Honest Comparison
We built Boxset.ai because existing tools don't give you the full picture. See the differences for yourself.
| Feature | Boxset.ai | Warmy | Instantly | Folderly |
|---|---|---|---|---|
| DNS Monitoring (SPF/DKIM/DMARC) | Full Suite | Basic | No | Limited |
| Email Warmup | AI-Powered | Core Feature | Core Feature | Basic |
| Inbox Placement Testing | Built-in | No | No | Yes |
| Blacklist Monitoring | 200+ RBLs | Limited | No | Basic |
| AI Coaching & Recommendations | GPT-4o + Claude | No | No | No |
| Content/Template Analysis | Deep Analysis | No | No | Basic |
| Email Verification | Built-in | No | Basic | No |
| Public API | Full REST API | No | Yes | No |
| Webhooks | HMAC-Signed | No | Basic | No |
| GoHighLevel Integration | Native OAuth | No | No | No |
| Free Tools (SEO) | 10 Tools | 1-2 Tools | No | Limited |
| Starting Price | $147/mo | $49/mo | $30/mo | $120/mo |
Warmy is an excellent warmup tool, but that's where it stops. Boxset.ai gives you the full email deliverability stack.
Best for: Teams that need more than just warmup — full deliverability intelligence and monitoring.
Instantly focuses on cold email sending and warmup. Boxset.ai is purpose-built for email deliverability intelligence.
Best for: Teams using Boxset.ai alongside Instantly — monitor domain health while Instantly handles outreach.
Folderly offers spam fix and placement testing but lacks the depth of Boxset.ai's intelligence platform.
Best for: Teams that want enterprise-grade deliverability intelligence at a competitive price.
GlockApps is a veteran inbox testing tool. Boxset.ai is the modern, AI-first alternative with a broader feature set.
Best for: Teams looking to consolidate multiple email tools into one platform.
Start with our free plan. No credit card required. Monitor 1 domain, run unlimited DNS checks.
Start Free — No Credit CardFree forever plan available. Upgrade anytime.