Observed arrival · 2026-09-18

Textmast Wants Your SMS to Actually Arrive

textmast.com Visit website

Editorial interest 79/100 Selection signal · not a rating of the site

A UK messaging platform combining a transactional SMS API, shared inbox, campaigns, and automations.

Landing page captured for the 2026-09-18 issue.

For: Teams sending transactional or operational SMS
Worth noticing: The sandbox includes test numbers that fail deliberately, letting developers build error handling before going live.

Field notes

The platform connects API sends, team replies, campaigns, and automated follow-ups so an opt-out or inbound response can carry across workflows. Its developer-facing details include idempotency keys, cursor pagination, signed webhooks with replay protection, and deliberately failing sandbox numbers. The homepage states that test keys appear after signup and advertises £5 of credit, while pricing is listed at 3.5p per message with no credit bundles or expiry.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

$PaidCommerce or pricing visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

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