# Lytes vs QuickEM

The clearest difference is in-app purchases: Lytes at none against QuickEM's 1. Lytes also leads on price ($2.99 vs $9.99) and rating (4.8 vs 4.6). QuickEM's advantage is review sentiment (91% vs 67%) and chart position (#44 vs unranked). On ratings volume, update cadence, ads and monetization model there is nothing between them.

Lytes costs $2.99 and QuickEM $9.99 up front. QuickEM sells 1 one-off in-app purchase. Lytes asks for nothing beyond the download.

Lytes holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 10 and 10 respectively. Written reviews complicate that: 67% of Lytes's written reviews are positive against 91% of QuickEM's, so the app with the better star average is not the one people write more warmly about.

Lytes ships an update every 3 months, QuickEM every 2 months. The most recent releases landed on October 15, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Lytes | QuickEM |
| --- | --- | --- |
| Price | **$2.99** | $9.99 |
| Rating | **[4.8 (10 ratings)](https://appshunter.io/ios/app/lytes/id304747245/reviews)** | [4.6 (10 ratings)](https://appshunter.io/ios/app/quickem/id930734530/reviews) |
| Number of ratings | 10 | 10 |
| Positive reviews | 66.7% of reviews | **90.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Best chart rank | — | **#44** |
| Size | 1 MB | 78 MB |
| Requires iOS | **14.1** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Free Radical Software](https://appshunter.io/developer/300521249) | [Dirkes Medical, PLLC](https://appshunter.io/developer/1668683062) |

## What reviewers say

### Lytes

[App page](https://appshunter.io/ios/app/lytes/id304747245)

Provides quick, at-your-fingertips information on the causes, symptoms, diagnosis, and treatment of electrolyte disorders. Features an intuitive interface for rapid access to practical medical knowledge, including references to PubMed.

**Highlights:** Causes, signs, diagnosis, and treatment of electrolyte disorders, Intuitive single-screen interface, 50 pages of practical medical information, Resume reading where you left off, PubMed reference links

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

**In-app purchases:** none


### QuickEM

[App page](https://appshunter.io/ios/app/quickem/id930734530)

**Currently charting:** #44 Top Paid · Medical (US App Store)

This emergency medicine reference app provides clinicians with instant access to critical information, including differentials, treatments, and validated medical calculators. It's designed for rapid lookup of ED-specific care, organized by chief complaints and clinical categories, and works completely offline.

**Highlights:** 80+ chief complaint topics, 90+ medical calculators, Offline access, No login or ads, Adult and pediatric coverage, Evidence-based content, Customizable favorites

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Features | $2.99 | one-time |


## Frequently asked questions

### Is Lytes free?

Lytes costs $2.99, with no in-app purchases.

### Is QuickEM free?

QuickEM costs $9.99, and also offers in-app purchases.

### Which has better reviews, Lytes or QuickEM?

Lytes is rated higher. Lytes averages 4.8 out of 5 from 10 ratings, while QuickEM averages 4.6 from 10 ratings.

### Do Lytes or QuickEM have ads?

Neither Lytes nor QuickEM shows ads.

### Which is updated more often, Lytes or QuickEM?

Lytes ships an update every 3 months, and QuickEM every 2 months. Most recently, Lytes was updated on October 15, 2026 and QuickEM on October 8, 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.*