First beta customer results — see the full case study
The Problem
From “test and pray” to repeatable uplift.
Right now you split sends 50/50 across your variants and hope for the best. Half your volume goes to the loser — that’s leads you can never reach again seeing your worst copy. Apex Overlay watches which variants earn real replies and shifts sends away from losers automatically, while campaigns are still running.
- Stop burning sends on obvious losers.
- See the winning variant get more volume within days.
- Zero manual work — no pausing, no spreadsheets, no guessing.
The Solution
One tool. Every campaign. More replies.
Apex Overlay sits on top of Instantly.ai. It watches which email variants get real replies, then shifts your sends away from losers automatically — while campaigns are still running. No migration, no code, no new workflows.
Apex Overlay
Apex Overlay connects to your Instantly.ai campaigns and automatically shifts volume toward whichever variants are getting real replies. Your reply rate goes up. Your wasted sends go down.
- Automatically shifts sends away from losing variants so you stop burning good leads on weak copy.
- Ignores bot opens and only counts real human engagement — replies, clicks, and genuine opens — so decisions are based on real data.
- Works across all your campaigns at once, so you stop manually checking which variant is winning and copying it over.
Built-in reporting shows you exactly which variant works best for each persona, market, and list — so you write better copy next round.
LinkedIn outreach optimization
RL policies for high‑volume LinkedIn outreach — who to touch, when to follow up, and when to stop.
- Experimenting with connection paths, follow‑up timing, and angles.
- Built from the same lab notes that power Apex Overlay.
How It Works
Three steps. Zero babysitting.
Traditional A/B testing makes you wait weeks for a winner, then manually swap variants. Apex Overlay skips that entirely. It watches which variants earn real replies, then automatically shifts your sends toward the winners — while your campaign is still running. Fewer wasted sends. More replies. Less time staring at dashboards.
Finds winners fast
Apex Overlay tests your variants broadly at first, then quickly shifts volume to the ones getting real replies — without you lifting a finger.
Never stops optimizing
Every reply, click, and genuine open updates the system in real time. If a variant starts underperforming on Tuesday, your sends adjust by Wednesday morning.
Knows your segments
Different audiences respond to different copy. Apex Overlay learns which variant works best for VPs vs Directors, Marketing vs Sales — and adjusts sends for each segment.
Setup takes 2 minutes
Connect your Instantly.ai account
Pick which campaigns to optimize
Apex Overlay handles the rest
Want to understand the science behind it? We publish our assumptions, methods, and benchmarks in public.
Read the researchFrequently asked questions
Will this hurt my deliverability?
No. Apex Overlay respects your existing Instantly sending limits, inbox rotation, and daily caps. It only changes which variant each lead receives — it never increases your volume or bypasses any safety settings.
How quickly will I see results?
Most campaigns see the system start shifting sends toward a winner within 3–7 days. The more different your variants are, the faster the shift happens. If your variants are very similar, the improvement will be smaller.
Does this replace Instantly?
No — it works alongside it. You keep running Instantly exactly as you do now. Apex Overlay just sits on top and makes your variant testing smarter. Think of it as an optimization layer, not a replacement.
What happens when the beta ends?
After the free beta period (up to 3 months), you can continue on a paid plan or disconnect with one click. No contracts, no lock-in. Your Instantly campaigns continue running normally either way.
How do you filter bot opens?
Email security scanners open emails within seconds of delivery. Apex Overlay uses timing analysis to separate real human engagement from automated scans. Only genuine opens, clicks, and replies influence which variant wins.
Ready to stop guessing which variant wins?
If you’re sending 10,000 emails a month and 40% go to losing variants, that’s 4,000 leads seeing your worst copy.
Apex Overlay is free during beta. Connect in under 2 minutes. No contract.
Start Your Free Beta