# Dental Stack for Doctors vs Clear Castle

Dental Stack for Doctors and Clear Castle are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Dental Stack for Doctors ships an update every 3 weeks, Clear Castle monthly. The most recent releases landed on September 9, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Dental Stack for Doctors | Clear Castle |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Size | 20 MB | 72 MB |
| Requires iOS | 16.1 | 16.1 |
| Devices | iPhone | iPhone |
| Age rating | 12+ | 12+ |
| Developer | [DentalStack](https://appshunter.io/developer/1697611393) | [CLEAR CASTLE ALIGNERS LLP](https://appshunter.io/developer/1846129112) |

## What reviewers say

### Dental Stack for Doctors

[App page](https://appshunter.io/ios/app/dental-stack-for-doctors/id6478521410)

**Features:** macOS Compatibility

**In-app purchases:** none


### Clear Castle

[App page](https://appshunter.io/ios/app/clear-castle/id6753986309)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Dental Stack for Doctors free?

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

### Is Clear Castle free?

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

### Do Dental Stack for Doctors or Clear Castle have ads?

Neither Dental Stack for Doctors nor Clear Castle shows ads.

### Which is updated more often, Dental Stack for Doctors or Clear Castle?

Dental Stack for Doctors ships an update every 3 weeks, and Clear Castle monthly. Most recently, Dental Stack for Doctors was updated on September 9, 2026 and Clear Castle on September 18, 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.*