# Flow Clock vs Drop [Stacking ToDo]

The clearest difference is in-app purchases: Drop [Stacking ToDo] at none against Flow Clock's 3. Flow Clock's advantage is iOS requirement (17 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Flow Clock sells 3 in-app purchases, starting at $2.49 per month. Drop [Stacking ToDo] asks for nothing beyond the download.

Flow Clock ships an update fortnightly, Drop [Stacking ToDo] every 9 days. The most recent releases landed on October 2, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Flow Clock | Drop [Stacking ToDo] |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 9 days** |
| Monetization | Freemium | — |
| Size | 23 MB | 3 MB |
| Requires iOS | **17** | 26.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [睿 瞿](https://appshunter.io/developer/1705636454) | [YUTO KUWABARA](https://appshunter.io/developer/1823941304) |

## What reviewers say

### Flow Clock

[App page](https://appshunter.io/ios/app/flow-clock-neat-pomodoro/id6464373984)

Enhance focus and manage your time with a flexible Pomodoro timer. Block distractions, track your sessions with tags, and review your productivity visually. Adapt work intervals to your personal workflow for optimal concentration and reduced procrastination.

**Highlights:** Flexible Pomodoro timer, App blocking for focus, Tag and comment sessions, Visual timeline review, Insightful productivity stats, Break and relaxation timer

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly PRO | $2.49 | per month |
| Yearly PRO | $15.00 | per year |
| Lifetime PRO | $30.00 | one-time |


### Drop [Stacking ToDo]

[App page](https://appshunter.io/ios/app/drop-stacking-todo/id6771991890)

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

**In-app purchases:** none


## Frequently asked questions

### Is Flow Clock free?

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

### Is Drop [Stacking ToDo] free?

Drop [Stacking ToDo] is free to download, with no in-app purchases.

### Do Flow Clock or Drop [Stacking ToDo] have ads?

Neither Flow Clock nor Drop [Stacking ToDo] shows ads.

### Which is updated more often, Flow Clock or Drop [Stacking ToDo]?

Flow Clock ships an update fortnightly, and Drop [Stacking ToDo] every 9 days. Most recently, Flow Clock was updated on October 2, 2026 and Drop [Stacking ToDo] on October 13, 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.*