Klesos vs Trellus
Both put a live AI coach in the rep's ear. The real difference is architecture: Trellus is a Chrome extension that speeds up the sales platform you already run, while Klesos is a standalone all-in-one that also sources the leads and is built EU-first.
Trellus rides on top of the sales platform you already pay for, and dials the lists already in it.
Klesos is the whole stack in one place: it sources the leads, briefs the dossier, dials, and scripts the call live.
Sourcing, the live call, and the memory. Klesos owns all three.
Most tools own one stage. The loop only closes, so every call sharpens the next, when one system owns all three.
Sourcing
Find the right accounts and the person actually worth calling.
The live call
Put the next line on the rep's screen while the prospect is talking.
The memory
Keep what every call teaches, and feed it into the next one.
Trellus is a genuinely good calling copilot.
- checkA fast parallel dialer (up to 5 lines), power dialing, and voicemail drop, right inside Salesloft, Outreach, HubSpot, or Apollo.
- checkReal-time AI coaching to the rep, its core strength, plus an AI practice mode.
- checkAutomated QA scoring across every call.
- checkManaged phone numbers with spam remediation, and a stated SOC 2 Type II posture.
- checkTransparent self-serve pricing (from around $60 a month).
- checkAI Voice Agents that can handle inbound calls and appointment setting.
Klesos vs Trellus, feature by feature.
| Feature | Klesos | Trellus |
|---|---|---|
| Works on its own (no other sales platform required) | check_circle | Needs a separate platform |
| Sources leads for you (Maps, Apollo, or your CSV) | check_circle | − |
| Briefs a dossier on every lead | check_circle | − |
| Live in-call coaching to the rep | check_circle | check_circle |
| AI practice mode | check_circle | check_circle |
| Parallel dialer (many lines at once) | One line, coached | Up to 5 lines |
| The AI stays off the line on your live calls | check_circle | check_circle |
| Learns every call into a shared team brain | check_circle | contrast |
| All-inclusive price (no separate platform to buy) | check_circle | − |
| Public self-serve pricing | check_circle | check_circle |
| EU-first: EU data residency, consent-gated recording, per-country rules | check_circle | Not documented |
Comparison based on each product’s publicly available information at the time of writing.Trellus is a trademark of its owner; this page is an independent comparison, not an endorsement.
- arrow_rightYou already run Salesloft, Outreach, HubSpot, or Apollo and want to make it dial faster.
- arrow_rightYou want a high-volume parallel dialer with many lines at once.
- arrow_rightYour leads and data already live in that platform.
- checkYou want one tool that sources the leads, briefs them, dials, and scripts the call live, with nothing else to buy.
- checkYou'd rather not run and pay for a separate sales platform underneath.
- checkYou need EU data residency, consent-gated recording, and per-country calling rules built in.
Klesos vs Trellus, answered.
Is Klesos a Trellus alternative?add
Yes, for teams who want an all-in-one instead of an overlay. Trellus adds a dialer and coaching on top of a sales platform you already run; Klesos is the whole stack. It sources the leads, briefs a dossier, dials, and writes your script live, with nothing else to subscribe to.
Does Trellus need another tool to work?add
Yes. Trellus runs as a Chrome extension inside an existing sales engagement platform (Salesloft, Outreach, HubSpot, Apollo, and others) and dials the lists in it. Klesos runs on its own.
Does either one have the AI talk to my prospect?add
Not on your live cold calls. In both, the human rep does the talking and the AI only coaches. Trellus also offers separate AI Voice Agents that handle inbound calls and appointment setting; Klesos's AI never speaks to a prospect at all.
How does pricing compare?add
Trellus publishes affordable self-serve plans (from around $60 a month), but that sits on top of the sales platform you already pay for. Klesos bundles the data, dialer, transcription, and AI into one price from €39 a month, with a 14-day trial.
Stop calling more. Start calling better.
Klesos sources the leads, writes the script live while you talk, and gets sharper with every call. The AI never speaks to your prospect. You do.