Freedom251 › Sales Dialer Software
Adversus
What Adversus is
Adversus is a cloud-based outbound sales platform for dialing, email, appointment scheduling, lead management and workflow automation. It is aimed at B2C call centers and businesses booking B2B meetings. Dialing can be predictive, progressive, manual or a custom combination. Lead management includes validation, duplicate checking, custom data and automatic removal of expired leads. The service also provides inbound calling, transfers, local phone numbers, marketing campaigns, email and SMS tools. Dashboards and reports organize KPIs by teams, users, campaigns or projects. Quality Assistance uses AI to transcribe, summarize and analyze calls in multiple languages; token-based AI additions cost extra. Listed integrations include beta Zapier, Slack and IntraManager Work and Board. Adversus states 99.97% uptime and advertises free 24/7 phone, chat and email support.
Who it suits
Adversus suits outbound teams, including B2C call centers and businesses arranging B2B meetings. It is also relevant to teams needing multiple dialing modes, KPI reporting and call analysis.
What it does well
- Supports predictive, progressive and manual dialing
- Includes lead validation and duplicate checks
- Provides inbound calls and call transfers
- AI analyzes calls in multiple languages
- Free 24/7 phone, chat and email support
What to know first
- No free plan is listed
- Agent license required for dialer access
- AI add-ons cost extra tokens
- Minimum three licenses on listed plan
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Adversus | annually; €1,520 / month for 10 users · Minimum 3 licenses · Unlimited calls in EU + US · 10% off at 10+ users, 20% off at 20+, 30% off at 30+ · Token-based AI add-ons cost extra | €152 a month |
| Standard annual | annually · minimum 3 licenses · unlimited calls EU + US · 10% discount at 10+ users · 20% at 20+ · 30% at 30+ · AI add-ons extra | €152 a month |
| Standard monthly | monthly · minimum 3 licenses · unlimited calls EU + US · all core features included · AI add-ons extra | €169 a month |
| Custom Pricing | Tailored enterprise packages for teams of 50+ · Dedicated CSM · Advanced onboarding · Custom integrations · Custom SLAs | On request |
| Enterprise | teams of 50+ · dedicated customer success manager · advanced onboarding · custom integrations · custom SLAs | On request |
As adversus.io lists them, read 30 Sept 2026. The maker's own page has the final word.
Verdict
Adversus combines outbound calling, communications, lead controls and reporting for sales teams. Its listed plan requires paid licenses, while some view-only licenses are free and AI additions carry extra token costs.
Facts from Adversus's own pages
- AI
- Quality Assistance uses AI to transcribe, summarize, and analyze calls in multiple languages; token-based AI add-ons cost extra. · adversus.io, 30 Sept 2026
- AI quality assistance
- Quality Assistance transcribes and reviews calls in more than 100 languages using reusable custom review models. · adversus.io, 15 Oct 2026
- API
- The public REST API uses API users, Basic authentication and JSON endpoints for leads, contacts and calls. · help.adversus.io, 15 Oct 2026
- API permissions
- API users can be Admin, Readonly or Custom with route, campaign and pool restrictions. · help.adversus.io, 15 Oct 2026
- Appointment scheduling
- Two-way calendar integration supports booking, reminders, follow-ups and real-time appointment updates. · adversus.io, 15 Oct 2026
- Audience
- The platform is designed for outbound teams, including B2C call centers and businesses booking B2B meetings. · adversus.io, 30 Sept 2026
- Availability
- Adversus states that its service uptime is 99.97%. · adversus.io, 30 Sept 2026
- Call transfer
- Agents can transfer calls to users, campaigns or external numbers and prepare recipients before transfer. · adversus.io, 15 Oct 2026
- Communications
- The platform includes inbound calling, call transfers, local phone numbers, marketing campaigns, and email and SMS tools. · adversus.io, 30 Sept 2026
- Company
- Adversus A/S is a public Danish software company founded in 2015 and headquartered at Sankt Clemens Torv 6A, Aarhus C, Denmark. · linkedin.com, 15 Oct 2026
- Company size
- LinkedIn lists Adversus in the 51–200 employee range. · linkedin.com, 15 Oct 2026
- Dashboards
- Custom dashboards display filtered KPIs and can use AI-assisted KPI creation. · adversus.io, 15 Oct 2026
- Data export
- Warehouse exports support CSV, while SFTP exports can use GPG or password protection; API responses are JSON. · help.adversus.io, 15 Oct 2026
- Data residency
- The required backend is in Denmark and optional recording storage is in France, with recordings kept in the EU/EEA; listed subprocessors use contractual safeguards for transfers. · adversus.io, 15 Oct 2026
- Dialing
- The platform supports predictive, progressive and manual dialing modes with customizable campaign flows. · adversus.io, 15 Oct 2026
- Documentation
- The Help Center organizes articles across calls, campaigns, users, calendars, sales, insights, warehouse, leads, journeys, integrations, messages and compliance. · help.adversus.io, 15 Oct 2026
- Founded
- 2015 · adversus.io, 28 Sept 2026
- Headquarters
- Aarhus, Denmark · adversus.io, 28 Sept 2026
- Inbound calling
- Inbound tools include opening hours, voice messages and callback handling alongside outbound work. · adversus.io, 15 Oct 2026
- Integrations
- Listed integrations include HubSpot, Pipedrive, Zoho CRM, Zapier, Slack, Google Calendar, Microsoft 365, Plecto, Podio, e-conomic, Waytobill and Capturi. · adversus.io, 15 Oct 2026
- Lead management
- Lead administration provides duplicate checks, custom lead fields and automatic deletion of expired leads. · adversus.io, 15 Oct 2026
- Licence and hosting
- Terms describe a hosted cloud service and prohibit copying, modifying, decompiling or reverse engineering, with no self-hosting option stated. · adversus.io, 15 Oct 2026
- License limits
- A paid Agent license is required for dialer access; Insights and Calendar licenses are free of charge and view-limited. · help.adversus.io, 30 Sept 2026
- Limit: contract and usage terms
- Terms require three months' cancellation notice, allow annual fee increases tied to the Danish Net Price Index plus 2%, and impose fair-use limits on telephony and support. · adversus.io, 15 Oct 2026
Where Adversus stands on Freedom251
- Sales Dialer Software#8 of 32