# Flow vs CertiCask

The clearest difference is update cadence: Flow at every 5 days against CertiCask's every 5 weeks. On price, ads, 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.

Flow ships an update every 5 days, CertiCask every 5 weeks. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Flow | CertiCask |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 5 weeks |
| Monetization | Free | — |
| Size | 101 MB | 29 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Lior Levy](https://appshunter.io/developer/1632950791) | [Prooftag](https://appshunter.io/developer/424006750) |

## What reviewers say

### Flow

[App page](https://appshunter.io/ios/app/flow-maitrise-le-temps/id6751422591)

Regain control of your screen time and protect your focus with a physical device that blocks digital distractions. Choose which apps to lock and set timed access periods to prevent mindless scrolling.

**Highlights:** Physical distraction blocker, App blocking, Timed app access, Focus protection, Digital well-being

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

**In-app purchases:** none


### CertiCask

[App page](https://appshunter.io/ios/app/certicask/id6751585705)

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

**In-app purchases:** none


## Frequently asked questions

### Is Flow free?

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

### Is CertiCask free?

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

### Do Flow or CertiCask have ads?

Neither Flow nor CertiCask shows ads.

### Which is updated more often, Flow or CertiCask?

Flow ships an update every 5 days, and CertiCask every 5 weeks. Most recently, Flow was updated on October 24, 2026 and CertiCask on October 10, 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.*