# C2 Flanker Task vs DeepHush

The clearest difference is price: DeepHush at Free against C2 Flanker Task's $3.99. DeepHush also leads on update cadence (every 10 days vs every 12 months). C2 Flanker Task's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.

DeepHush is free to download; C2 Flanker Task costs $3.99 up front. DeepHush sells 2 in-app purchases, starting at $3.99 per month. C2 Flanker Task asks for nothing beyond the download.

C2 Flanker Task ships an update every 12 months, DeepHush every 10 days. The most recent releases landed on August 31, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | C2 Flanker Task | DeepHush |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 10 days** |
| Monetization | Paid | — |
| Size | 1 MB | 25 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yasuyoshi Ota](https://appshunter.io/developer/1500357652) | [Cheveo GmbH](https://appshunter.io/developer/1865169146) |

## What reviewers say

### C2 Flanker Task

[App page](https://appshunter.io/ios/app/c2-flanker-task/id1629584722)

This app measures response times for a flanker task, recording data in milliseconds. Export your results to a CSV file for analysis in spreadsheet applications. Customize the task by altering coloring, background brightness, and arrow shapes.

**Highlights:** Measures response time in milliseconds, CSV data export for spreadsheets, Customizable task parameters, Analyzes flanker task effects, Supports iPhone and iPad

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

**In-app purchases:** none


### DeepHush

[App page](https://appshunter.io/ios/app/deephush-adhd-focus-timer/id6757191995)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DeepHush Plus Monthly | $3.99 | per month |
| DeepHush Plus Annual | $29.99 | per year |


## Frequently asked questions

### Is C2 Flanker Task free?

C2 Flanker Task costs $3.99, with no in-app purchases.

### Is DeepHush free?

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

### Do C2 Flanker Task or DeepHush have ads?

Neither C2 Flanker Task nor DeepHush shows ads.

### Which is updated more often, C2 Flanker Task or DeepHush?

C2 Flanker Task ships an update every 12 months, and DeepHush every 10 days. Most recently, C2 Flanker Task was updated on August 31, 2026 and DeepHush 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.*