The Engine Diagnostic · free
Free, before you decide anything: we get real access, dig into your Klaviyo, Shopify and subscription data the way we would for a paying client, and hand back a prioritised plan for what to fix, kill and build. Yours to keep either way.
Trusted by 70+ brands
"Our programme has improved significantly since working with them. Retention has improved, our subscribers are more engaged, and we're seeing real commercial impact from the channel."
Adam Oxley · Co-Owner, Discount Supplements
You've seen "free audit" before
A spreadsheet of your numbers next to "industry benchmarks" and a note saying you're below them. Nothing about which levers to pull, or where to start.
The same forty rows every brand gets, scored against nothing that resembles your business, attached to a calendar link.
Two slides about your account, seventeen about the agency. The "findings" all happen to be things they sell.
Channel metrics with no money attached. Nothing about churn, margin, or how many of your customers ever come back.
If an audit doesn't change what you do next Monday, it wasn't an audit. Here's what a real one contains.
The deliverables
The data
We go through Klaviyo, Shopify and your subscription platform the way we would for a paying client, alongside the context from your intro call. Real access, real depth. No dashboard skim.
Lifecycle review
What's working, what's underperforming and what's missing entirely, judged against the brands like yours we run every day, with the revenue at stake attached to each gap.
The levers
Where your repeat revenue actually comes from, and the levers that grow it: more first-time buyers coming back for a second order, subscription sign-ups, churn saves, win-backs. Ranked by what each one is worth to you.
The plan
A prioritised roadmap: what to fix, kill and build, in what order, and what each step is for. Detailed enough that your own team could execute it without us.
Sneak peek
A page from the diagnostic, rebuilt with sample data. Yours uses your real numbers, and real numbers are less polite.
Engine score
58/100
Where it leaks
The plan, ranked by impact
For subscription brands
Subscription revenue is decided by nine numbers across three systems: how subscribers join, how they leave, and what each one is worth while they stay. The diagnostic measures all nine and shows you which is costing you most.
System 01 · Intake
System 02 · Leaks
System 03 · Output
No subscription programme? The same rigour goes into repeat purchase: getting more first-time buyers back for a second order, and growing the repeat revenue behind it.
What the plan turns into
Every number below is verified client data from a full case study on this site.

+227%subscription orders in year oneRead the full story → 
22% → 56%returning-customer share of revenue in 8 monthsRead the full story → 
+58%returning customer sales in 12 monthsRead the full story → Name withheld 9% → 35%subscription save rate for a UK electrolytes brandRead the full story → ★★★★★
"Will they go quiet after month one?"
"Every week, without fail, there's an update in our inbox. No chasing, no wondering what's happening, it just arrives."
★★★★★
"Is this just email?"
"Everboost go beyond email to consider retention improvement across the board. I couldn't recommend them more."
★★★★★
"Do the results actually come?"
"We saw a 20% increase in revenue in just three months. The best part has been the consistent communication and detailed feedback we receive."
How it works
Thirty minutes, consultative. We hear the story behind your numbers, you hear exactly how the audit works, and we decide together whether it's worth running. If the honest answer is that you don't need us yet, you'll hear that too.
Manager access to Klaviyo and your subscription platform, plus Shopify. Deep access is what separates a real audit from a dashboard skim: it lets us dig into flows, segments and customer data properly. About fifteen minutes of your time to set up.
Within about a week: the findings, the lifecycle review and the prioritised plan, walked through together so every recommendation arrives with a number and a reason attached.
The plan is yours to keep either way. If you're open to working together, we'll put a proposal in front of you on a follow-up call, and we'll be upfront about that from the start.
We build a handful of diagnostics a month alongside client work. If the calendar is full, you get the next slot, not a rushed audit.
Fair questions
It's free, and it's the same diagnostic every Everboost engagement starts with, so we build it properly regardless of what happens next. We're upfront about the commercial side on the intro call: if you're open to it, we'll put together a proposal and present it on a follow-up call. If you're not ready for that conversation, the plan is still yours to keep.
Manager access to Klaviyo, Shopify and your subscription platform (Loop, Skio, Recharge or similar), plus a short intro call for context. Deep access is what makes the audit genuinely useful: it lets us dig into the data properly instead of reading the same dashboards you already look at. About fifteen minutes of your time to set up.
About a week from access to walkthrough. We build a handful of these a month alongside client work, so slots are subject to availability. If the calendar's full, you get the next slot rather than a rushed audit.
The plan is yours and there's no obligation. We'll be honest about why the audit is free: brands who see exactly where their revenue is leaking usually want the team that found the leaks to fix them. If the timing isn't right for you, we'll check back in further down the line, and that's as pushy as it gets.
A senior strategist on the Everboost delivery team. Not a junior with a checklist, not a template with your logo on it. Every audit is built from your live data, from scratch.
No. If you run a subscription programme the audit goes deeper into the nine numbers above. If you don't, the same rigour goes into repeat purchase: getting more first-time buyers back for a second order, and growing the repeat revenue behind it.
Where to start
Book the intro call. If the audit is worth running, you'll have a prioritised plan inside a couple of weeks: what to fix, kill and build, in order.
Book an intro call →Trusted by 70+ brands