# Un vs Periop Concepts

The clearest difference is in-app purchases: Periop Concepts at none against Un's 10. Periop Concepts also leads on ads (none vs shown) and iOS requirement (16.6 vs 26.0). On price, review sentiment, update cadence and device support there is nothing between them.

Both are free to download. Un sells 9 in-app purchases, starting at $25.00 per month. Periop Concepts asks for nothing beyond the download.

Un ships an update monthly, Periop Concepts fortnightly. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Un | Periop Concepts |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/un-chase/id6448324755/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 93 MB | 49 MB |
| Requires iOS | 26.0 | **16.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Mia & The Dude Pty Ltd](https://appshunter.io/developer/1684425179) | [Jack Madden](https://appshunter.io/developer/1708103550) |

## What reviewers say

### Un

[App page](https://appshunter.io/ios/app/un-chase/id6448324755)

This app provides a structured program to help stop dogs from chasing. It offers live support, progress tracking, and community features to ensure success. Achieve a dog that follows your lead and is trustworthy around pets, wildlife, and people.

**Highlights:** Step-by-step dog chasing cessation program, Live support and progress tracking, Guidance for various chasing targets, Access to all relevant courses, Live chats and group coaching, Community support

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Un-Chase!® Core Skills | $25.00 | per month |
| Un-Chase!® Subscriber | $29.00 | per month |
| Un-Chase!® Puppy | $49.00 | per month |
| Un-Chase!® Subscriber | $59.00 | per month |
| Un-Chase!® Snakes | $449.00 | per year |
| Protocol for Relaxation | $4.99 | one-time |
| Un-Chase!® Pocket Pets | $129.00 | one-time |
| Un-Chase!® Snakes | $129.00 | one-time |
| Un-Chase!® Puppy | $149.00 | one-time |


### Periop Concepts

[App page](https://appshunter.io/ios/app/periop-concepts/id6467048985)

This application provides comprehensive perioperative nurse education, offering easy access to all your learning videos in one place. Stay updated with the latest news and updates through push notifications and quickly find your favorite content.

**Highlights:** Access all videos in one app, Push notifications for news and updates, Password-free video access, Save favorite posts, Comprehensive perioperative education

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Un free?

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

### Is Periop Concepts free?

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

### Do Un or Periop Concepts have ads?

Un shows ads; Periop Concepts does not.

### Which is updated more often, Un or Periop Concepts?

Un ships an update monthly, and Periop Concepts fortnightly. Most recently, Un was updated on November 7, 2026 and Periop Concepts on November 3, 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.*