# Cat Flow vs PileStack

The clearest difference is rating: PileStack at 5.0 against Cat Flow's 4.0. PileStack also leads on update cadence (every 4 days vs fortnightly). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Cat Flow sells 13 in-app purchases, starting at $1.99 per month and PileStack sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

PileStack holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Cat Flow ships an update fortnightly, PileStack every 4 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Cat Flow | PileStack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/cat-flow-kitty-focus-timer/id6702013134/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/pilestack-link-saver/id6767052477/reviews)** |
| Number of ratings | 2 | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 143 MB | 14 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Nicole Cat](https://appshunter.io/developer/1715438272) | [Temuri Chitashvili](https://appshunter.io/developer/1895283893) |

## What reviewers say

### Cat Flow

[App page](https://appshunter.io/ios/app/cat-flow-kitty-focus-timer/id6702013134)

This app uses a cat-themed interface to help users improve focus and build disciplined habits. It offers a companion-style focus mode where virtual cats protect your time, and immersive scenified spaces for concentration. Detailed data review helps track progress and unlock new cats and scenes.

**Highlights:** Companion-style focus with virtual cats, Scenified spaces for immersive focus, Customizable times, scenes, and themes, Multidimensional focus data review, Unlockable cats and scenes, Gravity sensor for focus session triggers

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

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Yearly | $11.99 | per year |
| Bella | $0.99 | one-time |
| Gizmo | $0.99 | one-time |
| Toby | $0.99 | one-time |
| Simba | $1.99 | one-time |
| Lucky | $1.99 | one-time |
| Coco | $1.99 | one-time |
| Loki | $1.99 | one-time |
| Forest | $2.99 | one-time |
| Sky | $2.99 | one-time |
| Moonnight | $2.99 | one-time |
| Jingle | $2.99 | one-time |


### PileStack

[App page](https://appshunter.io/ios/app/pilestack-link-saver/id6767052477)

Save articles, videos, recipes, and links from anywhere into a unified library. Organize your saved content with custom collections and easily find what you need. Get reminders for old saves to make your content useful.

**Highlights:** Save articles, videos, and links, Customizable collections, Drag-and-drop reordering, Search saved content, Mark items as read, Reminders for old saves, Syncs via iCloud

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PileStack Pro Weekly | $1.99 | per 7 days |
| PileStack Pro Monthly | $2.99 | per month |
| PileStack Pro Yearly | $17.99 | per year |


## Frequently asked questions

### Is Cat Flow free?

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

### Is PileStack free?

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

### Which has better reviews, Cat Flow or PileStack?

PileStack is rated higher. Cat Flow averages 4.0 out of 5 from 2 ratings, while PileStack averages 5.0 from 2 ratings.

### Do Cat Flow or PileStack have ads?

Neither Cat Flow nor PileStack shows ads.

### Which is updated more often, Cat Flow or PileStack?

Cat Flow ships an update fortnightly, and PileStack every 4 days. Most recently, Cat Flow was updated on October 24, 2026 and PileStack 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.*