App Stack Audit & Management
Every app scored on cost, script weight, overlap and actual usage. We remove what is redundant and own the relationship with what stays.
Paris
Shopify Apps & Ongoing Growth Support in Paris, France
A named Shopify team maintaining the French-specific plumbing that breaks quietly and costs you orders before anyone notices.
Delivered remotely for brands across Paris and France.
Scale · Paris
Why Paris brands come to us for this
- Ownership of the French-specific plumbing: pickup-point carrier selection, instalment payment, age verification, invoicing and accounting sync
- Monitoring on the integrations that fail silently, especially the relais choice reaching fulfilment and the shipping label
- App stack audited against cost, script weight, overlap and real usage, with post-migration module-for-app bloat cleared out first
- Sale-window readiness checks before each fixed discount period, so the mechanics are tested in advance rather than at 8am on opening day
- Fixed sprint cadence and a written changelog built for an eight-hour offset, with live calls kept to the shared afternoon window
A French Shopify store carries a stack of integrations that a domestic-only English store does not, and every one of them is a moving part. Pickup-point carrier selection at checkout. Instalment payment. Age verification where the catalogue needs it. Invoicing and accounting sync in a format your accountant will accept. Structured labelling and packaging data. Each of those is a third-party dependency with its own release schedule, and when one of them silently stops passing the chosen relais to your fulfilment system, the symptom is not an error message. It is a slow rise in delivery complaints that takes three weeks to notice.
The second recurring problem is inherited bloat, and it is worse for brands that came off a self-hosted platform. A store migrated from PrestaShop or WooCommerce usually arrives having replaced twenty modules with twenty apps, when a good share of what those modules did is native on Shopify. We audit the stack against cost, script weight, overlap and actual usage, remove what duplicates something the platform already does, and own the relationships with what stays. Removing apps is normally the cheapest speed win available and it funds a meaningful chunk of the arrangement in cancelled subscriptions.
Then there is the backlog, which on a small team never gets worked because someone is always trading. A named developer and strategist, a fixed sprint cadence, a ranked list you can reorder, and a storefront that ends the year faster and cleaner than it began instead of drifting toward another rebuild in eighteen months.
Local context
Working an eight-hour gap without losing a day per exchange
Paris runs eight hours ahead of Mountain Time, which leaves roughly two usable hours together, around four to six in your afternoon and first thing in our morning. Pretending that is an advantage would be nonsense, so we build the process around it instead. Live calls go in that window and nowhere else. Everything else is written, in enough detail that a question raised at the end of your day is normally answered before you start the next one, which turns the gap into overnight progress rather than a lost day. Anything revenue-blocking has a defined response time and a named escalation path that does not depend on someone being awake in the right city. Sprint planning and demos sit in the shared window, and the changelog is written for someone reading it cold at nine in the morning. In practice the eight hours costs you real-time back-and-forth on ambiguous problems and gives you a build cycle that runs while you sleep, and we would rather describe it that way than sell it as a follow-the-sun benefit.
Scope
What Apps & Support includes
The same standard of work we run for every client — applied to a Paris brand’s realities.
Full service detailCustom App & Function Development
Private apps, Shopify Functions and admin extensions built when a subscription stack is more expensive or slower than owning the code.
Theme Maintenance & Speed
Quarterly Core Web Vitals review, dead-code removal, dependency updates and regression testing against Shopify's platform releases.
Priority Bug Support
Named Slack channel with defined response times: two business hours for revenue-blocking issues, one business day for everything else.
Monthly Optimisation Workstream
A ranked backlog of improvements, features and experiments, with an agreed sprint capacity so a fixed number of items ship every month.
Quarterly Roadmap Review
A session on what shipped, what it moved, and what the next quarter should target. Priorities get reset against your commercial plan, not a fixed contract scope.
Scoped and quoted for your Paris store
We do not work off a rate card. Every Paris engagement starts with a fixed statement of work — named deliverables, named dates, one number — written after we have looked at your store, not before. If a smaller first step would serve you better, we will say so.
Get this scopedHow it runs
From kickoff to results
Store Health Check
App stack, theme code, speed, integrations and open bug list documented in the first two weeks. You get the findings whether you continue or not.
Stabilise
Redundant apps removed, urgent bugs cleared, monitoring and staging environments set up. Usually pays for a chunk of the first quarter in cancelled subscriptions.
Backlog & Cadence
A shared, ranked backlog and a fixed sprint rhythm. You always know what is in flight, what is next, and what capacity is left.
Ship Monthly
Two-week sprints with a demo and changelog at the end of each. Work is visible in your own board, not hidden in an agency system.
Review & Reprioritise
Monthly reporting on what shipped and what it moved, then a quarterly reset of priorities against your commercial goals.
Proof
Apps & Support results
Anonymised under NDA. Figures pulled from the client’s own analytics.
Supplements (Subscription DTC)
~$4.2M/yr, 60% subscription revenue, 22 SKUs, US · Shopify Plus (Recharge, Klaviyo)
Monthly subscription churn hit 9.4% and the cancel flow was a single button on a hosted page nobody had touched in three years. Support processed 340 subscription changes a month by hand because customers could not do it themselves. The named constraint: no forced logins. The brand refused to gate account access behind a password reset, which ruled out every off-the-shelf portal.
9.4% → 6.1%monthly subscription churnheld for five consecutive months, not a single-month dip
+34%12-month customer LTV$187 to $251 on the subscriber cohort
19% → 38%of revenue from email + SMScategory benchmark for a healthy program is 25-40%
-71%subscription support tickets340/mo to 98/mo after the self-serve portal launched
Outdoor & Sports Gear
~$7M/yr, 480 SKUs, US + EU via Shopify Markets · Shopify Plus (Shopify Markets, 3 regions)
Paid social carried 81% of revenue and CAC had climbed 44% in eighteen months. Organic sat at 2,100 sessions a month against category competitors doing ten times that, and the EU storefront duplicated the US catalogue with no hreflang at all. The named constraint: three national retailers own the head terms with link profiles this brand could not match in a year, so the plan had to win on query depth instead of authority.
+186%organic sessions2,100 to 6,000/mo, branded queries excluded
+21%conversion rate on organic traffic1.9% to 2.3% after the collection and PDP work landed
$61 → $45blended CACorganic share of revenue went from 8% to 24%
+38%revenue year over yearwith paid media spend down 12%
In their words
Clients on this work
$1,900/mo of app spend cancelled
“First month they cancelled eleven apps we were still paying for, just under $1,900 a month, which covered more than half the retainer before they shipped a line of code. The backlog lives in our own board and we rank it together — it is not a bucket of hours that quietly evaporates. Two years in and I have never had to chase a bug fix twice. We are twenty minutes from their office and they still turn up in person for the quarterly, which I appreciated more than I expected to.”
OwnerSporting goods brand, ~$4M/yr · Albuquerque, NM
Verified client, 2025FAQ
Apps & Support in Paris — your questions
No, and we will not imply otherwise. ConversionEX has one office, in Albuquerque, New Mexico, and every French client is served remotely from it. We work in English, we commission native French writing where the copy is customer-facing, and we come over to start a project and once or twice a year after that. If having a team you can meet in the eleventh arrondissement on Thursday is a requirement, hire a Paris agency, and we would rather tell you that now than three months in.
Carrier pickup-point selection is the recurring one, because the failure is silent. The map still renders, the customer still chooses a relais, and the value stops reaching the order or the label. Instalment payment display is the second, usually breaking after a theme update takes the widget off the product page while checkout keeps working, so nothing errors and the average order value just quietly drops. We monitor both rather than waiting for a customer to tell you.
By front-loading it. Before each fixed sale window we run a readiness pass: the sale collection and price logic tested on a duplicate theme, the discount mechanics checked against real cart scenarios, app and integration versions frozen, and a rollback ready. During the window we hold capacity rather than scheduling new feature work, and the escalation path is agreed in advance. The point is that opening day should be uneventful, because a nationally fixed window is not a period you can repeat.
With the audit, and usually by deleting. Brands arriving from a self-hosted platform tend to recreate their old module list one-for-one, and a good share of those modules were patching gaps Shopify does not have. We score every app on subscription cost, script weight, overlap with another app and whether anyone has used it in ninety days, then remove the redundant ones first. That pass is normally the fastest speed improvement available and pays for a chunk of the first quarter.
A named developer and strategist, an agreed sprint capacity, priority bug support, app stack management and monthly reporting. Capacity is set in hours per month and rolls over one month if unused. Anything outside scope gets quoted separately before work starts.
Three months, then rolling with thirty days' notice. The three months exists because the first month is mostly stabilisation and you would not see the benefit of the arrangement inside a shorter window. We do not do twelve-month lock-ins.
When the subscription cost exceeds roughly $500 a month, when the app injects scripts that hurt Core Web Vitals, or when you need logic no vendor offers. Below that threshold, buying is almost always the right answer and we will say so.
Next step
Apps & Support for your Paris brand.
Thirty minutes with the strategist who would actually run your account. We screen-share your store, read your data live, and tell you the three highest-value things we can see from the outside.
Shopify or Shopify Plus stores doing $150k/mo or moreFounder, CEO or eCommerce lead on the callNo deck and no pitch — we open your store instead
Prefer to write it out? [email protected] gets a real reply the same business day, Mon-Fri, 9am-6pm MT.