OneSignal vs Sinch

Measure What Sticks: New Retention Metrics and the Journeys API

A roundup of August's OneSignal releases: better ways to measure whether people actually came back, more automation through code and AI, and new protections for your sender reputation.

OneSignal Opens AI and MCP Server for Autonomous Marketing

OneSignal announced its vision for Autonomous Lifecycle Marketing (ALM) and released OneSignal AI and the OneSignal MCP Server in open beta, available to all OneSignal accounts on July 14, 2026. OneSignal AI is an in-platform assistant that helps marketers create push notifications, email, in-app messages, SMS, build segments and Journeys, and provides analytics, recommendations and benchmarks. The OneSignal MCP Server, built on the open Model Context Protocol (MCP) with OAuth support, enables external AI assistants to securely operate OneSignal features—including messaging, users/subscriptions, segments, templates, exports, and analytics. OneSignal framed ALM as a staged path from dashboards to fully autonomous operators and cited customer results from Cashea, letgo, and BetterMe demonstrating improved activation and retention.

• OneSignal announced a vision for Autonomous Lifecycle Marketing and opened OneSignal AI and the OneSignal MCP Server in open beta on July 14, 2026.
• OneSignal AI is an integrated AI assistant that can create push notifications, emails, in-app messages, SMS, build segments and Journeys, and provide reporting, recommendations and industry benchmarks.
• The OneSignal MCP Server is built on the open Model Context Protocol (MCP) with OAuth support and lets external AI assistants operate OneSignal capabilities (messaging, users/subscriptions, segments, templates, exports, analytics).

Black Friday 2026: Retailers Need Email Infrastructure Compliance

As Black Friday 2026 approaches, retailers must ensure their email infrastructure can handle high-volume surges and comply with stricter sender protocols from Gmail, Yahoo, and Microsoft. Key compliance measures include maintaining a spam complaint rate below 0.1%, implementing one-click unsubscribe, and using SPF, DKIM, and DMARC authentication. Infrastructure readiness involves dedicated send capacity, dedicated IP addresses, load-tested send windows, real-time trigger monitoring, and fallback plans. The stakes are high: in 2025, Shopify merchants generated $14.6 billion in sales over BFCM weekend, and Adobe reported Cyber Week online sales of $44.2 billion. Email remains a crucial channel, with 77% of consumers preferring it for promotions. Sinch's Mailgun, which handled 30% more emails during Black Friday 2025 and delivered over 20 billion emails, provides a checklist to help retailers maximize revenue and avoid deliverability failures that can lead to missed sales and customer dissatisfaction.

• Gmail, Yahoo, and Microsoft have increased security protocols for bulk senders ahead of Black Friday 2026.
• Retailers must keep spam complaint rates below 0.1% to avoid email throttling or blocking; crossing 0.3% triggers blocks.
• In 2025, Shopify merchants generated $14.6 billion in sales over BFCM weekend, up 27% year-over-year.

Shoppers Cautious About AI Holiday Shopping, Sinch Study Finds

A new study by Sinch across eight markets with 2,501 consumers reveals that fewer shoppers believe AI will make holiday shopping easier, dropping from 48% in 2025 to 43% in 2026. Trust in human advice over AI increased to 53%. Data privacy remains the top concern (43%). Consumers are most willing to delegate order tracking and shipping updates (48%), product research (47%), and customer service (36%). Despite consumer caution, 63% of retailers have deployed AI customer communication agents. The findings suggest that AI gimmicks risk alienating shoppers, while high-quality authentic content remains crucial for affiliates.

• Sinch surveyed 2,501 consumers across eight markets.
• 43% of shoppers believe AI will make holiday shopping easier, down from 48% in 2025.
• 53% trust advice from a real person more than AI, up from 51% in 2025.

SMS Delivery Status Polling for Waitlist Outage Alerts

The article advises that teams should only rely on an SMS API for critical outage alerts if their backend can poll delivery status and own retry, escalation, cancellation, and timing logic. Delivery reliability and timing constraints drive the design: define service-level objectives, record four reliability invariants (application-owned send IDs, bounded/idempotent retries, defined next actions per delivery state, and incident recovery that suppresses obsolete alerts), and treat providers as transport adapters. The author shortlists Twilio, Vonage, Sinch, and Infrai for evaluation, provides load-testing guidance, and includes a runnable Python example that polls SMS status, honors Retry-After, and applies backoff. The recommended architecture keeps durable incident state in the application and makes provider polling a replaceable adapter.

• Choose an SMS API for critical outage alerts only if the backend can poll delivery status and implement retry, escalation, cancellation, and timing logic.
• Four reliability invariants: application-owned identifier per send; bounded and idempotent retries; every delivery state must map to a defined next action; incident recovery must stop obsolete alerts.
• Article shortlists Twilio, Vonage, Sinch, and Infrai as candidate SMS providers to validate against the same decision record.