# StayUpRight! vs Second Wind

The clearest difference is in-app purchases: StayUpRight! at none against Second Wind's 3. Second Wind's advantage is update cadence (weekly vs every 2 weeks) and iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Second Wind sells 3 in-app purchases, starting at $12.99 per month. StayUpRight! asks for nothing beyond the download.

StayUpRight! ships an update every 2 weeks, Second Wind weekly. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | StayUpRight! | Second Wind |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/stayupright/id6761411871/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Free | — |
| Size | 46 MB | 137 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Upright Science, Inc](https://appshunter.io/developer/1882993374) | [FastCart LLC](https://appshunter.io/developer/6803015413) |

## What reviewers say

### StayUpRight!

[App page](https://appshunter.io/ios/app/stayupright/id6761411871)

Measure your balance using your phone's sensors. Track scores over time and sync with Apple Health data like sleep and steps. This app helps you monitor postural sway to understand your balance capabilities.

**Highlights:** Balance measurement via phone sensors, Postural sway quantification, Three simple balance poses, Score tracking over time, Apple Health data sync, Audio and written instructions

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

**In-app purchases:** none


### Second Wind

[App page](https://appshunter.io/ios/app/second-wind-knee-exercises/id6803015411)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $12.99 | per month |
| AI Companion Monthly | $25.00 | per month |
| Premium Yearly | $59.99 | per year |


## Frequently asked questions

### Is StayUpRight! free?

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

### Is Second Wind free?

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

### Do StayUpRight! or Second Wind have ads?

Neither StayUpRight! nor Second Wind shows ads.

### Which is updated more often, StayUpRight! or Second Wind?

StayUpRight! ships an update every 2 weeks, and Second Wind weekly. Most recently, StayUpRight! was updated on October 24, 2026 and Second Wind on October 29, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*