Real campaigns. Real numbers.
Every number on this page comes from live Instantly campaigns. No simulations. No cherry-picked runs. Some campaigns are still active — we show those too.
This month’s targets
Bad variants burning client leads is the fastest way to miss monthly meeting targets. Apex Overlay catches underperforming variants before they consume your list — not after.
Client domain health
A variant generating unsubscribes damages every inbox running from that domain. Throttled automatically before it reaches your unibox. Before it reaches your client.
Client retention
Persona-level data showing which angle worked for which audience segment. The report that gives clients a story, not just a number — and keeps them on retainer.
Agency differentiation
Most agencies deliver the same Clay → Instantly stack. Apex Overlay gives you campaign intelligence no competitor can show — which messaging angles work for which segments, automatically discovered from live campaigns.
It kills variants overnight
When auto-optimize finds a winner, it kills all other variants instantly. Your sending pattern goes from 5 variants to 1 overnight, a field day for gmail fingerprinting.
It optimises on overall reply rate
Auto-optimize takes into account overall reply rate, that includes negative and auto replies — destroying your overall metric.
It occurs once, at a certain threshold
You burn leads on equal split up to that point, and then it hones in fully on 1 variant. We gradually shift traffic between variants and use reinforcement learning to keep your sending pattern natural and mathematically sound.
Comparison
| Instantly auto-optimize | Apex Overlay | |
|---|---|---|
| Adjusts | Once | From first positive reply |
| Optimises on | Bot and negative replies | Positive replies only |
| When winner found | Kills all other variants overnight | Throttles gradually, keeps floor |
| Domain pattern | Sudden homogeneity — spam signal | Stays natural throughout |
| Bot filtering | None | Intent & engagement calculations |
| Segment data | Lost when variants killed | Compounds across every campaign |
| Manual intervention | Yes — to set threshold and monitor | No — starts learning from day 1 |
Connects via your Instantly API key. Reads your existing campaigns, variants, and leads.
Changes the chance of each variant being sent as positive replies, engagement, unsubs and spam reports arrive — in real time, from day one.
Your campaigns, inboxes, sequences, copy, sending schedule — all completely unchanged.
That’s it. Your campaign is now live and learning.
14 day audit guarantee
If Apex Overlay doesn’t identify a winning variant and shift allocation within 14 days on your first campaign, we’ll personally audit your campaign data at no cost — and tell you exactly why.
One click revert
If you want to stop at any point, one click returns every campaign to exactly how it was in Instantly. Equal split resumes immediately. Nothing is permanently changed. Nothing to explain to a client.
Every campaign currently running on equal split is burning leads on variants that aren’t working. Every month your agency runs without this, a competitor could be building campaign intelligence you don’t have.
Apex Overlay case studies show 5–10% reply rate uplift on cold email campaigns running on Instantly.ai. The system changes the chance of each variant being sent in real time based on positive replies, engagement, unsubs, and spam reports. Results are measured against equal-split baselines across real client campaigns.
Stop sending your best leads your worst email.
Connect your Instantly account and see sends start shifting to your best email within your first 50 sends.