# PEM Diary vs CBT Toolbox

The clearest difference is price: PEM Diary at Free against CBT Toolbox's $0.99. PEM Diary also leads on iOS requirement (15.1 vs 18.4). CBT Toolbox's advantage is chart position (#196 vs unranked). On ads, in-app purchases and device support there is nothing between them.

PEM Diary is free to download; CBT Toolbox costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | PEM Diary | CBT Toolbox |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/pem-diary-mecfs-crash-log/id6743624638/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Free | — |
| Best chart rank | — | **#196** |
| Size | 92 MB | 4 MB |
| Requires iOS | **15.1** | 18.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Add Jam](https://appshunter.io/developer/1075812699) | [Jack Scott Brothers](https://appshunter.io/developer/1787604355) |

## What reviewers say

### PEM Diary

[App page](https://appshunter.io/ios/app/pem-diary-mecfs-crash-log/id6743624638)

This app helps individuals manage post-exertional malaise (PEM) by logging crashes, tracking severity, symptoms, and duration. It provides insights into patterns and creates a shareable record for personal reference or healthcare discussions.

**Highlights:** Log PEM crashes with dates, Track severity and symptoms, Add contextual notes, View trends on timeline/dashboard, 100% private local storage, Export data as CSV

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

**In-app purchases:** none


### CBT Toolbox

[App page](https://appshunter.io/ios/app/cbt-toolbox/id6745707549)

**Currently charting:** #196 Top Paid · Health & Fitness (US App Store)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PEM Diary free?

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

### Is CBT Toolbox free?

CBT Toolbox costs $0.99, with no in-app purchases.

### Do PEM Diary or CBT Toolbox have ads?

Neither PEM Diary nor CBT Toolbox shows ads.

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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.*