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Digital Space

Ecommerce companion apps

A companion app for an existing online shop, sharing the same product catalogue and stock as your website.

Reading time
3 min
Worked examples
1
On this page

For a business that already sells online through the online shop on a Digital Space Gold website plan, a companion app is a natural extension rather than a separate project: same products, same stock, same checkout logic, just a second way for regular customers to shop that feels native on their phone: faster to browse, with push notifications a website can't send, and often a shorter, friendlier checkout for someone who already has an account and saved details.

Because the app and the website share the same product and stock data rather than a separate copy, a price change, a new product, or an item going out of stock updates everywhere at once. There's no risk of the app showing a product as available after it's sold out on the website, or running a different promotion by accident because two systems have drifted apart; there's only ever one source of truth.

The clearest value for most ecommerce businesses is in repeat purchase behaviour: saved payment details and addresses make reordering near-instant, order status and delivery updates can be pushed directly rather than relying on a customer checking their email, and a wishlist or saved-items feature keeps your shop one tap away between visits rather than relying on them remembering your website URL. For consumable or repeat-purchase products specifically, a simple reorder reminder timed to when a customer typically runs out can be genuinely useful rather than intrusive.

Push notifications are opt-in and scoped to what's genuinely useful to the customer: order status updates and offers they've agreed to receive, rather than defaulting to sending everything to everyone. We'd rather a notification be something a customer is glad to get than something that gets your app uninstalled.

A companion app makes most sense once a shop has a genuine base of repeat customers who'd benefit from a faster, native way to reorder: for a shop that's mostly first-time visitors from search or social, a fast, well-built mobile website usually covers the need without the added cost and app store overhead of a dedicated app, and we'll say so plainly if that's the better fit for your business.

Because the app and website are built together, adding a companion app to a Digital Space Gold website shop is typically a smaller project than building a mobile shop from nothing; the product data, checkout logic, and design already exist and can be extended, rather than rebuilt a second time for a separate app platform. That also means ongoing changes, like adding a new product category or a seasonal promotion, only need to be made once and appear correctly on both the website and the app.

Worked examples

  1. An independent skincare and beauty products shop

    Hypothetical example: illustrative figures

    A shop sells skincare products online with a meaningful base of customers who reorder the same products every 4-8 weeks, currently all through the website only.

    Before
    Repeat customers reorder by revisiting the website and searching for the same products each time.
    After
    A companion app lets repeat customers reorder their usual products in a couple of taps, with a restock reminder notification timed to when they typically run out.

    iOS & Android app plan (Basic, Bronze, Silver or Gold), after a discovery call and prototype.

    Assumptions: Hypothetical example for illustration only. Not a real client; actual value depends on repeat-purchase rate and how often customers currently reorder.

Questions

Does the app stay in sync with the website's product catalogue?
Yes, the app reads from the same product and stock data as your website rather than a separate copy, so a price change or a sold-out item updates everywhere at once.
Can it send order updates or offers as push notifications?
Yes, where that's genuinely useful to the customer: order status updates and opt-in offers are both straightforward to add, scoped to what you actually want to send rather than defaulting to everything.

Ready to talk it through?

Tell us a bit about your business and we will be in touch within one business day.