# Instock vs DUCKTEM

The clearest difference is in-app purchases: DUCKTEM at none against Instock's 1. DUCKTEM also leads on ads (none vs shown) and update cadence (every 3 days vs every 4 weeks). Instock's advantage is ratings volume (15 vs 3) and iOS requirement (13.0 vs 15.5). On price and device support there is nothing between them.

Both are free to download. Instock sells 1 in-app purchase, starting at $9.99 per month. DUCKTEM asks for nothing beyond the download.

DUCKTEM holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Instock has 15 ratings behind it against 3, so its average is the more settled of the two.

Instock ships an update every 4 weeks, DUCKTEM every 3 days. The most recent releases landed on October 8, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Instock | DUCKTEM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (15 ratings)](https://appshunter.io/ios/app/instock-shopping/id6445827103/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/ducktem/id6757898329/reviews)** |
| Number of ratings | **15** | 3 |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 weeks | **Every 3 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 38 MB | 35 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [JNJ Software LTD](https://appshunter.io/developer/1674038912) | [Ducktem LLC](https://appshunter.io/developer/1869512481) |

## What reviewers say

### Instock

[App page](https://appshunter.io/ios/app/instock-shopping/id6445827103)

Never miss a product drop or restock again. This assistant notifies you in real-time when items become available across hundreds of retailers. Customize your feed with desired products or focus on discounts.

**Highlights:** Real-time restock notifications, Customizable product feed, Discounts-only feed, Live release feed, Direct add-to-cart links, Autofill for faster checkout

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Subscription | $9.99 | per month |


### DUCKTEM

[App page](https://appshunter.io/ios/app/ducktem/id6757898329)

A campus-exclusive marketplace app for university students to discover and exchange items, housing, and resources. Connect with peers in a secure, localized environment for offline transactions and community building.

**Highlights:** Campus-only community access, Item listings and exchanges, Student-to-student messaging, Housing and sublease posts, Offline transaction facilitation, In-app safety guidelines

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

**In-app purchases:** none


## Frequently asked questions

### Is Instock free?

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

### Is DUCKTEM free?

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

### Which has better reviews, Instock or DUCKTEM?

DUCKTEM is rated higher. Instock averages 4.7 out of 5 from 15 ratings, while DUCKTEM averages 5.0 from 3 ratings.

### Do Instock or DUCKTEM have ads?

Instock shows ads; DUCKTEM does not.

### Which is updated more often, Instock or DUCKTEM?

Instock ships an update every 4 weeks, and DUCKTEM every 3 days. Most recently, Instock was updated on October 8, 2026 and DUCKTEM on October 14, 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.*