B2B Rocket, Belkins, Callbox — they all require 3–6 month minimums with cancellation penalties. AppointmentFlow runs on a simple monthly subscription. You stay because it works, not because you're trapped.
The Industry Standard
You sign a 6-month contract. Two months in, the results are mediocre. But you can't exit — you've already paid for the term. You're stuck paying for underperformance through the rest of the contract.
Competitors require upfront commitment before proving ROI. If the campaign underperforms, you still pay.
Setup, onboarding, and "strategy" fees are standard — even before a single email is sent.
Research, setup, and strategy phases push actual outreach weeks into the engagement.
Cancel mid-term? You still owe the full contract value. Hard to walk away when it's not working.
How We Stack Up
Data from competitor research on B2B Rocket, Belkins, Callbox, and SuperBurn. All information sourced from their public pricing pages and sales materials.
| Feature | AppointmentFlow Our Pick | B2B Rocket | Belkins | Callbox | SuperBurn |
|---|---|---|---|---|---|
| Pricing & Commitment | |||||
| Contract length | Month-to-month | 3–6 months | 12 months | 6–12 months | 3–6 months |
| Setup fee | $0 | $1,500–$3,000 | $2,500–$5,000 | $1,000–$2,500 | $500–$1,500 |
| Minimum monthly spend | $297/mo | $1,000/mo | $2,000/mo | $1,500/mo | $800/mo |
| Cancel anytime | ✓ Yes | Early exit fees | No mid-term exit | 60-day notice + fees | 30-day notice |
| Onboarding & Setup | |||||
| Time to first email | 3–5 days | 4–6 weeks | 6–8 weeks | 4–6 weeks | 2–4 weeks |
| Onboarding process | Guided 3-step wizard | Discovery call + setup | Strategy intensive | Account manager setup | Self-serve + call |
| Key Differentiators | |||||
| AI personalization | Yes — neighborhood + ICP | Template-based | Generic AI copy | Scripted sequences | Template-based |
| Email warmup included | Yes — managed rotation | Extra cost | Extra cost | Separate service | Extra cost |
| Follow-up automation | Yes — 3–5 step sequences | Limited | Basic drip | Manual trigger | Basic drip |
| Dashboard visibility | Real-time — opens, clicks, replies | Weekly reports | Monthly summary | Monthly summary | Weekly reports |
| Dedicated account manager | Growth plan + | Yes (extra cost) | Yes (all plans) | Yes (all plans) | Email only |
Data sourced from B2B Rocket (b2brocket.io), Belkins (belkins.io), Callbox (callbox.com), and SuperBurn (superburn.io) public pricing pages, reviewed June 2026. Pricing and terms subject to change — verify with each vendor directly.
Why It Works
When there's no contract, you only continue if the ROI is real. That accountability means we're relentless about getting you results — not just signing you up.
Zero setup fee means we invest in getting you live before you pay anything material. If we can't deliver in 5 days, you haven't lost thousands.
With month-to-month, every month is a re-earn of your business. That keeps the quality of our outreach sharp — no coasting on a 6-month contract.
Real Businesses, Real Results
"I was nervous about committing to another agency after my last one wasted 4 months with no appointments. AppointmentFlow was live in 4 days and I got my first reply in week two. No contract meant I could walk away if it was bad — but it wasn't bad."
"My previous agency had a 6-month contract and I wanted out by month two. With AppointmentFlow, I'm still here 8 months later — not because I have to be, but because the appointments keep coming in."
"Called Belkins and they wanted $3,500 setup plus a year contract. AppointmentFlow got me running for $297/mo with no setup fee. I booked 19 appointments in my first month."
Start with a free 30-minute strategy call. No contract. No commitment. Just a clear plan for your first 30 days.
No credit card. No setup fee. Cancel anytime.