Trengo Pricing 2026: Boost, Pro and How the Conversations Model Actually Bills

Trengo Pricing 2026: Boost, Pro and How the Conversations Model Actually Bills

Trengo's pricing is laid out in three clean plans on the pricing page: Boost from €299, Pro from €499, Enterprise on request. What sits underneath is significantly more complex. In 2024 Trengo rebuilt the entire model — away from classic pay-per-seat, toward a conversations model with 7-day windows, fixed seat packages, and a wallet that bills WhatsApp, AI, and voice in real time.

I'm Johannes, founder of Chatarmin. I've gone through the current Trengo pricing, the Help Center, and the Capterra and G2 reviews — and I'm looking at what you really pay when you use Trengo for your e-commerce shop.

Up front: I have nothing against Trengo. The tool gets a few things right. But if you want to know what actually lands on your invoice at the end of the month, you need more than the list price.

Trengo Pricing 2026 at a Glance

Here's the current Trengo pricing structure, straight from trengo.com/prices:

Three things stand out positively: No setup fee on any plan. Some enterprise competitors charge €500 to €1,000 just for onboarding. Trengo is EU-based (Netherlands) and passes WhatsApp costs through to Meta 1:1 with no markup. White-labeling is included even on the cheapest plan.

What's immediately noticeable: You don't buy individual seats, you buy packages. 10 or 20 users — nothing in between. And the Boost plan has no API access. If you want to connect Trengo to your Shopify flow, your ERP, or a custom dashboard, you need the Pro plan — which means at least €499/month. Premium integrations like Salesforce or Microsoft Dynamics are also Pro-only.

The Conversations Trap: 7-Day Windows as a Cost Driver

Trengo no longer bills per seat since 2024 — it bills per conversation. Sounds fair. Reality is different.

A conversation, according to the Trengo Help Center, is any outbound message or reply to a customer inquiry. Logical so far. The catch: Every conversation has a 7-day window. If your customer replies on day eight, that counts as a brand-new conversation — and eats into your quota.

Translation: A return claim with follow-up questions easily runs over two weeks. That's not one, but two or three conversations. Same customer. Same issue. If you want a clean cost calculation, you also have to factor in WhatsApp costs in detail — those run separately through Meta.

Inbound vs. Outbound: Two Different Cost Drivers

Inbound support chips away at your quota silently. 30 inquiries per day sounds modest — but that's 900 conversations per month. With no peaks. On Black Friday this triples. For returns, complaints, and warranty cases that drag on for weeks, a single case can generate three to four conversations.

Outbound campaigns are the bigger lever. Two WhatsApp campaigns per week to 200 recipients each is 1,600 conversations per month. Anyone running weekly broadcasts to 1,000+ contacts (product launches, restocks, flash sales) hits 4,000+ conversations from marketing alone.

The math for a mid-sized shop:

In other words: Just under 32,000 conversations per year — on a Boost plan that includes 6,000. After 2.3 months, you're done. Even the Pro plan with 18,000 conversations doesn't last eight months.

Carry-Over — the Critical Contract Detail

On annual plans, you can roll unused conversations within the annual cycle into the following month — the Help Center confirms this directly. On monthly plans, they expire at month-end with no refund.

That makes the annual plan more attractive for seasonal shops. If you only need 500 conversations across January and February combined, you can carry the remaining 500 into March. Constantly high volume? Carry-over doesn't help — you'll still need conversation blocks or overage budget.

The Small-Team Trap: €299 for Three People

This is where it gets painful for small teams. The Boost plan starts at €299 and includes 10 user seats. Not flexible.

You're a D2C brand with a founder, a CS manager, and one working student? You still pay for 10 seats. That's €99.67 per actually used seat. For a tool with no API access.

In SaaS this is called a "growth tax" — you pay for capacity you don't need, in the hope of one day growing into it. For a scale-up with 8–10 agents that might work. For a bootstrapped e-commerce team it's simply too much burn rate.

And the jump to the Pro plan? A price increase of roughly 67% — from €299 to €499. No gentle transition. There's no plan for 12 or 15 users. You either grow into it or you overpay.

Hidden Costs: AI Surcharges, Wallet, and Voice

List prices are one thing. Real costs are another.

AI Surcharges: When Automation Generates Its Own Costs

Trengo promotes its AI features prominently — AI HelpMate with Autopilot and Suggested Replies. What's communicated less prominently: After the free allowance is used up, every additional AI conversation costs €0.25 for annual customers and €0.30 for monthly customers, according to the Trengo Help Center.

The free allowance on the Boost plan: 50 Suggested Replies conversations per month (monthly contract) or 600 per year (annual contract). All Autopilot conversations are billed from the wallet from the very first use — no free tier.

500 AI conversations per month? That's €125 to €150 extra. Per month. Annualized: €1,500 to €1,800 just for AI usage.

Trengo advertises a "50%+ resolution rate" for AI HelpMate but doesn't publish an independently verified benchmark. The new AI Journeys feature is also still in beta, per Trengo's own pricing page — final pricing and packaging may change. Anyone wanting a neutral comparison of AI-powered WhatsApp support will find more cost-side context in the WhatsApp marketing software comparison.

The Wallet System: Prepaid with Auto Top-Up

WhatsApp, SMS, and voice costs don't run through your monthly invoice — they run through a prepaid balance, the Trengo "wallet." AI surcharges are also deducted here, even though they're not a third-party service.

When the balance is empty, auto top-up kicks in. And here it gets interesting. According to the Trengo Help Center, it works like this:

1. The over-usage is recharged in full — meaning everything you've used beyond your balance.
2. On top of that, extra balance is added for the remaining days of the cycle, calculated from your daily average usage.
3. This extra balance is capped at €500 — but the over-usage stacks on top.
4. With multiple auto top-ups, individual invoices can reach up to €9,500 per the Help Center.

Translation: If you don't configure the wallet system from day one, you lose cost control. The often-quoted "€500 per top-up" tells only half the story. Anyone burning through their balance pays the full deficit plus the €500.

Tip: Set the auto top-up limits manually to the maximum amount you're willing to lose per week. And check the wallet balance weekly. That doesn't prevent the costs — but it prevents the surprises.

WhatsApp Costs: Marketing vs. Service

Trengo passes Meta's WhatsApp costs through 1:1 — no markup. That's fair. But: Marketing templates (campaigns, newsletters) are significantly more expensive at Meta than service conversations within the 24-hour window. Anyone using WhatsApp primarily as a marketing channel needs to budget Meta costs separately per campaign. That's quickly €200 to €400 extra per month — before Trengo earns a single cent.

Additional Users and Voice

Need more than the included 10 or 20 users on your plan? Each additional seat costs between €25 and €30 per month, depending on billing cycle. Voice/telephony isn't standard on Boost or Pro — it's an add-on. Voice runs on Twilio in the background — Twilio's rates apply on top.

What Trengo Users Report on Review Platforms

Beyond the structural costs, there are community experiences worth knowing. You won't find them on Trengo's website.

Price Adjustments and Forced Migrations

On Capterra, verified reviewers describe a doubling of their monthly price after the 2024 model shift. Anyone who previously had a cheaper legacy package was migrated into the new plans — no opt-out, no grandfathering. Several reviewers explicitly warn that another such model shift could happen.

What this means for you: Don't budget based only on today's price. SaaS providers that radically shift their model once tend to do it again. Build in a 15–20% buffer on the current pricing structure if you're planning long-term.

G2 and Capterra Side by Side

Trengo holds 4.3 out of 5 stars on G2 (245 reviews) and 4.1 out of 5 on Capterra (26 reviews). Solid scores. Recurring criticism in the reviews:

• Missing draft function: Multiple Capterra reviewers miss the ability to save message drafts.
• Mobile app: Described in several reviews as slow and buggy — relevant for teams that need to reply on the go.
• Data export: One Capterra reviewer describes data export as "only possible through a complicated API process" and compares the feeling to "being held hostage."
• Support quality: Repeatedly mentioned that customer support visibly drops off after onboarding.

None of these are dealbreakers for every use case. But if you depend on mobile usage or need fast data exports, validate these points during a trial.

Trengo Costs in Practice: Two Worked Examples

Example 1: Small D2C Team (3 people, support only)

Setup: Jewelry brand, 3 agents, ~15 tickets per day, no WhatsApp marketing, inbound support only via email and chat.

€324 per month for three people — that's €108 per person for a tool with no API access. Conversations check out (15 tickets × 30 days = 450/month, 5,400/year — just under the 6,000 cap). But the moment you grow, you're stuck.

Example 2: Mid-sized Fashion Shop (8 agents, active WhatsApp marketing)

Setup: 8 support agents, ~40 tickets per day, 3 WhatsApp campaigns per week (500 recipients each), AI automation active.

Over €14,000 per year. Of that, only €5,988 is on the pricing page. The rest — more than half — is variable cost and add-ons you only notice when the first invoice lands. Or when auto top-up fires.

What Trengo Does Right

My take: Trengo doesn't do things right — they do a few things well. Here's the list that belongs in any honest analysis:

No setup fee. €0 onboarding cost on every plan. Enterprise competitors like Intercom or Zendesk easily charge €500 to €1,000 for setup alone.

EU hosting and GDPR compliance. Trengo is based in the Netherlands and hosts on Amazon Web Services. Contracts run on the EU GDPR Data Processing Addendum with Standard Contractual Clauses. For brands that care about EU data processing, that's a real argument — even though AWS hosting carries some residual risk via the US CLOUD Act. Anyone going deeper on this topic will find the key points under GDPR-compliant WhatsApp marketing.

Omnichannel inbox. Email, WhatsApp, live chat, social media, voice — all in one interface. For teams that need to centrally route a high volume of incoming messages, it's a well-built system.

Carry-over on annual plans. Unused conversations don't expire at month-end — they roll over within the annual cycle. A real benefit for teams with seasonal volume.

No markup on WhatsApp costs. Meta rates are passed through 1:1. Not a given — some competitors mark up by 10–20%.

Trengo Pricing: Three Scenarios, Three Recommendations

Scenario 1: Small Team (2–5 people)

You pay €299 for 10 seats, of which you use 3. No API access. Recommendation: Trengo is uneconomic here. Look at tools that bill per seat — or solutions that bundle inbox and automation in one package without forcing seat pre-buys.

Scenario 2: Mid-sized Support Team (8–15 people)

You sit in the sweet spot of either the Boost or Pro plan. The seat packages roughly fit, the omnichannel inbox makes sense. Recommendation: Trengo can work — budget the variable costs (AI, wallet, conversations) realistically with 30–50% on top. If you need API access, go straight to Pro.

Scenario 3: Growing E-Commerce Brand on a DACH Stack

You run a shop on Shopify, Shopware, or JTL and need AI-driven support that actually cancels orders, changes addresses, and triggers returns — not just generates text. My take: Trengo is a decent inbox. For e-commerce with real workflow requirements, it's too generic. In that case, armincx is worth a look — purpose-built for e-commerce brands in the DACH market.

Frequently Asked Questions about Trengo Pricing

What does Trengo cost monthly?

The Boost plan is €299/month (annual) or €349 (monthly), the Pro plan €499 vs €599. Realistically, expect 30–50% in variable costs on top.

Is there a free version of Trengo?

No. Trengo only offers a 7-day trial without credit card. After that, the entry point is €299/month with 10 fixed user seats.

What counts as a "conversation" at Trengo?

Any outbound message or reply to an inbound inquiry, valid for a 7-day window. If the customer writes again after those seven days, it counts as a new, billable conversation.

Do unused conversations expire at month-end?

Yes, on monthly contracts they expire without refund. On annual contracts you can roll unused conversations into the next month within the annual cycle.

How high are Trengo's AI surcharges?

After the free allowance, each AI conversation costs €0.25 (annual) or €0.30 (monthly). The Boost plan includes 50 Suggested Replies conversations per month (or 600 per year) — Autopilot conversations are billed from the wallet from the very first use.

Do I have to pay extra for WhatsApp messages on Trengo?

Yes. Trengo passes the Meta WhatsApp Business API costs through 1:1. Marketing templates are significantly more expensive than service conversations and run through the wallet system.

Is there a setup fee at Trengo?

No. €0 onboarding cost on every plan. Compared to enterprise solutions that charge four-figure onboarding fees, that's a clear plus.

How does the Trengo wallet system work?

Trengo uses a prepaid balance for WhatsApp, SMS, voice, and AI costs. Billing happens in real time via this wallet — not at month-end. When the balance runs empty, auto top-up kicks in.

What is "auto top-up" at Trengo and how much actually gets billed?

Auto top-up automatically recharges your wallet when it's empty: full over-usage plus up to €500 in extra balance. With multiple top-ups, individual invoices can reach up to €9,500, per the Help Center.

Is Trengo GDPR-compliant?

Yes. Trengo is based in the Netherlands, operates under an EU GDPR DPA with Standard Contractual Clauses, and hosts on AWS. AWS hosting carries some residual risk via the US CLOUD Act.

Is the Boost plan worth it for small teams?

No, rarely for teams under 5 people. You pay €299/month for 10 fixed seats — even if you only use 2 or 3, and without API access.

Are Trengo prices stable?

No, not consistently. Trengo radically shifted its model in 2024 — verified Capterra reviewers report price doublings post-migration.

Can I cancel Trengo monthly?

Yes, monthly contracts are available — but roughly 17–20% more expensive than the annual plan. Monthly plans also let unused conversations expire at month-end.

Is Trengo better than Zendesk?

Depends on your setup: Trengo is cheaper to start with and stronger on WhatsApp/social — Zendesk is more comprehensive on ticketing and enterprise workflows.

What happens if I exceed the conversations limit?

You can purchase additional conversation blocks one-time or upgrade your standing commitment. Without action, an overage surcharge applies, billed separately per the Help Center.

What's the alternative to Trengo for e-commerce?

If you're looking for an AI-first customer service tool with deep DACH integrations — Shopify, JTL, Xentral, Shopware — and not just a generic omnichannel inbox, the Trengo alternatives comparison gives you a detailed overview. A specialized option is armincx, with real workflow execution (cancellation, address changes, returns) instead of just text replies.

Book a 45-minute demo and find out if armincx fits your setup →