# Stacks vs FocusFlow

The clearest difference is update cadence: FocusFlow at every 9 days against Stacks's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Stacks sells 2 in-app purchases, starting at $3.99 per month and FocusFlow sells 3 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

Stacks ships an update every 3 weeks, FocusFlow every 9 days. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Stacks | FocusFlow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Size | 73 MB | 24 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Aurelien Durier](https://appshunter.io/developer/1896668183) | [杰 陈](https://appshunter.io/developer/1746018277) |

## What reviewers say

### Stacks

[App page](https://appshunter.io/ios/app/stacks-calorie-and-workout/id6769554455)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stacks Pro Monthly | $3.99 | per month |
| Stacks Pro Annual | $34.99 | per year |


### FocusFlow

[App page](https://appshunter.io/ios/app/focusflow-adhd-planner/id6780878336)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FocusFlow Pro Monthly | $5.99 | per month |
| FocusFlow Pro Annual | $49.99 | per year |
| FocusFlow Pro Lifetime | $149.99 | one-time |


## Frequently asked questions

### Is Stacks free?

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

### Is FocusFlow free?

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

### Do Stacks or FocusFlow have ads?

Neither Stacks nor FocusFlow shows ads.

### Which is updated more often, Stacks or FocusFlow?

Stacks ships an update every 3 weeks, and FocusFlow every 9 days. Most recently, Stacks was updated on October 28, 2026 and FocusFlow on October 24, 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.*