Push notifications are the most cited reason UK Shopify brands build mobile apps. They're also widely misused. This guide covers what actually works, the numbers behind it, and how to build a notification strategy that drives revenue without destroying your opt-in list.
Why push notifications matter commercially
You have three ways to reach a customer who bought from you before: email, SMS, and push.
Email: you own the list, delivery rates have declined (average email open rates in ecommerce sit around 20-25%), and inbox competition is brutal.
SMS: open rates are high (90%+ within minutes) but unit costs are real - typically 4-8p per message in the UK - and audiences have less patience for frequency.
Push: free per message, no deliverability issues, open rates averaging 20-40% for well-segmented notifications. The constraint is you need your customer to have your app installed and notifications enabled.
The business case: for a brand with 10,000 opted-in app users, sending a push notification to announce a new collection costs nothing per send. A 3% conversion rate from that list at an average order value of £80 is £24,000 from a free channel.
At scale, this is the argument. Beekman 1802 reported 37x ROI on their push notification programme - directionally, the mechanism is real.
The opt-in is the asset
The most valuable thing in your mobile app is not the app. It's the list of customers who have opted in to receive push notifications.
On iOS, users must actively grant permission for push notifications. The opt-in prompt appears once; if the user declines, you cannot ask again without them going into their settings. This makes the opt-in moment critical.
How to maximise push opt-in rate:
Present the prompt at the right moment, not immediately on app open. Users who've never bought from you and have just opened the app for the first time have no reason to grant notification access. Present the opt-in prompt:
- After a purchase (they've committed, they want order updates)
- After they've browsed more than three products (they've shown interest)
- When you have a clear value proposition to offer ("Allow notifications to get early access to new drops")
Use a soft ask before the system prompt. Show your own in-app screen explaining what notifications you'll send before triggering the iOS/Android system permission dialogue. A user who's read "We'll notify you when new collections drop and when your order ships" is more likely to approve than one who sees the system dialogue cold.
What to actually send
The mistake most brands make: they send too much, too often, with too little segmentation.
Treat push like SMS - high value, moderate frequency, always relevant to the recipient. A customer who gets pushed three times a day for generic promotions turns off notifications within a week.
The notification types that consistently perform:
Cart abandonment. The highest commercial impact notification. A customer who added items to cart but didn't purchase is your most ready buyer. A push within 1-2 hours of abandonment converts significantly. "You left something behind" performs better than "Your cart is waiting." Adding the product name and image performs better still.
New collection launch. For fashion, beauty, and lifestyle brands, new arrivals notifications have strong open rates from previous buyers. Segment to buyers of the relevant category, not your whole list.
Back-in-stock alerts. Opt-in to back-in-stock at the product level is one of the highest-converting notification types. Open rates on back-in-stock notifications can exceed 60%.
Low-inventory urgency. "Only 3 left" notifications to customers who have viewed a product drive FOMO conversion. Use with discipline.
Sale launch (not the whole sale, just the launch). The first 30 minutes of a sale consistently see the highest conversion rates. Notify your opted-in list at the moment a sale goes live. Send to your VIP or high-LTV segment first.
Order and shipping updates. Builds notification habit and trust. These have near-100% open rates and make every subsequent commercial notification more effective.
Personalised reactivation. For customers who haven't purchased in 60-90 days, a notification referencing their purchase history performs significantly better than a generic "We miss you."
What not to send
- Daily promotions. Training customers to wait for discounts destroys your opt-in list over time.
- Notifications unrelated to purchase behaviour. If a customer only buys beauty, pushing fashion is irrelevant.
- Multiple notifications in the same day. One notification per day is the practical maximum for most brands outside genuine urgency.
- Poorly timed sends. UK sweet spots: 9-11am, 12-1pm, 7-9pm. Avoid 7am and 11pm.
Segmentation to build immediately
VIP buyers: customers with 3+ purchases or spend over £300 lifetime. Notify first, most frequently.
Category buyers: customers who have bought from specific product categories. Fashion, beauty, homeware - segment so notifications are relevant.
High-intent browsers: customers who have viewed products 3+ times without buying. Close to conversion.
Lapsed buyers: customers who haven't purchased in 60+ days. Re-engagement requires a different message and probably a stronger offer.
New app users: customers who've just downloaded and haven't made an in-app purchase. The first 30 days after install are critical for establishing habit.
UK-specific push notification considerations
Timing around UK events: Bank Holidays, major sporting events (the Euros, Wimbledon), and UK-specific retail moments (Boxing Day, January sales, payday weeks) affect receptivity.
GDPR and notification consent: Under UK GDPR, you need genuine opt-in for marketing communications. The Apple and Android permission systems handle this at the technical level, but your internal data handling needs to be clean.
Klarna and Clearpay mentions: UK customers respond well to payment flexibility mentions. "Shop now, pay in 3" type copy consistently lifts conversion for brands with these payment methods enabled.
Push notification calendar template
| Week | Notification type | Segment |
|---|---|---|
| Ongoing | Cart abandonment (1h, 24h after) | Cart abandoners |
| New stock arrives | New collection launch | Category buyers |
| Tuesday/Thursday | Curated new arrivals | VIP buyers |
| Monthly | Back-in-stock for wishlisted items | Subscribers |
| Before sale | VIP early access (12h before) | VIP buyers |
| Sale day | Sale launch | Full opted-in list |
| Day 3 of sale | "Only X hours left" | Non-converting openers |
| End of month | Payday-week promo | Full list |
| Post-purchase | Order shipped | Recent buyers |
| Day 45 | Reactivation | 45-day inactive |
FAQ
Do Shopify stores need a mobile app for push notifications?
Yes. App push notifications require a native iOS or Android app. Browser push notifications exist as a web-based alternative but have significantly lower opt-in rates and less reliable delivery, particularly on iOS. A mobile app is the only way to do push notifications properly.
How much do push notifications cost for a Shopify app?
Push notification infrastructure is included in most mobile app platforms (Talmee, Tapcart, Shopney, etc.) as part of the monthly subscription. Unlike SMS, there's no per-message cost for push.
What is a good push notification open rate for ecommerce?
A well-segmented push notification should achieve 20-40% open rates. Generic blast notifications typically see 5-15%. Cart abandonment notifications often achieve 40-60% when timed well.
What is the best push notification strategy for Shopify?
Start with cart abandonment (highest commercial impact), add new collection notifications for category buyers, back-in-stock for wishlist subscribers, and shipping updates for all buyers. Keep frequency under 2 pushes per customer per week for non-urgent content. Full details on building this into your app strategy at talmee.com/why-an-app.
This guide was written by Talmee, a Manchester-based Shopify mobile app agency. Our apps include full push notification infrastructure as part of the managed service. From £1,999/month, no revenue share. talmee.com
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