# MD on Call vs ODB Formulary

The clearest difference is price: ODB Formulary at Free against MD on Call's $9.99. ODB Formulary also leads on update cadence (every 3 weeks vs every 4 months). MD on Call's advantage is chart position (#103 vs unranked). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

ODB Formulary is free to download; MD on Call costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

MD on Call ships an update every 4 months, ODB Formulary every 3 weeks. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | MD on Call | ODB Formulary |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/md-on-call/id333195169/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 78.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Paid | — |
| Best chart rank | **#103** | — |
| Size | 17 MB | 40 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Messil inc.](https://appshunter.io/developer/333195172) | [RxCoverage Canada Inc.](https://appshunter.io/developer/1434960122) |

## What reviewers say

### MD on Call

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

**Currently charting:** #103 Top Paid · Medical (US App Store)

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- 👎 Content and references outdated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


### ODB Formulary

[App page](https://appshunter.io/ios/app/odb-formulary/id6450048706)

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

**In-app purchases:** none


## Frequently asked questions

### Is MD on Call free?

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

### Is ODB Formulary free?

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

### Do MD on Call or ODB Formulary have ads?

Neither MD on Call nor ODB Formulary shows ads.

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

MD on Call ships an update every 4 months, and ODB Formulary every 3 weeks. Most recently, MD on Call was updated on November 6, 2026 and ODB Formulary on November 3, 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.*