# Zippin vs PopKnock

The clearest difference is rating: PopKnock at 5.0 against Zippin's 3.3. PopKnock also leads on update cadence (every 2 weeks vs every 2 months). Zippin's advantage is ratings volume (15 vs 4) and iOS requirement (11.0 vs 15). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PopKnock holds the better App Store score, 5.0 against 3.3. Both are backed by a comparable volume of ratings — 15 and 4 respectively.

Zippin ships an update every 2 months, PopKnock every 2 weeks. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Zippin | PopKnock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (15 ratings)](https://appshunter.io/ios/app/zippin/id1415450195/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/popknock/id6670556630/reviews)** |
| Number of ratings | **15** | 4 |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 34 MB | 28 MB |
| Requires iOS | **11.0** | 15 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Vcognition Technologies Inc](https://appshunter.io/developer/1415450194) | [PopKnock LLC](https://appshunter.io/developer/1735088138) |

## What reviewers say

### Zippin

[App page](https://appshunter.io/ios/app/zippin/id1415450195)

This app allows you to enter and shop at checkout-less stores. Simply download the app, add your payment method, and then use it to enter the store. Once you're finished shopping, you can leave, and your account will be charged automatically with a receipt sent shortly after.

**Highlights:** Enter checkout-less stores, Add payment methods, Shop as usual, Automatic charging, Digital receipts

**Features:** Apple Wallet

**In-app purchases:** none


### PopKnock

[App page](https://appshunter.io/ios/app/popknock/id6670556630)

Discover local businesses and services with this app. Easily find in-store pickup options, book appointments for salons and spas, and make restaurant reservations. Enjoy exclusive discounts and savings on all your purchases with no service fees.

**Highlights:** Local business discovery, In-store pickup, Appointment booking, Restaurant reservations, Exclusive discounts, No service fees

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Zippin free?

Zippin is free to download, with no in-app purchases.

### Is PopKnock free?

PopKnock is free to download, with no in-app purchases.

### Which has better reviews, Zippin or PopKnock?

PopKnock is rated higher. Zippin averages 3.3 out of 5 from 15 ratings, while PopKnock averages 5.0 from 4 ratings.

### Do Zippin or PopKnock have ads?

Neither Zippin nor PopKnock shows ads.

### Which is updated more often, Zippin or PopKnock?

Zippin ships an update every 2 months, and PopKnock every 2 weeks. Most recently, Zippin was updated on October 24, 2026 and PopKnock on October 20, 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.*