First customer results — see the full case study
See it work on a live campaign — 34 seconds
The Problem
Right now, every variant gets equal leads. Your worst email burns through your list at the same rate as your best.
Equal split waste
Every lead your worst variant receives is a lead you can’t reach again with better copy. By the time you manually identify the loser and switch it, hundreds have already seen your weakest email. Those leads are gone permanently — and so is the pipeline they represented for your client.
Manual checking doesn’t scale
If a variant starts generating unsubscribes you won’t know until the damage is already in your domain reputation. Checking variant performance across 5, 8, 10 client campaigns is hours of work per week — and you’re still always one bad variant away from a deliverability problem you have to explain to a client.
Instantly’s auto-optimize makes it worse
When it fires it kills all but one variant overnight. Your domain goes from three different email patterns to one suddenly — a spam filter signal. And it picks the winner using signal that includes bot clicks and unsubscribes lumped together, not positive replies only. Then you lose all segment-level data about why it won.
The Solution
One tool. Every campaign. More replies.
Apex Overlay plugs into Instantly.ai and changes the chance of each variant being sent — up when it’s earning positive replies and engaging leads, down when it’s generating unsubs, spam reports or negative replies. In real time, from day one — no migration, no code, no new workflows.
Apex Overlay
Apex Overlay increases the chance a variant gets sent when it’s earning positive replies and engaging leads — and decreases it when it’s generating unsubs, spam reports or negative replies. In real time, from day one. Your copy, sequences, and campaigns stay exactly the same.
- Changes the chance of each variant being sent in real time, based on replies, engagement, unsubs and spam reports
- Filters bot activity by click latency before any decision is made — only real positive replies move the send percentages. No bot noise. No corrupted signal.
- Works across all your client campaigns simultaneously — no manual checking, no campaign cloning, no dashboard babysitting
Built-in persona analytics show exactly which variant works for which audience segment — so your next campaign starts with data, not guesses. The intelligence that makes your agency offer harder to compete with.
How It Works
Three steps. Zero babysitting.
Traditional A/B testing makes you wait days or weeks for a winner, then manually swap variants. Apex Overlay skips that entirely. It changes the chance of each variant being sent — up when it’s earning positive replies and engaging leads, down when it’s generating unsubs, spam reports or negative replies — while your campaign is still running. Fewer wasted leads. More positive replies. No dashboard babysitting.
Finds winners fast
Starts equal. As positive replies and engaged leads arrive, the chance each variant gets sent updates immediately. Your best email starts receiving more leads within hours — not days.
Never stops learning
Every positive reply and engaged lead increases the chance your best variant gets sent to the next lead. Every unsubscribe, spam report or negative reply decreases it. Continuously, in real time, from day one.
Knows your segments
Different audiences respond to different copy. Apex Overlay tracks which variant works for which seniority level and job function — and changes the chance of each variant being sent per segment, in real time. The data compounds across every campaign you run.
Setup takes 2 minutes
Connect your Instantly.ai account
Pick which campaigns to run it on
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 — it helps. Apex Overlay respects your existing Instantly sending limits, inbox rotation, and daily caps. It only changes the chance of each variant being sent. It never increases your volume or bypasses any safety settings. And by sending fewer leads to variants generating unsubs and spam reports before they cause damage, your domain reputation stays healthier than it would under equal split.
How quickly will I see results?
Most campaigns see the chances start shifting toward a winner within hours of the first positive replies arriving. Full convergence — where one variant is getting sent to the large majority of leads — typically happens within 3–7 days. The more different your variants are in their reply rates, the faster the shift happens.
Does this replace Instantly?
No — it works alongside it. You keep running Instantly exactly as you do now. Your campaigns, inboxes, sequences, and copy stay completely unchanged. Apex Overlay changes the chance of each variant being sent — up when it’s earning positive replies and engaging leads, down when it’s generating unsubs, spam reports or negative replies. In real time, from day one.
What happens when the beta ends?
Users who connect during the Freemium month keep the plan free forever. After this month, new users start at £49/mo. You can disconnect anytime with one click.
Apex Overlay connects to Instantly.ai and changes the chance of each variant being sent in real time — up when it earns positive replies and engages leads, down when it generates unsubs, spam reports and negative replies. The Freemium plan is available this month with unlimited workspaces, unlimited campaigns, and automatic send adjustments. No credit card required. After this month, plans start at £49 per month.
Ready to stop sending your best client leads your worst email?
If you’re sending 10,000 emails a month across 3 variants, 6,600 of those leads are going to emails that aren’t your best performer. Every month. That’s pipeline your clients aren’t getting. Apex Overlay is free during beta. Connects in 2 minutes. No contract.
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