# Lytes vs MD on Call

The clearest difference is price: Lytes at $2.99 against MD on Call's $9.99. Lytes also leads on ratings volume (10 vs 1) and iOS requirement (14.1 vs 16.0). MD on Call's advantage is rating (5.0 vs 4.8) and review sentiment (78% vs 67%). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

Lytes costs $2.99 and MD on Call $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

MD on Call holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Lytes has 10 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 67% of Lytes's written reviews are positive against 78% of MD on Call's.

Lytes ships an update every 3 months, MD on Call every 4 months. Both last shipped on October 26, 2026.

## The numbers

| Metric | Lytes | MD on Call |
| --- | --- | --- |
| Price | **$2.99** | $9.99 |
| Rating | [4.8 (10 ratings)](https://appshunter.io/ios/app/lytes/id304747245/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/md-on-call/id333195169/reviews)** |
| Number of ratings | **10** | 1 |
| Positive reviews | 66.7% of reviews | **78.1% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Paid | Paid |
| Size | 1 MB | 17 MB |
| Requires iOS | **14.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Free Radical Software](https://appshunter.io/developer/300521249) | [Messil inc.](https://appshunter.io/developer/333195172) |

## 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


### MD on Call

[App page](https://appshunter.io/ios/app/md-on-call/id333195169)

This app provides quick, practical guidance for physicians, residents, and medical students to manage common on-call issues. It offers concise tips for acute assessment and management, helping users efficiently address patient problems without needing to consult lengthy textbooks.

**Highlights:** Quick assessment and management tips, Covers 26 frequent on-call situations, Management of common electrolyte abnormalities, ECG interpretation with examples, Guidance on writing medical orders, Searchable by acronyms and keywords

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Handy checklist for on-duty
- 👍 Useful in ER
- 👍 Great app design
- 👍 Packed with useful info
- 👍 Pragmatic content

**What reviewers complain about**

- 👎 Could cover more content
- 👎 Needs update for iPhone X
- 👎 Content and references outdated
- 👎 Needs a refresh
- 👎 More conditions could be added

**Reported bugs**

- Incompatible with iPhone X
- Incorrect advice regarding Metaclopramide
- Incorrect TDF to morphine conversion data

**Requested features**

- Cover more content
- Update for iPhone X compatibility
- Revise content and references for up-to-date information
- Add more conditions
- Include common diseases and treatments


## Frequently asked questions

### Is Lytes free?

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

### Is MD on Call free?

MD on Call costs $9.99, with no in-app purchases.

### Which has better reviews, Lytes or MD on Call?

MD on Call is rated higher. Lytes averages 4.8 out of 5 from 10 ratings, while MD on Call averages 5.0 from 1 ratings.

### Do Lytes or MD on Call have ads?

Neither Lytes nor MD on Call shows ads.

### Which is updated more often, Lytes or MD on Call?

Lytes ships an update every 3 months, and MD on Call every 4 months. Most recently, Lytes was updated on October 26, 2026 and MD on Call on October 26, 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.*