# Zōn vs Stackd

The clearest difference is in-app purchases: Stackd at none against Zōn's 3. Stackd also leads on update cadence (daily vs every 3 days). Zōn's advantage is device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Zōn sells 3 in-app purchases, starting at $8.99 per month. Stackd asks for nothing beyond the download.

Zōn ships an update every 3 days, Stackd daily. The most recent releases landed on October 4, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Zōn | Stackd |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/stackd-ai-workout-tracker/id6760304570/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 days | **Daily** |
| Monetization | — | Free |
| Size | 68 MB | 9 MB |
| Requires iOS | **26.0** | 26.2 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 12+ | 17+ |
| Developer | [Tom AGRO](https://appshunter.io/developer/1872134083) | [Jovan Petrovic](https://appshunter.io/developer/1827616732) |

## What reviewers say

### Zōn

[App page](https://appshunter.io/ios/app/zon-workout-tracker-and-coach/id6758308655)

**Features:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Zon Pro | $8.99 | per month |
| Quarterly Zon Pro | $22.99 | per 3 months |
| Yearly Pro Subscription | $69.99 | per year |


### Stackd

[App page](https://appshunter.io/ios/app/stackd-ai-workout-tracker/id6760304570)

This app allows you to import AI-generated workout and meal plans directly into a tracking interface. Log your sessions, monitor progress with strength charts, and track nutrition macros all in one place without manual template entry.

**Highlights:** Import AI workouts via JSON, Log sets, reps, and weight, Automatic weight recommendations, Estimated 1-rep max charts, Full session history, Nutrition and macro tracking

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Zōn free?

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

### Is Stackd free?

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

### Do Zōn or Stackd have ads?

Neither Zōn nor Stackd shows ads.

### Which is updated more often, Zōn or Stackd?

Zōn ships an update every 3 days, and Stackd daily. Most recently, Zōn was updated on October 4, 2026 and Stackd on October 3, 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.*