# Stackd vs Quiet Iron

The clearest difference is update cadence: Stackd at daily against Quiet Iron's every 2 months. Quiet Iron's advantage is iOS requirement (17.0 vs 26.2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Stackd ships an update daily, Quiet Iron every 2 months. The most recent releases landed on October 3, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Stackd | Quiet Iron |
| --- | --- | --- |
| 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 | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Every 2 months |
| Monetization | Free | — |
| Size | 9 MB | 3 MB |
| Requires iOS | 26.2 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Jovan Petrovic](https://appshunter.io/developer/1827616732) | [Tarek Sebaihi](https://appshunter.io/developer/1882907244) |

## What reviewers say

### 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


### Quiet Iron

[App page](https://appshunter.io/ios/app/quiet-iron/id6775338700)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Stackd free?

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

### Is Quiet Iron free?

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

### Do Stackd or Quiet Iron have ads?

Neither Stackd nor Quiet Iron shows ads.

### Which is updated more often, Stackd or Quiet Iron?

Stackd ships an update daily, and Quiet Iron every 2 months. Most recently, Stackd was updated on October 3, 2026 and Quiet Iron on September 22, 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.*