# CT Passkey vs DarkroomFlow

CT Passkey and DarkroomFlow are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support 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.

## The numbers

| Metric | CT Passkey | DarkroomFlow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 days | — |
| Size | 40 MB | 23 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [IT Department, General Department of Taxation of Viet Nam](https://appshunter.io/developer/1589750684) | [Ravi Palwe](https://appshunter.io/developer/1863867404) |

## What reviewers say

### CT Passkey

[App page](https://appshunter.io/ios/app/ct-passkey/id6755713591)

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

**In-app purchases:** none


### DarkroomFlow

[App page](https://appshunter.io/ios/app/darkroomflow/id6756948144)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CT Passkey free?

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

### Is DarkroomFlow free?

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

### Do CT Passkey or DarkroomFlow have ads?

Neither CT Passkey nor DarkroomFlow shows ads.

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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.*