and evidence organization tool. It does not replace professional judgment, contractual review, class requirements, regulatory advice or official measurement procedures. Privacy Policy: https://metacad.io/bunkerstem/privacy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
QX9.COM and Bunker Stem both sit at 5.0 stars, but that hides the real split: 100% of Bunker Stem's written reviews are positive against 64% of QX9.COM's. Bunker Stem also leads on update cadence (every 2 weeks vs every 2 months). QX9.COM's advantage is in-app purchases (none vs 2) and iOS requirement (11.0 vs 17.0). On price, rating, ratings volume and ads 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. Bunker Stem sells 2 in-app purchases, starting at $19.99 per month. QX9.COM asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for QX9.COM against 5.0 for Bunker Stem. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews are what separate them: 64% of QX9.COM's written reviews are positive against 100% of Bunker Stem's.
QX9.COM ships an update every 2 months, Bunker Stem every 2 weeks. The most recent releases landed on October 20, 2026 and October 15, 2026 respectively.
| Parameter | QX9.COM | Bunker Stem |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | 64.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 1 |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 35 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Rusoft MSC LLC | Dmitriy Motorin |
Customer experience
QX9.COM
Bunker Stem
In-app purchases
QX9.COM
No in-app purchases
Bunker Stem
- Monthly Export Access$19.991 Month
- Annual Export Access3 Days trial$149.991 Year
