# FlowIn vs Mast

The clearest difference is update cadence: FlowIn at every 4 days against Mast's every 2 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. FlowIn sells 4 in-app purchases, starting at $2.99 per month and Mast sells 2 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

FlowIn ships an update every 4 days, Mast every 2 weeks. The most recent releases landed on August 16, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | FlowIn | Mast |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (18 ratings)](https://appshunter.io/ios/app/flowin-screen-time-control/id6747114186/reviews)** | — |
| Number of ratings | **18** | — |
| Positive reviews | 88.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 2 weeks |
| Monetization | Freemium | — |
| Size | 88 MB | 81 MB |
| Requires iOS | 17 | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [TRILLIWON, Co.](https://appshunter.io/developer/1050731374) | [Thomas Bryden](https://appshunter.io/developer/6789959069) |

## What reviewers say

### FlowIn

[App page](https://appshunter.io/ios/app/flowin-screen-time-control/id6747114186)

This app helps you reduce screen time by blocking distracting applications and websites. It offers customizable timers, schedules, and detailed usage insights to improve focus and build healthier digital habits.

**Highlights:** Block any app or website, Deep focus options with Pomodoro, Customizable timers and schedules, Detailed screen time insights, Digital detox and minimalism tools

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $2.99 | per month |
| Pro | $14.99 | per year |
| Pro | $19.99 | per year |
| FlowIn Pro | $3.99 | one-time |


### Mast

[App page](https://appshunter.io/ios/app/mast-commitment-app-blocker/id6792932756)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mast Plus - Weekly | $7.99 | per 7 days |
| Mast Plus - Yearly | $49.99 | per year |


## Frequently asked questions

### Is FlowIn free?

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

### Is Mast free?

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

### Do FlowIn or Mast have ads?

Neither FlowIn nor Mast shows ads.

### Which is updated more often, FlowIn or Mast?

FlowIn ships an update every 4 days, and Mast every 2 weeks. Most recently, FlowIn was updated on August 16, 2026 and Mast on September 14, 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.*