# DIA Fitness Strength Training vs Stackd

The clearest difference is in-app purchases: Stackd at none against DIA Fitness Strength Training's 2. Stackd also leads on update cadence (daily vs every 3 weeks). DIA Fitness Strength Training's advantage is iOS requirement (16.4 vs 26.2). On price, ads and device support there is nothing between them.

Both are free to download. DIA Fitness Strength Training sells 2 in-app purchases, starting at $12.99 per month. Stackd asks for nothing beyond the download.

DIA Fitness Strength Training ships an update every 3 weeks, Stackd daily. The most recent releases landed on October 25, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | DIA Fitness Strength Training | Stackd |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/stackd-ai-workout-tracker/id6760304570/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Daily** |
| Monetization | — | Free |
| Size | 76 MB | 9 MB |
| Requires iOS | **16.4** | 26.2 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Maravista Software LLC](https://appshunter.io/developer/1242105556) | [Jovan Petrovic](https://appshunter.io/developer/1827616732) |

## What reviewers say

### DIA Fitness Strength Training

[App page](https://appshunter.io/ios/app/dia-fitness-strength-training/id6759975464)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $12.99 | per month |
| Yearly | $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 DIA Fitness Strength Training free?

DIA Fitness Strength Training is free to download, with in-app purchases available.

### Is Stackd free?

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

### Do DIA Fitness Strength Training or Stackd have ads?

Neither DIA Fitness Strength Training nor Stackd shows ads.

### Which is updated more often, DIA Fitness Strength Training or Stackd?

DIA Fitness Strength Training ships an update every 3 weeks, and Stackd daily. Most recently, DIA Fitness Strength Training was updated on October 25, 2026 and Stackd on October 20, 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.*