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Free plan on mobile, API, and AI assistant
The same Free allowances apply on the website, the mobile apps, the REST API, and the AI assistant.
Mobile
Sign in with the same account on iOS and Android. Usage limits match the website. Pro on the website is checkout on the web. Pro on iPhone or Android may be sold through the App Store or Google Play under those store terms.
API and AI
When Pro has expired, the account is treated as Free for API access. Authentication succeeds; caps apply as on Free. When a cap is reached, the API returns 402 plan_limit_reached. The assistant reports the limit as an answer, not a crash.
One account
Website, iOS and Android apps, REST API, and AI assistant share the same Free allowances. 20 documents, 200 API calls, and 10 Shopify orders per month are counted on the account, not per surface.
Questions that are not covered here: support@onestopinvoice.com