💡 Target Audience: Enterprise CTOs torn between building in-house and settling for legacy SaaS platforms.

TCO is four numbers, and most teams only track one

When a CTO says "our chat platform costs $X a month", that is usually just the subscription line. The total cost of ownership has four components, and the invisible ones are frequently larger than the visible one:

1. Subscription — the number on the invoice.
2. Consumption — egress, per-message or per-MAU charges, video minutes, translation add-ons.
3. Integration — engineer-weeks spent gluing products together, plus the permanent maintenance tail of every seam.
4. Ceiling risk — what happens to items 1–3 the month your traffic triples.

Legacy platforms compete on item 1 and profit on items 2 and 4.

Build a defensible model, not a marketing number

We are not going to tell you "customers save 60%", because that number depends entirely on *your* shape. Instead, here is the model — fill in your own inputs:

Annual TCO =  12 × subscription
           +  12 × (egress GB × egress rate)
           +  12 × (per-user or per-message charges)
           +  12 × (video minutes × video rate + translation add-on)
           +  (integration engineer-weeks × loaded weekly cost)
           +  (maintenance weeks/year × loaded weekly cost)

Two lines usually dominate and are usually missing from the comparison spreadsheet:

• Egress. Pull last month's outbound GB. On HyperBabel that entire line becomes $0 — permanently, on every plan.
• Integration and maintenance. Count the communication SDKs shipping in your app today and the identity mappings between them. Each seam has an ongoing cost that never appears on any vendor's invoice.

For reference, HyperBabel's side of the model is fully public and needs no quote: $0 Free / $99 Basic / $1,999 Scale, with overage at $7.99 per 1M messages, $9.99 per 1,000 HD video minutes, $30.99 per 1M translated characters, $0.03/GB storage and $0 egress.

Predictability is the actual product

• Nothing is billed per person. MAU bursts — the marketing campaign, the app-store feature, the seasonal spike — do not multiply your invoice. Only real traffic does.
• Every rate is published. You can model next year's worst case without opening a sales conversation.
• Overage does not interrupt service. On paid plans metered usage keeps flowing and is billed at the listed rate. Peak concurrent connections is a contractual plan limit rather than a kill switch — we do not drop live connections when you exceed it. The one place things actually stop is the monthly spend limit you set yourself in the console: new sessions pause there while calls already in progress run to the end. (The Free tier is the exception: with no overage billing it simply stops at its limits.)

Latency, stated honestly

HyperBabel runs edge-distributed infrastructure with routing-aware delivery. Our internal measurements show p50 under 65 ms and p95 under 150 ms for message delivery in major markets (Seoul, Tokyo, Frankfurt, US East), measured from client publish to client receive on same-region pairs.

That last clause matters. Cross-continent pairs are bounded by physics, not by architecture — Seoul to São Paulo will never be 65 ms on any platform. Treat any vendor's single latency number, including ours, as a claim to reproduce in your own environment before it enters a decision document.

When staying put is the right call

Migration is not free, and the honest answer is sometimes "not yet":

• You are mid-contract and the remaining term costs more to exit than to finish.
• Your traffic is small and flat. Below roughly a thousand daily active users, platform costs are noise against engineer time.
• Your communication features are frozen. If nothing new is planned, the integration savings never materialise.
• A compliance certification or procurement requirement binds you to a specific incumbent.

Migrate when *at least two* of these are true: egress is a visible line item, your MAU is far larger than your messaging population, or your roadmap has an item the incumbent charges separately for.

The parallel-operation migration pattern

The lowest-risk path never has a "cutover day":

1. Instrument first. Peak concurrency, messages/month, active channels, egress GB, video minutes. One month of real data.
2. Dual-write nothing at first. Route only *new* conversations to HyperBabel; existing threads stay where they are.
3. Migrate history in batches, oldest first, verifying counts per channel.
4. Move webhooks before traffic, so billing, moderation and analytics keep working throughout.
5. Keep the old SDK shipping for one release cycle as a rollback path.
6. Switch reads last. Writes first, reads last — this ordering keeps rollback cheap at every step.
7. Decommission only after a full billing cycle of clean parallel operation.

The 30-second version

Do not compare subscriptions. Compare four numbers — subscription, consumption, integration, ceiling risk — and put egress and engineer-weeks in the spreadsheet. If the model still favours your incumbent, stay. If it does not, the parallel-operation pattern above means you never have to bet the product on a single cutover night.