# CASP vs LogEM

The clearest difference is update cadence: LogEM at every 11 days against CASP's every 2 months. CASP's advantage is iOS requirement (7.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

CASP ships an update every 2 months, LogEM every 11 days. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | CASP | LogEM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (2 ratings)](https://appshunter.io/ios/app/casp/id961788886/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 11 days** |
| Monetization | Free | — |
| Size | 2 MB | 86 MB |
| Requires iOS | **7.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Luis Ruiz del Fresno](https://appshunter.io/developer/961788885) | [THOMAS PHILLIP PORTER](https://appshunter.io/developer/6787253141) |

## What reviewers say

### CASP

[App page](https://appshunter.io/ios/app/casp/id961788886)

Critically appraise medical literature using evidence-based templates. Includes a glossary, calculators for NNT and post-test probability, and the ability to save and share appraisals.

**Highlights:** Critical appraisal templates, Glossary of terms, NNT calculator, Post-Test Probability calculator, Save and share appraisals, PDF export

**Features:** macOS Compatibility

**In-app purchases:** none


### LogEM

[App page](https://appshunter.io/ios/app/logem-em-logbook-and-pocus/id6787253139)

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

**In-app purchases:** none


## Frequently asked questions

### Is CASP free?

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

### Is LogEM free?

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

### Do CASP or LogEM have ads?

Neither CASP nor LogEM shows ads.

### Which is updated more often, CASP or LogEM?

CASP ships an update every 2 months, and LogEM every 11 days. Most recently, CASP was updated on November 1, 2026 and LogEM on October 31, 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.*