# PoCUS Pocket Trainer vs Addendum.

The clearest difference is in-app purchases: Addendum. at none against PoCUS Pocket Trainer's 3. PoCUS Pocket Trainer's advantage is update cadence (every 2 days vs weekly) and iOS requirement (15.6 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. PoCUS Pocket Trainer sells 3 in-app purchases, starting at $4.99 per 7 days. Addendum. asks for nothing beyond the download.

PoCUS Pocket Trainer ships an update every 2 days, Addendum. weekly. The most recent releases landed on October 11, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | PoCUS Pocket Trainer | Addendum. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/addendum/id6787558572/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Weekly |
| Monetization | — | Free |
| Size | 1.2 GB | 2 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Eltjo Haselhoff](https://appshunter.io/developer/1126280156) | [Steven Ermer](https://appshunter.io/developer/6777496728) |

## What reviewers say

### PoCUS Pocket Trainer

[App page](https://appshunter.io/ios/app/pocus-pocket-trainer/id6748582437)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One-week subscription | $4.99 | per 7 days |
| One-month subscription | $9.99 | per month |
| One-year subscription | $19.99 | per year |


### Addendum.

[App page](https://appshunter.io/ios/app/addendum/id6787558572)

This private journal helps medical students capture clinical moments for residency applications. It allows for quick note-taking, tagging by theme, and drafting ERAS experiences. The app prioritizes privacy with on-device encryption and offline functionality.

**Highlights:** Capture clinical moments quickly, Tag entries by interview archetypes, Draft ERAS experiences with character counts, Prepare for interviews with STAR stories, Track letters of recommendation, Private, on-device encryption, Offline functionality

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PoCUS Pocket Trainer free?

PoCUS Pocket Trainer is free to download, with in-app purchases available.

### Is Addendum. free?

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

### Do PoCUS Pocket Trainer or Addendum. have ads?

Neither PoCUS Pocket Trainer nor Addendum. shows ads.

### Which is updated more often, PoCUS Pocket Trainer or Addendum.?

PoCUS Pocket Trainer ships an update every 2 days, and Addendum. weekly. Most recently, PoCUS Pocket Trainer was updated on October 11, 2026 and Addendum. on September 30, 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.*