# UnderForge vs Workout Planner

The clearest difference is iOS requirement: UnderForge at 15.1 against Workout Planner's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. UnderForge sells 3 in-app purchases, starting at $3.99 per 7 days and Workout Planner sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

UnderForge ships an update every 10 days, Workout Planner fortnightly. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | UnderForge | Workout Planner |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Fortnightly |
| Size | 128 MB | 81 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 17+ | 12+ |
| Developer | [Venture CO Group Korlatolt Felelossegu Tarsasag](https://appshunter.io/developer/6800294425) | [Burak Ozaslan](https://appshunter.io/developer/1891727368) |

## What reviewers say

### UnderForge

[App page](https://appshunter.io/ios/app/underforge/id6758098630)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| UnderForge Premium Weekly | $3.99 | per 7 days |
| UnderForge Premium Quarterly | $29.99 | per 3 months |
| UnderForge Premium Yearly | $89.99 | per year |


### Workout Planner

[App page](https://appshunter.io/ios/app/workout-planner-dynaimic/id6761840180)

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| dynaimic Pro | $6.99 | per month |
| dynaimic Pro — Annual | $39.99 | per year |


## Frequently asked questions

### Is UnderForge free?

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

### Is Workout Planner free?

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

### Do UnderForge or Workout Planner have ads?

Neither UnderForge nor Workout Planner shows ads.

### Which is updated more often, UnderForge or Workout Planner?

UnderForge ships an update every 10 days, and Workout Planner fortnightly. Most recently, UnderForge was updated on October 28, 2026 and Workout Planner 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.*