Pet food has something almost no other product has: it runs out on a predictable date. A 10 kg dog finishes a 12 kg bag in about two months; an indoor cat, a 3 kg bag in a month and a half. If you know when it runs out, you know when your customer will buy again… or when you’ll lose them if you’re not there.
Subscriptions turn that predictability into recurring revenue. In this guide we review how to set one up, what you need technically and which mistakes to avoid.
Why subscriptions fit the pet sector so well
- Repetitive, low-involvement purchase: nobody wants to think about ordering pet food every month; they want it to just arrive.
- High brand loyalty: switching food affects the pet’s digestion, so owners don’t switch on a whim.
- High, stable order value: large bags, multipacks of cans, treats and supplements that can be added to the order.
- Defense against marketplaces: subscribed customers don’t compare prices every time.
With more than 15 million registered pets in Spain and a petfood market exceeding €2.1 billion (we cover it in the petfood market figures for 2025), the opportunity is clear.
Step 1: calculate the right frequency for each customer
The most common mistake is offering fixed frequencies (“every 30 days”) without considering the pet. If the bag lasts 70 days and you ship every 30, the customer stockpiles bags and cancels. If it lasts 20 and you ship every 30, they run out of food and buy elsewhere.
The frequency should be calculated from the animal’s weight, activity level and product format. You can see an example of this calculation in our calculator: how long does a bag of pet food last?. The idea is to ask for this data at sign-up (or infer it from order history) and suggest the ideal frequency, always letting the customer adjust it.
Step 2: choose the right subscription model
- Pure subscription: automatic order with recurring billing. Maximum retention, but it needs a payment gateway that supports recurring payments and good issue handling.
- Replenishment reminder: an email or SMS a few days before the bag runs out, with a link to reorder in one click. Less friction to get started and very effective.
- Hybrid model: reminders for everyone and a subscription with a perk (discount, free shipping or gift) for those who want to automate.
For most brands starting out, the hybrid model works best: it drives repeat purchases from day one and gradually converts the most loyal customers into subscribers.
Step 3: get your online store ready
Technology matters. These are the minimum requirements:
- Recurring payments with card tokenization and automatic retries if a charge fails.
- Customer account area to pause, skip ahead, or change frequency or product without calling anyone.
- ERP and logistics integration to forecast stock and prepare recurring shipments.
- CRM and automation for reminders, onboarding and win-back of cancellations. At TRILOGI we handle it with marketing automation connected to the store.
Platforms like LogiCommerce, Shopify or PrestaShop support subscriptions natively or through specialized modules; the choice depends on your catalog, your integrations and whether you also sell to the trade channel.
Step 4: give customers reasons to stay
- A clear perk: a small recurring discount or free shipping is usually enough.
- Total flexibility: if canceling is hard, customers won’t subscribe. If it’s easy, they stay.
- Personalization: the pet’s name, recommendations based on age, alerts when it changes life stage (puppy to adult, adult to senior).
- Useful content: portions, feeding tips and new products. An assistant with AI Agents can answer questions 24/7 and recommend products from the catalog.
Common mistakes when launching a subscription
- The same frequency for every customer.
- Not notifying before each charge or shipment.
- Hiding the option to cancel or pause.
- Not measuring: churn rate, recurring revenue, customer lifetime value and cancellation reasons.
- Launching without stock or logistics ready for recurring order peaks.
Conclusion
Selling pet food by subscription is one of the most profitable levers in the sector: it turns a predictable purchase into recurring revenue and protects your brand from price wars. The key is to calculate the frequency well, offer flexibility and connect store, CRM and logistics.
Want to implement it in your store? At TRILOGI we help brands and stores in the pet sector set up subscriptions and automate repeat purchases. Let’s talk.
