Aeion Marketing vs Klaviyo, Iterable, Braze
Modern marketing automation vendors charge per-contact pricing that scales linearly with your list growth — Klaviyo $20-1700+/month, Iterable $50K-500K/year, Braze $50K-500K/year, Customer.io $150-2000/month. Aeion Marketing delivers enterprise-grade dispatch + A/B testing + automation journeys + deliverability at $49/mo flat, unlimited contacts, unlimited users — no contact-count tax.
Architectural Differences
No Contact Tax
Klaviyo charges by list size, Iterable by MAU, Braze by MAU + features — all punish list growth. Aeion charges $49/mo flat, regardless of list size. A 100K list and a 10M list cost the same, so scaling your audience is a marketing win, not a line-item you have to justify to finance.
High-Throughput Dispatch
Peak dispatch of 10K+ msgs/sec, achieved by pre-processing every send — subject lines, HTML, and tracking tokens are all resolved before queueing — so stateless BullMQ workers pull a ready-to-send list with no database lookup at send time. Recipients are chunked into isolated batches: one bad batch is retried on its own with exponential backoff and never takes down the rest of the send.
Wilson Score A/B
Legacy tools declare "the variant with more opens" the winner, which is wrong on small samples. Aeion estimates each variant's true performance as a 95%-confidence lower bound (z=1.96) and only auto-selects once the leader's interval clearly beats the runner-up's above a confidence threshold — so you don't optimize toward statistical noise that evaporates as the sample grows.
GDPR Without Data Loss
A right-to-erasure request in most tools hard-deletes the subscriber and orphans every historical metric tied to them. Aeion hashes PII (email, name, IP) with SHA-256 and anonymizes send-level analytics instead of deleting them — aggregate opens, clicks, and revenue attribution survive, while the original PII stays mathematically irrecoverable.
Native CRM + Commerce
Klaviyo + Shopify sells bidirectional sync as a feature you configure and monitor. Aeion Marketing, CRM, and Commerce share one database and communicate over the event bus — a form submission updates the CRM contact in real time with no HTTP round-trip, no Zapier, and no middleware to fail between them.
DMARC Pre-Flight
Aeion probes SPF, DKIM, and DMARC — auto-testing the common DKIM selector patterns major providers use — and grades your sending domain A–F before a single message leaves. Grade C or F blocks the send and alerts an admin, so you catch an authentication gap in minutes instead of spending weeks climbing back out of spam folders.
Where Klaviyo, Iterable, and Braze Still Win
Honest guidance beats a rigged scorecard. These are mature, well-funded platforms, and there are shapes of business where they remain the stronger call.
- Braze is purpose-built for mobile-first consumer engagement at massive scale — its push, in-app message, and Content Card tooling is deeper and more battle-tested than a marketing module that reaches push through the mobile-builder integration. If your primary channel is high-volume mobile messaging into a consumer app with a dedicated growth team behind it, that specialization is real.
- Iterable and Braze carry large pre-built integration catalogs and long track records at enterprise send volumes, backed by dedicated onboarding and customer-success teams. If your requirement is "a named CSM and a marketplace connector for every tool we already own," an incumbent answers that on day one.
- Klaviyo has an unusually deep Shopify ecosystem and pre-built e-commerce benchmarks trained on an enormous dataset. If you run a single Shopify storefront and want turnkey e-commerce flows and category benchmarks out of the box, that ecosystem depth is a genuine head start.
Aeion Marketing's case is different: it wins when marketing shouldn't be a silo. The same $49/mo module that dispatches at 10K+ msgs/sec shares one database with CRM, Commerce, and the rest of the OS — so segmentation, attribution, and automation reach across your whole business without a contact-count tax or a sync layer to babysit. Choose on that axis, not on a feature checkbox alone.
FAQ
Aeion Singularity's Klaviyo connector migrates lists, segments, and flows. Established orgs typically complete migration in 4-12 weeks.
Yes — Aeion's visual journey builder replicates flow logic, and journeys persist state so they can resume mid-sequence rather than restart.
Aeion Singularity migrates event streams, segments, and campaigns. Enterprise deployments typically take 12-24 weeks.
Aeion uses the Wilson Score lower bound at 95% confidence, auto-selecting a winner only once confidence exceeds 0.7 — not just whichever variant has more opens.
Aeion runs DMARC/SPF/DKIM pre-flight checks with 14-selector probing and assigns a deliverability grade from A to F before you send.
Yes — the Singularity connector migrates event-driven workflows.
Aeion charges no MAU tax. Every tenant gets unlimited active contacts at $49/mo flat.