# Workout for Underweight vs WeightUp

The clearest difference is in-app purchases: Workout for Underweight at none against WeightUp's 1. Workout for Underweight also leads on iOS requirement (16.0 vs 26.1). WeightUp's advantage is update cadence (every 5 days vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. WeightUp sells 1 in-app purchase, starting at $6.99 per month. Workout for Underweight asks for nothing beyond the download.

Workout for Underweight ships an update monthly, WeightUp every 5 days. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Workout for Underweight | WeightUp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/workout-for-underweight/id6746104775/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | Free | — |
| Size | 66 MB | 15 MB |
| Requires iOS | **16.0** | 26.1 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Ngoc Thanh Pham](https://appshunter.io/developer/907794619) | [Jimpei Yamamoto](https://appshunter.io/developer/1510733955) |

## What reviewers say

### Workout for Underweight

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

This app helps underweight individuals gain weight through personalized nutrition plans, guided workouts, and health tracking. It offers meal and workout reminders, smoothie recipes, and daily health insights to support a sustainable journey to improved health and physique.

**Highlights:** Weight and body metric tracking, Personalized weight gain meal plans, Guided weight gain training programs, Workout and meal reminders, Smoothie and snack recipes, Daily health insights and progress reports

**Features:** macOS Compatibility

**In-app purchases:** none


### WeightUp

[App page](https://appshunter.io/ios/app/weightup-weight-gain-tracker/id6753589816)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $6.99 | per month |


## Frequently asked questions

### Is Workout for Underweight free?

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

### Is WeightUp free?

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

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

Neither Workout for Underweight nor WeightUp shows ads.

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

Workout for Underweight ships an update monthly, and WeightUp every 5 days. Most recently, Workout for Underweight was updated on October 30, 2026 and WeightUp on November 5, 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.*