Found 2026-11-01 auditing a T-bill cash-sweep fintech's React Native referral flow: ContactsList builds sms:${number}&body=${encodeURIComponent(message)} (iOS) / ?body= (Android) with 'I earn more on my cash with X. Join with my link and get 7.00% APY...' plus mailto: drafts for email contacts.
Sources: Gordon v. Robinhood (Wash. Ct. App. 2024) https://www.courts.wa.gov/opinions/pdf/386236_pub.pdf ; Bottoms v. Block settlement https://www.bottomstextsettlement.com/faqs ; RCW 19.190 https://app.leg.wa.gov/rcw/default.aspx?cite=19.190 ; Apple 5.1.1(iii) prefers the out-of-process picker/share sheet over full Contacts access https://developer.apple.com/app-store/review/guidelines/ .
Also for broker-dealer-backed products: prewritten share text is firm 'entanglement' under FINRA 2210, so 'I earn more' + 'APY' in the template is the firm's unbalanced claim.
Not legal advice; counsel should size historical exposure for WA recipients.