# Which? vs Sainsbury's

The clearest difference is in-app purchases: Sainsbury's at none against Which?'s 2. Sainsbury's also leads on rating (4.8 vs 4.5) and ratings volume (765 vs 41). Which?'s advantage is ads (none vs shown). On price, review sentiment, update cadence and monetization model there is nothing between them.

Both are free to download. Which? sells 2 in-app purchases, starting at $4.49 per month. Sainsbury's asks for nothing beyond the download.

Sainsbury's holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Sainsbury's has 765 ratings behind it against 41, so its average is the more settled of the two. Written reviews complicate that: 35% of Which?'s written reviews are positive against 30% of Sainsbury's's, so the app with the better star average is not the one people write more warmly about.

Which? ships an update weekly, Sainsbury's every 2 weeks. The most recent releases landed on October 18, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Which? | Sainsbury's |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (41 ratings)](https://appshunter.io/ios/app/which/id1082710781/reviews) | **[4.8 (765 ratings)](https://appshunter.io/ios/app/sainsburys/id1086056964/reviews)** |
| Number of ratings | 41 | **765** |
| Positive reviews | **35.1% of reviews** | 29.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 2 weeks |
| Monetization | Freemium | Free with in-app purchases |
| Size | 85 MB | 110 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Which? Limited](https://appshunter.io/developer/490633171) | [Sainsbury's](https://appshunter.io/developer/976550044) |

## What reviewers say

### Which?

[App page](https://appshunter.io/ios/app/which/id1082710781)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Which? Reviews | $4.49 | per month |
| Reviews Plus (discontinued) | $5.49 | per month |

**What reviewers like**

- 👍 Trusted, independent consumer reviews and testing
- 💰 Saves money on purchasing decisions
- 🔍 Comprehensive product comparison information
- 📱 Convenient access to reviews on-the-go
- 📚 Extensive coverage of consumer products

**What reviewers complain about**

- 🐢 App extremely slow and laggy
- 🔐 Constant forced re-login issues
- 🐛 Frequent blank page errors
- ❌ Poor search functionality
- 🧭 Inconsistent and confusing navigation

**Reported bugs**

- 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

**Requested features**

- 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


### Sainsbury's

[App page](https://appshunter.io/ios/app/sainsburys/id1086056964)

Shop for over 30,000 grocery products from your phone. Browse, search, create orders, and collect rewards. Choose home delivery or in-store collection across the UK.

**Highlights:** Browse and search 30,000+ products, Create and edit grocery orders, Link Nectar card for rewards, Access offers and deals, UK-wide home delivery, Click & Collect from stores

**Features:** macOS Compatibility, Apple Wallet, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Convenient shopping
- 👍 Easy to use app
- 👍 Excellent delivery service
- 👍 Friendly and helpful delivery drivers
- 👍 Great for online shopping

**What reviewers complain about**

- 🐛 App crashes and glitches
- 🐛 Unavailable items and substitution issues
- 🐛 Difficulty logging in and accessing account
- 🐛 Checkout and payment problems
- 🐛 Missing or unreliable features

**Reported bugs**

- App crashes during checkout
- Unable to add payment methods
- Nectar card integration issues
- Delivery address changes unexpectedly
- Items disappearing from basket

**Requested features**

- Add notes for item substitutions
- Improve search and browsing experience
- Integrate Nectar card and points management
- Provide delivery tracking and status updates
- Allow saving and reordering of previous orders


## Frequently asked questions

### Is Which? free?

Which? is free to download, with in-app purchases available.

### Is Sainsbury's free?

Sainsbury's is free to download, with no in-app purchases.

### Which has better reviews, Which? or Sainsbury's?

Sainsbury's is rated higher. Which? averages 4.5 out of 5 from 41 ratings, while Sainsbury's averages 4.8 from 765 ratings.

### Do Which? or Sainsbury's have ads?

Sainsbury's shows ads; Which? does not.

### Which is updated more often, Which? or Sainsbury's?

Which? ships an update weekly, and Sainsbury's every 2 weeks. Most recently, Which? was updated on October 18, 2026 and Sainsbury's on October 19, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*