Why App Selection Matters
Apps extend Shopify's functionality in powerful ways. From email marketing to inventory management, the right apps can transform your store's capabilities. However, each app you install comes with trade-offs that many merchants overlook.
We regularly audit stores with 30 or more apps installed. Most of these stores suffer from slow load times, conflicting functionality, and monthly costs that exceed what they would pay for custom development. The solution is not to avoid apps entirely, but to choose them wisely.
The Hidden Costs of Apps
- •Performance impact: Each app adds JavaScript, CSS, and server requests
- •Monthly fees: 15 apps at £15/month = £2,700 per year
- •Data fragmentation: Customer data split across multiple platforms
- •Maintenance burden: More apps means more updates and potential conflicts
The goal is to install only the apps that provide clear value and to choose the best option in each category. Quality over quantity applies strongly to Shopify apps.
Evaluating App Quality
Before installing any app, run through this evaluation checklist. It takes five minutes and can save you hours of troubleshooting later.
Review Analysis
App store ratings can be misleading. Here is how to read them properly:
- •Look at recent reviews: An app can have 5 stars from 2019 but recent 1-star reviews. Sort by newest first.
- •Read the negative reviews: These reveal common problems. If multiple people mention the same issue, it is likely real.
- •Check review volume: An app with 500 reviews at 4.5 stars is more reliable than 10 reviews at 5 stars.
- •Look for detailed reviews: Generic praise ("Great app!") is less useful than specific feedback about features.
Developer Reputation
Check Their Portfolio
Click the developer name to see their other apps. Established developers with multiple successful apps are generally more reliable than newcomers with a single product.
Support Response Time
Look at reviews mentioning support. How quickly does the developer respond? Do they fix issues or make excuses? Good support is essential when things go wrong.
Update Frequency
Check when the app was last updated. Apps that have not been updated in over a year may have compatibility issues or be abandoned.
Pro Tip
Search for the app name plus "problems" or "issues" in Google. You will find forum discussions and Reddit threads that reveal real-world experiences the app store reviews might miss.
Performance Considerations
Every app you install affects your store's speed. Some apps are well optimised and add minimal overhead. Others can add seconds to your load time. Here is how to assess performance impact.
Before You Install
- 1Run a baseline speed test
Use Google PageSpeed Insights on your homepage, a collection page, and a product page. Record the scores.
- 2Check app documentation
Good developers publish information about their app's performance. Look for mentions of lazy loading, async scripts, or performance optimisation.
- 3Search for performance reviews
Look for reviews that mention speed or performance. Slow apps often get called out.
After Installation
- 1Run the same speed tests again
Compare to your baseline. If the score drops significantly, investigate.
- 2Check the network waterfall
In browser developer tools, look at the Network tab. Does the app load large files or make many requests?
- 3Test on mobile
Mobile performance is often worse than desktop. Test on an actual phone if possible.
High-Impact App Categories
These app types tend to have the biggest performance impact:
- !Live chat widgets (load large JavaScript bundles)
- !Review apps (often load on every page, even without reviews)
- !Pop-up and email capture apps
- !Currency converters and translation apps
Security and Permissions
When you install a Shopify app, you grant it access to your store data. Some apps request more permissions than they need. Understanding what you are granting access to is essential for security.
Understanding Permission Scopes
During installation, Shopify shows you what the app can access. Pay attention to these warnings:
Low Risk Permissions
- • Read products and collections
- • Read store content (pages, blogs)
- • Read theme data
Medium Risk Permissions
- • Modify products and collections
- • Read customer data
- • Modify theme files
High Risk Permissions
- • Modify customer data
- • Access payment information
- • Modify orders
- • Access staff information
Red Flags to Watch For
- ×Excessive permissions: A simple countdown timer should not need customer data access
- ×Unknown developers: New apps from unverified developers with broad permissions
- ×No privacy policy: Legitimate apps have clear data handling policies
- ×Requests for admin credentials: Apps should never need your login details
Pro Tip
Regularly audit your installed apps in Settings, then Apps and sales channels. Remove any you no longer use. Each installed app maintains access to your store data until uninstalled.
Pricing Models
Understanding how apps charge helps you budget accurately and avoid unexpected costs. Here are the common pricing models:
Free Apps
Best for testingTruly free apps are rare. Most have limitations that push you to upgrade. Good for basic needs but watch for feature restrictions.
Flat Monthly Fee
PredictableFixed monthly cost regardless of usage or revenue. Good for budgeting. Check what is included in each tier before committing.
Usage-Based Pricing
VariableCharges based on orders processed, emails sent, or API calls. Can be economical at low volume but expensive as you scale. Calculate your expected costs before committing.
Revenue Share
Scales with youTakes a percentage of sales or revenue generated. Common with upsell and marketing apps. Calculate the long-term cost as your revenue grows.
Calculating True Cost
When evaluating pricing, consider the full picture:
- •Annual cost vs monthly (most apps offer discounts for annual billing)
- •Cost at your projected scale in 12 months
- •Hidden costs like transaction fees or premium support
- •Migration cost if you later switch to a different solution
Essential App Categories
While every store is different, these categories represent where apps typically add the most value. You do not need one from each category, but these are worth considering based on your business needs.
Email Marketing
The highest ROI marketing channel for most ecommerce stores. Look for: abandoned cart flows, segmentation, templates, SMS integration.
Popular options: Klaviyo, Omnisend, Mailchimp
Reviews and Social Proof
Product reviews build trust and improve conversion rates. Look for: photo reviews, review requests, SEO integration, import tools.
Popular options: Judge.me, Loox, Yotpo
SEO
Help search engines find and rank your products. Look for: meta tag management, structured data, broken link detection, sitemap control.
Popular options: Smart SEO, SEO Manager, Plug in SEO
Shipping and Fulfilment
Streamline order processing and improve delivery experience. Look for: rate comparison, label printing, tracking pages, returns.
Popular options: ShipStation, Shippo, AfterShip
Upselling and Cross-selling
Increase average order value with product recommendations. Look for: in-cart upsells, frequently bought together, post-purchase offers.
Popular options: ReConvert, Bold Upsell, Zipify OCU
Analytics and Reporting
Go beyond Shopify's built-in analytics. Look for: profit tracking, cohort analysis, customer lifetime value, marketing attribution.
Popular options: Lifetimely, Triple Whale, BeProfit
When to Avoid Apps
Sometimes the best app is no app at all. Here are situations where custom development or alternative solutions make more sense:
When Built-in Features Suffice
Shopify adds new features regularly. Check if what you need is already built into your plan or theme before installing an app. Many stores have apps duplicating native functionality.
When Monthly Costs Exceed Custom Development
A £50/month app costs £600 per year. If a custom solution would cost £500 one-time and provide exactly what you need, the maths favour custom development.
When You Only Need 10% of Features
Installing a comprehensive app when you only need one feature adds unnecessary bloat. A simple custom snippet might do the job better.
When Apps Create Conflicts
Some app combinations cause problems. Multiple apps modifying the same parts of your theme, for example, can break functionality. Sometimes consolidating to fewer, more capable apps is the answer.
Pro Tip
Before installing a new app, ask: "Can I achieve this with theme customisation, Shopify Flow, or a simple code snippet?" Often the answer is yes, and you avoid adding another dependency.
Next Steps
Ready to make better app decisions? Here is your action plan:
- 1Audit your current apps
List all installed apps. For each, note: what it does, monthly cost, and when you last used it.
- 2Identify redundancies
Look for overlapping functionality. Could one app replace two? Are any unused?
- 3Test removing apps
Uninstall one app at a time and monitor for issues. Run speed tests after each removal.
- 4Create an app policy
Before installing future apps, require that they pass your evaluation checklist.
