- INSO migrated LifeVac Europe (lifevac.eu) to Shopify, per the public portfolio credit — the store sells an anti-choking airway-clearance device, per its own site title.
- The brief was speed and conversion: an extremely fast landing page, a custom theme built to the client’s design and functionality requests, and upsell + post-purchase cross-sell flows.
- The credit’s listed skills include Klaviyo; it reports no outcome metrics, so this page claims none.
- Checked on August 31, 2026: lifevac.eu still returns 200 on Shopify, and its production theme’s schema is named "inso.codes" — verifiable by anyone in the page source.
01 Introduction
Agency case studies usually ask you to trust a screenshot. This one you can check from your own browser: open lifevac.eu, view the page source, and the production Shopify theme identifies its schema as "inso.codes". The public portfolio credit behind that theme documents the engagement — migrate LifeVac Europe's existing store to Shopify, make the landing page extremely fast, and build custom upsell flows — and three years after the credit was published, the theme it describes is still the one serving production traffic.
The credit reports no outcome metrics — so this page reports none. What it documents is the brief, the build, and one unusually durable piece of evidence.
02 The client
LifeVac Europe runs its store at lifevac.eu — the credit identifies the client through that linked project URL, and the live site titles itself "LifeVac - Choking Rescue Device": a European storefront for an anti-choking airway-clearance device. For a product in that category, the store is not a brochure — it is the place a worried parent or a care home lands, often from an ad, often in a hurry. That context is visible in what the brief prioritized: speed first.
03 The brief
The credit states three goals:
- Migrate to Shopify — move the existing store onto the platform.
- An extremely fast landing page — speed named explicitly as a goal, not an afterthought.
- Custom upsell flows — sell the follow-on product without getting in the way of the first purchase.
04 What INSO built
INSO's contribution, per the credit:
- A custom fast theme — built to the client's design and functionality requests rather than adapted from a marketplace template.
- Upsell + post-purchase cross-sell — the credit calls the flows "flawless" (its own wording); post-purchase placement means the offer appears after the order is secured, not as friction before it.
- Performance optimization — the delivery side of the "extremely fast" goal.
The credit's listed skills include Klaviyo — the email side of a storefront whose upsell logic extends past the checkout.
05 Still in production, three years on
Case-study claims age; page source is checkable. On August 31, 2026 — more than three years after the credit's May 2023 publication — lifevac.eu returned HTTP 200, verifiably on Shopify (cdn.shopify.com preconnects, /cdn/shop/ asset paths, Shopify session cookies). And the storefront's own Shopify.theme object read:
{"name":"Life-Vac/prod","schema_name":"inso.codes","schema_version":"1.7.1"}
A theme named prod whose schema carries the builder's name, still serving a live store years later, is its own kind of evidence — this was built as the store's foundation, not a campaign asset. (The check verifies the theme's identity and the platform; it does not verify how the theme has been edited since delivery, and the store's operators may have changed anything above that foundation.)
06 The public record
Everything on this page traces to the portfolio credit "Custom Shopify Theme and custom Upsell Flow" (published May 31, 2023) on the Upwork profile of INSO's engineering lead, Oleksandr (Alex) Mashkovtsev, at upwork.com/freelancers/alexmv (captured August 31, 2026), plus the live check described above.
| Detail | Value | Status |
|---|---|---|
| Portfolio credit | Custom Shopify Theme and custom Upsell Flow (published May 31, 2023) | Public; client identified via the credit's linked project URL |
| Client | LifeVac Europe (lifevac.eu) — anti-choking airway-clearance device store, per the live site's own title | URL from the credit; description from the live site |
| Goal | Migrate to Shopify; extremely fast landing page; custom upsell flows | Stated in the credit |
| The build | Custom fast theme to the client's design/functionality requests; upsell + post-purchase cross-sell ("flawless" is the credit's wording); performance optimization | Stated in the credit |
| Listed skills | Include Klaviyo | Stated in the credit |
| Live status | lifevac.eu returns 200 on Shopify; production theme "Life-Vac/prod", schema "inso.codes" v1.7.1 | Checked August 31, 2026 |
| Reported outcomes | None — the credit states no conversion, speed-score, or revenue figures | Nothing claimed on this page |
The portfolio credit states no engagement dates beyond its own publication date, no hours, no fees, and no team size — so this page claims none. "Flawless" describing the upsell flows is the credit's own self-published wording, not a client-verified assessment. The live check verifies the store's platform and its production theme's identity as of August 31, 2026; it does not verify performance scores or how the theme has been modified since delivery. Upwork's public data also does not state which contract this project belongs to, so this page draws no connection between this credit and any contract record.
07 Conclusion
The LifeVac Europe engagement is a migration story with an unusual epilogue: the deliverable signs its own work. A custom theme built for speed and upsell, moved onto Shopify to the client's requests — and still identifying itself as inso.codes in the page source of a live European storefront, three years after the credit documenting it was published.
For an engagement documented through independently verified third-party sources, see the Goodfair case study; for other credits with the same sourcing discipline as this page, see BDGE, Antinol, and Freaker USA.
Need a store that's fast where it counts and sells past the first checkout? Tell us about your migration.
07 Frequently asked questions
- What did INSO build for LifeVac Europe?
- Per the public portfolio credit: a migration of the existing store to Shopify, with an extremely fast landing page as an explicit goal; a custom fast theme built to the client’s design and functionality requests; upsell and post-purchase cross-sell flows; and performance optimization. The credit’s listed skills include Klaviyo.
- Who is LifeVac Europe?
- The credit identifies the client via its linked project URL, lifevac.eu. The live site — checked August 31, 2026 — titles itself "LifeVac - Choking Rescue Device": a European storefront for an anti-choking airway-clearance device. That description comes from the live site, not the credit.
- How is "the theme is still in production" verifiable?
- Shopify storefronts expose a Shopify.theme object in their page source. On lifevac.eu, checked August 31, 2026, that object reads name "Life-Vac/prod" with schema_name "inso.codes" (schema version 1.7.1) — the production theme’s own metadata carries INSO’s name. Anyone can view the page source and see the same line. The check verifies the theme’s identity and that the store runs on Shopify; it does not verify how the theme has been edited since delivery.
- Did the project report any results?
- No. The credit describes the goal and the work — migration, speed, upsell flows — but reports no conversion, speed-score, or revenue figures, so this page claims none. The one durable fact is independently checkable: the store was still on Shopify, running a theme schema named "inso.codes", when checked on August 31, 2026.
- Where does this information come from?
- Two public sources: the portfolio credit "Custom Shopify Theme and custom Upsell Flow" (published May 31, 2023) on the Upwork profile of INSO’s engineering lead, Oleksandr (Alex) Mashkovtsev (upwork.com/freelancers/alexmv), which links lifevac.eu as the project URL, and a live check of lifevac.eu on August 31, 2026. This page states nothing beyond them.