# HotDoc vs KnowDose

The clearest difference is in-app purchases: HotDoc at none against KnowDose's 3. KnowDose's advantage is update cadence (every 6 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. KnowDose sells 3 in-app purchases, starting at $2.99 per month. HotDoc asks for nothing beyond the download.

HotDoc ships an update every 2 weeks, KnowDose every 6 days. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | HotDoc | KnowDose |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (25 ratings)](https://appshunter.io/ios/app/hotdoc/id757696633/reviews)** | — |
| Number of ratings | **25** | — |
| Positive reviews | 85.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 6 days** |
| Monetization | Free | — |
| Size | 19 MB | 64 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [HotDoc](https://appshunter.io/developer/757696636) | [zexi liu](https://appshunter.io/developer/1864105022) |

## What reviewers say

### HotDoc

[App page](https://appshunter.io/ios/app/hotdoc/id757696633)

Easily book and manage appointments with a wide range of health professionals 24/7. Access on-demand care, view doctor availability, and receive appointment reminders. Take control of your and your family's health.

**Highlights:** Instant online booking, On Demand Care (Quick Consults, Telehealth), View doctor availability, Appointment reminders, Reschedule appointments, Search and filter providers, Book for family members

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to book appointments
- 👍 Convenient and user-friendly
- 🔒 Secure and reliable
- 📆 Appointment reminders and calendar integration
- 🔍 Ability to search for and choose doctors

**What reviewers complain about**

- 🐛 Occasional glitches and bugs
- 🔍 Limited search and filtering options
- 💳 Payment issues and unexpected fees
- 🕰️ Inaccurate availability information
- 🔄 Difficulty cancelling or rescheduling appointments

**Reported bugs**

- Appointments disappearing from the app
- Incorrect or missing appointment details
- Difficulties logging in and managing account
- Compatibility issues with older devices

**Requested features**

- Add option to favorite multiple doctors/clinics
- Improve notification system for appointment changes
- Allow more detailed notes/comments for appointments
- Integrate with more healthcare providers
- Provide better visibility into appointment queue/wait times


### KnowDose

[App page](https://appshunter.io/ios/app/knowdose/id6756990966)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $2.99 | per month |
| Annually subscription | $24.99 | per year |
| Knowdoes monthly Subsciption | $4.99 | one-time |


## Frequently asked questions

### Is HotDoc free?

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

### Is KnowDose free?

KnowDose is free to download, with in-app purchases available.

### Do HotDoc or KnowDose have ads?

Neither HotDoc nor KnowDose shows ads.

### Which is updated more often, HotDoc or KnowDose?

HotDoc ships an update every 2 weeks, and KnowDose every 6 days. Most recently, HotDoc was updated on October 24, 2026 and KnowDose 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.*