TariffLens vs CustomsMobile
CustomsMobile is a free, mobile-friendly way to search CBP rulings and browse the HTSUS. TariffLens is an AI classifier built on the same data: it determines the 10-digit code, surfaces the ruling that bears on your product, and computes the full US duty bill, work CustomsMobile leaves to you.
Last updated July 2026 · Independent comparison by TariffLens
The short version
CustomsMobile is a free, third-party website and mobile app that republishes US CBP public data in a fast, friendly interface: CROSS rulings (a mirror of roughly 221,000 rulings), CBP notices, the HTSUS, the CFR, US Code, ports, and AD/CVD reference material. It is genuinely handy for looking things up, including on a phone, which the official government sites do not offer. But it is a lookup and search tool, not a classifier: you browse the HTSUS and search rulings yourself, and it computes no duty. TariffLens is an AI classifier built on the same underlying data: on every result it determines a full 10-digit HTSUS code with GRI reasoning, cites the CBP binding rulings that bear on the product (from a 200,000+ corpus), and computes the real-time US duty stack (Section 301/201/232/122, IEEPA/reciprocal, UFLPA, and AD/CVD). If you want a free way to browse CBP data and search rulings, CustomsMobile is useful; if you want the code determined and the duty computed with cited precedent, TariffLens is.
Use CustomsMobile as a free, mobile-friendly way to browse the HTSUS and search CBP rulings. Use TariffLens to determine the 10-digit code, surface the relevant ruling, and compute the full US duty bill.
Side by side
TariffLens vs CustomsMobile, line by line.
| TariffLens | CustomsMobile | |
|---|---|---|
| What it does | Classifies your product, cites the relevant rulings, and computes the duty. | Lets you browse the HTSUS and search CBP rulings and notices yourself. |
| Classification (description to code) | GRI reasoning to a full 10-digit HTSUS code with cited rulings and confidence. | None. Manual HTSUS browse by section, chapter, and notes; you classify yourself. |
| CBP ruling access | Surfaces and cites the rulings that bear on your product, from a 200,000+ corpus. | A full CROSS mirror (roughly 221,000) you search yourself, with prebuilt queries. |
| US duty computation | Real-time per-origin landed math across the full 2026 stack. | None. HTSUS browse and AD/CVD reference only; no per-shipment computation. |
| Monitoring | Refreshed from CBP CSMS and the Federal Register; results reflect current measures. | Provides CSMS notices to read, but no alerts tied to your products. |
| Mobile access | Web app; no dedicated mobile app. | Native iOS and Android apps for browsing CBP data on a phone. |
| Cost | Self-serve subscription; sign up and start. | Free. |
Where TariffLens wins
TariffLens is an AI classifier built on the same underlying CBP and USITC data that CustomsMobile republishes. It reasons through the General Rules of Interpretation to a full 10-digit HTSUS code, surfaces and cites the CBP binding rulings that bear on the product (from a 200,000+ corpus), and computes the real-time US duty for the origin country, so the browsing and searching CustomsMobile leaves to you is done automatically and tied to a code and a duty.
- Determines a full 10-digit HTSUS code with GRI reasoning from a product description, rather than a manual HTSUS browse.
- Surfaces and cites the CBP rulings relevant to your specific product on every result, rather than a general rulings search.
- Computes the full US duty stack per origin (Section 301/201/232/122, IEEPA/reciprocal, UFLPA, AD/CVD), which CustomsMobile does not do.
- Confidence scoring, alternatives considered, and audit-ready exports, so the output is a filing artifact.
- Self-serve with RESTful API and CSV bulk upload.
Where CustomsMobile wins
CustomsMobile (customsmobile.com) is a free, third-party website and mobile app that republishes US CBP public data in a faster, friendlier interface: it mirrors CROSS rulings (roughly 221,000, kept current), and provides CBP notices (CSMS), the HTSUS, the CFR, US Code, US port information, and AD/CVD reference material. It states plainly that it is 100% free, and it offers native iOS and Android apps. It is essentially a convenience mirror and re-indexer of the same government data the official USITC and CBP sites publish, not an original data source and not a classification engine.
- Genuinely free and login-free, and it aggregates several CBP data types (rulings, CSMS notices, HTSUS, CFR, US Code, ports, AD/CVD reference) in one place.
- A full CROSS rulings mirror (roughly 221,000, kept current) with a fast search and useful prebuilt queries.
- Native iOS and Android apps, so you can browse CBP data on a phone, which the official sites do not offer.
- A handy consolidated reference for a broker who wants CBP data in one lightweight interface.
- No cost and no signup for the core lookup.
Where it can fall short
- No AI classification, no GRI reasoning, and no description-to-code: it is a manual browse and search, so you do the classifying yourself.
- No duty computation and no Section 301/232/IEEPA/reciprocal or AD/CVD stacking for a shipment.
- No confidence scoring, no audit trail, and no monitoring or alerts.
- It re-indexes government data, so it inherits CROSS’s incompleteness and adds no analytical layer.
- No published API or paid tier and no stated support commitments (not published), so it reads as a light-touch reference rather than a supported product.
The differences that matter
What actually separates them.
A nicer front-end vs. doing the work
CustomsMobile is a genuinely convenient, free way to browse the HTSUS and search the same roughly 221,000 CROSS rulings, and its mobile apps are something the official sites lack. But it is a front-end to government data: it does not turn a product into a code, surface the ruling that applies, or compute a duty. TariffLens does those on top of the same data. If you just want to look things up, CustomsMobile is useful; if you want the classification and the duty done, that is the paid job.
No duty math, no classification
CustomsMobile lets you read the HTSUS and AD/CVD reference material, but it computes nothing: no effective duty, no Section 301/232/IEEPA stack, no landed cost. And it does not classify, you navigate the schedule yourself by section, chapter, and note. TariffLens determines the 10-digit code with GRI reasoning and computes the full US duty stack per origin, so the code, the precedent, and the bill arrive together.
Where CustomsMobile genuinely wins
For free, mobile access to CBP data, CustomsMobile is a real convenience: rulings, notices, the HTSUS, and more in one app, at no cost. TariffLens has no dedicated mobile app and is a paid classification tool. If your need is a quick, free reference lookup on your phone, CustomsMobile is the better fit. TariffLens is the better fit when you need the code determined, the ruling cited for your product, and the duty computed.
Which should you choose?
Choose CustomsMobile if…
- You want a free, mobile-friendly way to browse the HTSUS and search CBP rulings and notices.
- You want several CBP data types (rulings, CSMS, HTSUS, CFR, ports) in one lightweight interface.
- You have the expertise to classify and compute duty yourself and only need the reference data.
- You want CBP data on a phone, which the official government sites do not offer.
Choose TariffLens if…
- You want the 10-digit code determined for you from a product description, not a manual HTSUS browse.
- You want the relevant CBP rulings surfaced and cited for your specific product, defensible in an audit.
- You need the computed US duty stack per origin, which CustomsMobile does not provide.
- You want an auditable artifact with confidence scoring and a review queue, not just a lookup.
FAQ
TariffLens vs CustomsMobile, answered.
Is CustomsMobile free, and can I use it instead of a paid tool?
Yes, CustomsMobile is free and login-free, and it is a handy way to browse the HTSUS and search CBP rulings, including on iOS and Android. What it does not do is classify your product (turn a description into a code), surface the ruling that applies, or compute any duty. TariffLens does those on top of the same underlying CBP and USITC data.
Does CustomsMobile classify products or compute duty?
No. CustomsMobile is a manual browse and search of CBP data (rulings, HTSUS, notices); you classify yourself, and it computes no duty and no Section 301/232/IEEPA/AD-CVD stack. TariffLens determines the 10-digit code with GRI reasoning, cites the relevant rulings, and computes the full US duty stack per origin.
How is CustomsMobile different from CBP CROSS?
CustomsMobile mirrors CROSS (roughly 221,000 rulings) and adds other CBP data (CSMS notices, HTSUS, CFR, US Code, ports) plus native mobile apps, all free. Both are search and reference tools that leave classification and duty computation to you. TariffLens is built on the same data and does that work, with cited rulings and a computed duty.
Does CustomsMobile have an API?
No public API or pricing is published on its site, so a developer API is not confirmed. TariffLens includes a self-serve RESTful API for classification and duty, with cited rulings on every result.
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Sources
CustomsMobile is a trademark of its respective owner. Comparisons reflect publicly available information as of July 2026 and TariffLens's own assessment; they are not endorsed by CustomsMobile. Spotted something out of date? Let us know.