# Stack vs GassiTrail

The clearest difference is in-app purchases: GassiTrail at none against Stack's 3. Stack's advantage is iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Stack sells 3 in-app purchases, starting at $3.99 per month. GassiTrail asks for nothing beyond the download.

## The numbers

| Metric | Stack | GassiTrail |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 days | — |
| Size | 62 MB | 6 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Naveen Senapathi](https://appshunter.io/developer/1889130875) | [Andrii Kurhanskyi](https://appshunter.io/developer/1581215212) |

## What reviewers say

### Stack

[App page](https://appshunter.io/ios/app/stack-routine-tracker/id6761363465)

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stack Pro Monthly | $3.99 | per month |
| Stack Pro Annual | $39.99 | per year |
| Stack Pro Lifetime | $79.99 | one-time |


### GassiTrail

[App page](https://appshunter.io/ios/app/gassitrail-dog-walk-tracker/id6792043193)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Stack free?

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

### Is GassiTrail free?

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

### Do Stack or GassiTrail have ads?

Neither Stack nor GassiTrail shows ads.

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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.*