# UpDown vs BMI Calc + Weight Loss Tracker

The clearest difference is price: UpDown at Free against BMI Calc + Weight Loss Tracker's $1.99. UpDown also leads on ads (none vs shown) and update cadence (every 4 weeks vs every 3 months). BMI Calc + Weight Loss Tracker's advantage is iOS requirement (11.0 vs 15.0). On in-app purchases and device support there is nothing between them.

UpDown is free to download; BMI Calc + Weight Loss Tracker costs $1.99 up front. UpDown sells 3 in-app purchases, starting at $1.99 per month and BMI Calc + Weight Loss Tracker sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpDown ships an update every 4 weeks, BMI Calc + Weight Loss Tracker every 3 months. The most recent releases landed on September 9, 2026 and September 1, 2026 respectively.

## The numbers

| Metric | UpDown | BMI Calc + Weight Loss Tracker |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.4 (16 ratings)](https://appshunter.io/ios/app/updown-weight-tracker/id1167706233/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 weeks** | Every 3 months |
| Monetization | Freemium | — |
| Size | 4 MB | 30 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sergei Ivanov](https://appshunter.io/developer/932468091) | [RedTracker LLC](https://appshunter.io/developer/1460840859) |

## What reviewers say

### UpDown

[App page](https://appshunter.io/ios/app/updown-weight-tracker/id1167706233)

Track your weight journey with a comprehensive journal that supports multiple family profiles. Visualize progress with charts, calculate BMI, and set reminders. Syncs with Apple Watch and Health for seamless health monitoring.

**Highlights:** Weight journaling, Multiple user profiles, BMI calculation, Progress charts, Reminders, Apple Watch & Health support, CSV export

**Features:** Family Sharing, Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Version (Monthly) | $1.99 | per month |
| PRO Version (Yearly) | $14.99 | per year |
| PRO Version (Lifetime) | $29.99 | one-time |


### BMI Calc + Weight Loss Tracker

[App page](https://appshunter.io/ios/app/bmi-calc-plus-weight-loss-tracker/id1518282201)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is UpDown free?

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

### Is BMI Calc + Weight Loss Tracker free?

BMI Calc + Weight Loss Tracker costs $1.99, and also offers in-app purchases.

### Do UpDown or BMI Calc + Weight Loss Tracker have ads?

BMI Calc + Weight Loss Tracker shows ads; UpDown does not.

### Which is updated more often, UpDown or BMI Calc + Weight Loss Tracker?

UpDown ships an update every 4 weeks, and BMI Calc + Weight Loss Tracker every 3 months. Most recently, UpDown was updated on September 9, 2026 and BMI Calc + Weight Loss Tracker on September 1, 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.*