Which? vs Impact Store
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Which?
This app provides expert reviews and price comparisons for thousands of products and services to help UK consumers shop smarter. Access digital magazine issues with full membership for the latest consumer advice and news, all available offline.
- Expert product and service reviews
- Price comparison and availability checks
- Product specification and test result comparison
- Customer ratings and expert verdicts
- Digital issues of Which? Magazine
- Offline access to reviews and magazines
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The Which? app helps UK consumers shop smart and sustainably with 1,000s of expert reviews. Plus, with full membership, you can access digital issues of our flagship magazine to stay on top of the latest consumer advice and news. Shopping is made easy for you with the latest product and service reviews. Compare prices, product specs, test results and customer ratings, and see our expert verdicts on whether products are Best Buys or Don’t Buys. Once you’ve downloaded the Which? app, you can access our reviews and magazine issues – anytime, anywhere, including offline. • Get the best deal – compare prices and check availability. • Filter by price, features, test results and recommended products. • Shortlist and compare product features and test results. • With full membership, you can read digital issues of Which? Magazine. Why do our users love the new Which? App? • It’s a time saver - no need to trawl the internet looking for the best product reviews. • You can check product reviews and prices instantly when out shopping. • Trusted independent reviews of a huge range of products with pros and cons. • Easy navigation enables you to compare products and prices side by side. • You can easily sort the Best Buys from the Don’t Buys. Feedback and support: Share your reviews of the Which? app on the App Store and via app@which.co.uk Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Your Which? membership through Apple In-App Purchase: https://www.which.co.uk/help/your-which-membership-through-apple-in-app-purchase-aoVxP9t7ifLK
Impact Store
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We've made bulk food shopping easy. When you shop at Impact Store, use this self-checkout app to Scan, Weigh and Pay for your shopping. The app is really simple to use. - Keep library of your pre-weighed containers - Scan the QR code next to any product - Pick the container you want to fill - Fill your container and set it on any of our scales - Scan the QR code on the scales - The product is added to your shopping cart - Checkout when you’re done shopping - Pay right in the app with credit card or Apple Pay The Impact Store shop is located at 2-4 Station road, Finchley central, London, N3 2RY.
Screenshots
Verdict
The clearest difference is update cadence: Which? at weekly against Impact Store's every 4 months. Impact Store's advantage is iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Which? ships an update weekly, Impact Store every 4 months. The most recent releases landed on November 1, 2026 and October 14, 2026 respectively.
| Parameter | Which? | Impact Store |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (42 ratings) — better | — |
| Positive reviews | 35.1% of reviews | — |
| Number of ratings | 42 — better | — |
| Update frequency | Weekly — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 85 MB | 46 MB |
| Age rating | 4+ | 4+ |
| Developer | Which? Limited | Analog Republic Limited |
Bugs and requests
Which?
Reported bugs
16 issues- App hangs on login screen
- Blank white pages when loading articles
- Login loop - constantly asks to re-authenticate
- Search returns no results or incomplete results
- Back button unresponsive or overly laggy
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- Multiple taps on back button cause navigation errors
- App crashes when changing portrait/landscape orientation
- Offline error message despite active internet connection
- Filters reset when returning to product list
- Pages fail to load or load very slowly
- Broken links in articles and categories
- App freezes during login pop-ups
- Saved items disappear after app updates
- Session not maintained when redirected to website
- Autofill not recognized on username field
- App doesn't remember previous page when returning
Requested features
13 requests- Dark mode for app interface
- Remember login credentials/autofill support
- Persistent session management
- Advanced filtering and sorting options
- Ability to compare more than two products
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- Magazine article indexing and search
- Landscape mode for magazine reading
- Sync saved items between app and website
- Notifications for new reviews in categories
- Better iPad screen utilization
- Improved search with suggestions
- Accessibility improvements for screen readers
- In-app subscription option via Apple Pay
Impact Store
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Which?
No in-app purchases
Impact Store
No in-app purchases
Questions
Is Which? free?
Is Impact Store free?
Do Which? or Impact Store have ads?
Which is updated more often, Which? or Impact Store?
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