Email opens are decaying
Apple Mail privacy, Gmail tabs, list fatigue, deliverability shifts. Every quarter the open rate slips and the cost per converted send rises. SMS resets that math.
Tells gives agencies and in-house growth teams a full SMS campaign engine. Segmentation, A/B testing, multi-touch flows, real attribution back to the CRM. Multi-brand workspaces for portfolio teams, SMS + RCS + AI agents in one stack for everyone else.
The problem
Marketing teams have squeezed every drop out of email send-volume and paid social CPMs. The next dollar of growth is in SMS, which converts faster, opens more, and never sends you an algorithm-change email at 3 AM. Tells is built for the way agencies and growth teams actually run portfolio-scale campaigns.
Apple Mail privacy, Gmail tabs, list fatigue, deliverability shifts. Every quarter the open rate slips and the cost per converted send rises. SMS resets that math.
The platforms charge more to reach the audience you built, then change the algorithm. Owned channels stop the rent. SMS is the cheapest direct line to the customer who already said yes.
Most SMS vendors blast the list and call it a day. No behavior segmentation, no cohort A/B testing, no flow branching. Marketing tooling that lives inside the CRM is the difference between revenue and a STOP wave.
Open rates and CTRs do not pay the bill. Growth teams need revenue, leads, calls booked, and LTV attached to the send, stitched back to the CRM and the warehouse. Most platforms cannot close that loop.
The path
Connect the data, build the flows, layer RCS where it pays off, and measure revenue rather than opens. A week to first send, a quarter to compounding revenue.
Bidirectional connectors to HubSpot, Salesforce, HighLevel, Klaviyo, GA4, and the warehouse. Segment from the same source of truth the rest of marketing already uses. See integrations for the supported stacks.
Drag-drop builder or full API control. Slice by behavior, geo, lifecycle, spend tier. Branch flows on engagement so the next message reacts to what the customer just did.
Verified brand sender, rich cards, carousels, and one-tap reply chips for premium moments. Start on SMS, promote winners to RCS, see ticket size move on the cohort that gets the richer card.
Per-campaign, per-flow, per-cohort attribution back to the CRM and the warehouse. Revenue, lead source, CAC, and LTV stitched to the send so the next quarterly plan is built on real signal.
Where it shows up
Six plays that cover the bulk of revenue-driving SMS programs. Each one ships with templated flows, default attribution, and a sane consent posture so the team is shipping, not configuring.
Slice the list by behavior, geo, lifecycle stage, spend tier, or a combined audience. Hold-out groups built in so the lift number is honest, not a marketing slide.
Day 0, day 3, day 7 sequences with branching on opens, clicks, and conversions. The flow reroutes the prospect to the next-best message instead of pushing the same one twice.
Copy, offer, timing, channel, all under one experiment. Auto-promote winners to the rest of the cohort once statistical power lands. No spreadsheets, no math fights.
Agencies running 10+ brands, in-house teams running 3 product lines. Separate sender, separate consent, separate reporting under one team workspace. Switch brands like Slack workspaces.
Every send tracked back to the downstream order, lead, call, or booked event. Revenue, lead source, CAC, and LTV land in the CRM so the next campaign is funded by the last one, not by hope.
Replies routed through an AI agent for the FAQ and the "what is my order status" volume. Humans take the warm responses with the full thread already on screen.
Why Tells
Most SMS vendors think they are selling pipes. Tells thinks like a marketer. Multi-brand workspaces, real attribution, RCS and AI in the same stack, and consent management that is one less ticket on the legal team's queue.
Agencies switch brands like Slack workspaces. Separate data, separate sender, separate reports, shared team. No spinning up new accounts, no copy-paste templates between tenants.
Revenue, lead source, CAC, and LTV stitched back to the CRM and the warehouse. The board meeting talks about dollars per send, not opens per send. Integrations push the data both ways.
Start on SMS, layer RCS for premium moments, add an AI agent for inbound, all on the same sender, the same consent ledger, the same dashboards. No vendor swap to add the next channel.
Consent management, STOP and HELP handling, segmentation by jurisdiction, 10DLC and short-code routing live inside the platform. See our compliance posture for the controls we maintain on the wire.
From the blog
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Read more →Tells built a named AI compliance layer that audits outbound SMS campaigns across 30 intelligence categories in real time, before a single m…
Read more →MMS is a photo. RCS Rich Cards are interactive mini-apps with tap-to-buy buttons, verified sender badges, and 3x better conversion. Here's w…
Read more →Pilot in a week on one brand or one segment. Segmentation, A/B testing, multi-touch flows, real attribution, all measured against the last 90 days of email so the lift is impossible to argue with at the next QBR.