7 Adversus Alternatives That Won't Waste Your Budget
You just pulled up the Adversus renewal - €169/user/month on annual billing, three-seat minimum, so you're looking at €507+/month before you've even dialed. For pure outbound, Adversus is genuinely good. But if you need inbound routing, if the bugs and localization gaps are wearing you down, or if you simply can't justify that price-to-scope ratio, it's time to look at alternatives that actually fit your workflow.
We left out Talkdesk, RingCentral, and Genesys - they're full CCaaS platforms that most Adversus teams won't realistically switch to for a straightforward outbound dialer use case. Here are 7 you could actually move to.
Why Teams Leave Adversus
Adversus earns its 4.8/5 on G2 (51 reviews) and 4.5/5 on Trustpilot (101 reviews). Support is excellent, onboarding is smooth, and for outbound-only teams it's a productivity machine. The cracks show in three places.
Inbound handling. G2's own AI summary flags it, and individual reviews spell it out: "The inbound calls could be handled better." If your team takes callbacks or runs blended campaigns, you feel the gap daily.
Bugs and localization. Trustpilot reviewers mention the German translation lagging behind and intermittent UX issues that erode trust over time.
Price. At €169/user/month (annual), a 5-seat team pays €10,140/year - and that's before token-based AI add-ons. For a tool that doesn't shine on inbound, that's a tough sell to finance.
Our Picks (TL;DR)
Best overall value: JustCall - starts at $29/user/month, broad feature set, 2-seat minimum.
Cheapest entry point: CloudTalk - from €19/user/month, but budget €40-60 realistically since dialer features are add-ons.
Best for blended inbound/outbound: Aircall - $30 (Essentials) to $50 (Professional) per license/month on annual billing, with strong routing, IVR, and integrations.
Here's the thing: if your average deal size is under five figures, you probably don't need Adversus-level pricing. JustCall at $49/user/month covers 90% of what Adversus does for outbound, plus it actually handles inbound.
How to Choose the Right Dialer
Not every dialer works the same way, and picking the wrong type wastes money fast. Manual dialers give reps full control - click-to-call, prep time between contacts, ideal for high-touch enterprise selling. Progressive/power dialers queue one contact per available rep, keeping a steady rhythm. Predictive dialers dial multiple numbers simultaneously and connect reps only when someone picks up, built for teams that need 400+ dials/day.
Adversus's own framework puts the number at 2x as many calls per rep per day versus manual dialing. That's real, but only if you also check for native CRM integration, local presence dialing, compliance features like DNC lists and time-zone enforcement, and - the one people miss - fair usage policies on "unlimited" calling. Every tool on this list has some version of a FUP buried in the fine print.
If you're considering parallel dialers like Nooks or Orum, tread carefully. A Reddit thread on r/sales describes a team whose connection rates plummeted after adopting parallel dialing - numbers got spam-labeled, reps didn't know who answered, and the vendor wouldn't let them exit a two-year contract. One commenter switched to Callcloud integrated with Salesloft and reported better rep adoption at a lower price. Parallel dialing can work, but the deliverability risk is real.
A better dialer means nothing if your reps are calling wrong numbers. Prospeo gives you 125M+ verified mobile numbers with a 30% pickup rate - that's 3x what ZoomInfo delivers. Load your new dialer with contacts that actually connect.
Fix the data before you fix the dialer.
The 7 Best Adversus Alternatives for 2026
JustCall
Use this if you want a broad feature set under $100/user/month with a low seat minimum.
Its three tiers - $29 (Team), $49 (Pro), $89 (Pro Plus) - all require just 2 licenses, making it accessible for small teams. Pro Plus gets you advanced analytics and AI coaching. For predictive dialing up to 10 lines, you'll need the SalesPro add-on, which is quote-based.
Skip this if you take "unlimited calling" at face value. We've run the numbers on JustCall's Fair Usage Policy, and auto-dialer patterns trigger restrictions faster than you'd expect on the Team tier. SMS fees add up too - $0.008-$0.009 per unit. Budget for the AI add-ons ($9/user for Review Assist, $99/month for AI Voice Agents) if you want the full stack.
CloudTalk
CloudTalk's Lite plan at €19/user/month (annual) with no seat minimum is the cheapest entry point on this list. It carries a 4.4/5 on G2 (1,384 reviews). The international coverage is its real differentiator - local numbers in 160+ countries, which matters if your SDRs are dialing across Europe or APAC.
Here's the catch: that €19 doesn't get you a power dialer. Preview dialer, power dialer, and parallel dialer (up to 10 lines) are all add-ons. An outbound team should budget €40-60/user/month once you layer in the dialer features you actually need. "Unlimited calls" in the US and Canada come with a fair usage policy and exclusions - you'll need to contact CloudTalk to activate it. The €19 headline is misleading for anyone doing serious outbound.
Aircall
Aircall is known for its integration ecosystem. HubSpot, Salesforce, Intercom, Zendesk - the native connections are deep, not just webhook-level. It holds a 4.4/5 on G2 (1,314 reviews). If you run blended inbound and outbound and need a dialer that plays nicely with your CRM, this is the pick.
Essentials starts at $30/license/month (annual), Professional at $50. Inbound and internal calls are unlimited, toll-free excluded. The 3-license minimum on Essentials and Professional means solo operators and 2-person teams are out. Add-ons stack up: extra numbers at $6/month each, analytics at $15/license/month, AI features at $9/license/month. A 5-seat Professional setup with analytics and AI runs roughly $370/month - still less than half what Adversus costs for the same headcount, and you get proper inbound routing on top.
Kixie
| Pros | Cons |
|---|---|
| Sales-focused power dialer with multi-line capability (up to 10 lines) | Pricing is completely opaque - no published rates |
| 7-day free trial, no credit card required | Reddit's #1 complaint: one buyer reported $290/month for a single user and called it "super scammy" |
| AI Human Detection available ($30/month add-on) | US/Canada calling only |
| 4.7/5 on G2 - highest-rated tool on this list | You won't know your price until you talk to sales |
Expect ~$35-65+/user/month depending on tier. Kixie doesn't publish prices on its pricing page. If pricing transparency matters to you, look elsewhere.
PhoneBurner
Use this if you want a dedicated power dialer without the complexity of a full contact center platform. PhoneBurner starts around $165/month. Real estate and insurance teams gravitate toward it for the one-click voicemail drop and streamlined cadence management. It carries a 4.7/5 on G2.
Skip this if you need predictive dialing, inbound routing, or a broad integration ecosystem. PhoneBurner does one thing well, but it's a specialist tool. For most B2B sales teams comparing Adversus alternatives, it's too narrow.
Five9
Enterprise-only. Five9's published pricing starts at $119/seat/month (Digital) and $159/seat/month (Core), with a 50-concurrent-user minimum. If you're reading an article comparing Adversus alternatives, Five9 isn't for you. It's built for 50+ agent contact centers with dedicated IT teams. We're including it because it shows up on every comparison list, and you deserve to know why you should ignore it.
Convoso
High-volume outbound and lead gen specialist. Pricing is quote-based - expect ~$100-200+/user/month depending on volume and features. If you're running a large-scale telemarketing or fundraising operation with 20+ agents, Convoso is worth a demo. For everyone else, it's overkill.
Pricing Comparison
| Tool | Starting Price | Min. Seats | Dialer Type | "Unlimited" Caveats | Best For |
|---|---|---|---|---|---|
| Adversus | €169/user/mo (annual) | 3 | Predictive/Progressive/Manual | Unlimited calls EU + US + Canada | Outbound-only teams with budget |
| JustCall | $29/user/mo (annual) | 2 | Predictive (add-on) | FUP applies | Small teams, broad features ★ |
| CloudTalk | €19/user/mo (annual) | 1 | Power/Parallel (add-ons) | FUP; contact to activate | International calling |
| Aircall | $30/license/mo (annual) | 3 | Inbound routing + outbound calling | Toll-free excluded | Blended inbound/outbound |
| Kixie | ~$35-65/user/mo (est.) | Not public | Power (up to 10 lines) | US/CA only | Sales teams OK with opaque pricing |
| PhoneBurner | ~$165/mo | 1 | Power | Standard limits | Single-channel power dialing |
| Five9 | $119/seat/mo | 50 concurrent | Predictive/Progressive | Usage-based | 50+ seat contact centers |
| Convoso | ~$100-200+/user/mo | Quote | Predictive | Quote-based | High-volume lead gen |
★ JustCall wins on overall value for most teams switching from Adversus. Aircall wins if inbound matters.
Fix Your Data Before Switching Dialers
Look, we've seen this play out dozens of times. Your SDR manager is complaining that half the phone numbers are disconnected. The problem isn't the dialer - it's the data feeding it.
If you're rebuilding lists at the same time, start with sales prospecting techniques that match your dial volume and ICP, then use a proper data enrichment layer to fill gaps before you verify anything.
Teams spend weeks evaluating dialers, migrate their lists, and immediately hit the same connect rate problems they had before. The dialer changed. The garbage data didn't. Before you load a single list into your new platform, run it through a verification layer. One of our customers, GreyScout, cut their bounce rate from 38% to under 4% and saw pipeline jump 140% just by cleaning their data before it hit the dialer.
If you're also running email alongside calls, watch your email bounce rate and fix email deliverability before scaling volume.
You're saving hundreds per seat by switching from Adversus. Put some of that budget into data that fills your dialer with real decision-maker numbers. Prospeo delivers 98% email accuracy and verified direct dials at $0.01/lead - no contracts, no sales calls.
Spend less on the dialer, invest in contacts that pick up.
FAQ: Adversus Alternatives
Does Adversus offer a free trial?
Yes. You'll need a minimum of 3 agent users to get started, and pricing locks in at €169/user/month on annual billing once the trial ends.
What's the cheapest alternative to Adversus?
CloudTalk starts at €19/user/month (Lite, annual) with no seat minimum, but dialer features are add-ons - budget €40-60 realistically. JustCall at $29/user/month is the cheapest option with dialing included out of the box, making it the better value for actual outbound work.
Can Adversus handle inbound calls?
Barely. It's built for outbound, and G2 and Trustpilot reviews consistently flag weak inbound handling as a top complaint. If you need blended inbound/outbound, Aircall or JustCall are significantly stronger options with proper IVR, routing, and queue management.
How do I avoid calling disconnected numbers after switching?
Verify your contact list before loading it into any new dialer. Prospeo's Mobile Finder covers 125M+ verified numbers with a 30% pickup rate and refreshes data every 7 days. Upload a CSV, export verified contacts, and push them to your dialer - reps dial live numbers instead of dead ones.