# Workout for Underweight vs BulkMate

The clearest difference is in-app purchases: Workout for Underweight at none against BulkMate's 4. BulkMate's advantage is update cadence (every 8 days vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. BulkMate sells 4 in-app purchases, starting at $12.99 per month. Workout for Underweight asks for nothing beyond the download.

Workout for Underweight ships an update monthly, BulkMate every 8 days. The most recent releases landed on September 13, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Workout for Underweight | BulkMate |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 8 days** |
| Size | 66 MB | 69 MB |
| Requires iOS | **16.0** | 16.4 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ngoc Thanh Pham](https://appshunter.io/developer/907794619) | [Wayfinity Ltd](https://appshunter.io/developer/1828201904) |

## What reviewers say

### Workout for Underweight

[App page](https://appshunter.io/ios/app/workout-for-underweight/id6746104775)

**Features:** macOS Compatibility

**In-app purchases:** none


### BulkMate

[App page](https://appshunter.io/ios/app/bulkmate-weight-gain-tracker/id6789936608)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $12.99 | per month |
| Premium Annual Saver | $39.99 | per year |
| Premium Annual | $59.99 | per year |
| Premium Annual | $59.99 | per year |


## Frequently asked questions

### Is Workout for Underweight free?

Workout for Underweight is free to download, with no in-app purchases.

### Is BulkMate free?

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

### Do Workout for Underweight or BulkMate have ads?

Neither Workout for Underweight nor BulkMate shows ads.

### Which is updated more often, Workout for Underweight or BulkMate?

Workout for Underweight ships an update monthly, and BulkMate every 8 days. Most recently, Workout for Underweight was updated on September 13, 2026 and BulkMate on September 9, 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.*