# Asthma Tracker Chance vs BookMD for Doctors

The clearest difference is ads: BookMD for Doctors at none against Asthma Tracker Chance's shown. Asthma Tracker Chance's advantage is update cadence (every 9 days vs monthly) and iOS requirement (11.0 vs 13.0). On price, 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.

Asthma Tracker Chance ships an update every 9 days, BookMD for Doctors monthly. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Asthma Tracker Chance | BookMD for Doctors |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 9 days** | Monthly |
| Size | 37 MB | 72 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Putu Angga Risky Raharja](https://appshunter.io/developer/1164107753) | [BookMD, INC](https://appshunter.io/developer/1636893082) |

## What reviewers say

### Asthma Tracker Chance

[App page](https://appshunter.io/ios/app/asthma-tracker-chance/id1509283563)

**Features:** macOS Compatibility

**In-app purchases:** none


### BookMD for Doctors

[App page](https://appshunter.io/ios/app/bookmd-for-doctors/id6447709436)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Asthma Tracker Chance free?

Asthma Tracker Chance is free to download, with no in-app purchases.

### Is BookMD for Doctors free?

BookMD for Doctors is free to download, with no in-app purchases.

### Do Asthma Tracker Chance or BookMD for Doctors have ads?

Asthma Tracker Chance shows ads; BookMD for Doctors does not.

### Which is updated more often, Asthma Tracker Chance or BookMD for Doctors?

Asthma Tracker Chance ships an update every 9 days, and BookMD for Doctors monthly. Most recently, Asthma Tracker Chance was updated on November 3, 2026 and BookMD for Doctors on October 25, 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.*