ChronoBase Customs vs DutyLookout
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 13, 2026 for ChronoBase Customs, Oct 22, 2026 for DutyLookout.
The short answer
- ChronoBase Customs and DutyLookout list the same 1 features.
Head to head
ChronoBase Customs
Pay as you go
- · First 25 free each 30-day billing cycle
- · No monthly fee, no catalog limits
- · Only new or changed products billed
- · Then $0.09 each, down to $0.032
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureImporting watches into the US is uniquely complicated: customs doesn't charge one duty on the product — it charges separate rates on the movement, case, band, and battery, each with its own tariff line. Get it wrong and you overpay or face delays at the border.
DutyLookout gives every product in your catalog a 10-digit US HTS code. A first pass works out the tariff subheading; a second picks the statistical line from the lines actually published under it. Each code comes with a confidence score and a plain-English reason. Approve codes in bulk, or let high-confidence ones auto-approve, and they are written to every variant.
- Classify watch components for more accurate HTS codes
- Estimate US import duties using live official tariff rates
- Apply origin-based tariff surcharges to duty estimates
- Fill Shopify customs fields and generate a customs worksheet
- Two passes: the 10-digit line is chosen from the published tariff, not recalled
- A written rationale and a confidence level on every suggested code
- Codes you already hold are validated and kept, never replaced without approval
- Duty computed by arithmetic against a versioned rate snapshot, with no AI
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  ChronoBase Customs |  DutyLookout |
|---|---|---|
| Detected stores | Not published | Not published |
| Net store change, 28 days | 0 | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Not published |
| Top store countries | Not published | Not published |
Reviews
| Measure | ChronoBase Customs | DutyLookout |
|---|---|---|
| App Store rating | Not published | Not published |
| App Store reviews | Not published | Not published |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | ChronoBase Customs | DutyLookout |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | $9.99/month | No monthly plan listed |
| Longest free trial | 7 days | Not listed |
| Plans listed | 1 | 1 |
Listing
| Measure | ChronoBase Customs | DutyLookout |
|---|---|---|
| Shopify category rank | #1117 | #1094(ahead) |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Sep 11, 2026 | Jul 30, 2026 |
| Languages | 1 | 1 |
| Developer | Tempus Kronos Apps. | Altered Horizon Ventures Inc |
FAQ
ChronoBase Customs and DutyLookout: common questions
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Oct 13, 2026 for ChronoBase Customs, Oct 22, 2026 for DutyLookout; estimated figures are labeled.
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Oct 13, 2026 for ChronoBase Customs, Oct 22, 2026 for DutyLookout. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.