# Noodle vs Posture Trainer

The clearest difference is update cadence: Noodle at every 5 days against Posture Trainer's monthly. Posture Trainer's advantage is iOS requirement (17.0 vs 26.4). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Noodle sells 6 in-app purchases, starting at $2.99 per 7 days and Posture Trainer sells 3 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Noodle ships an update every 5 days, Posture Trainer monthly. Both last shipped on October 25, 2026.

## The numbers

| Metric | Noodle | Posture Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/noodle-posture-reminder/id6765840771/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 55 MB | 13 MB |
| Requires iOS | 26.4 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | +4 | 4+ |
| Developer | [Spam Musubi Technologies](https://appshunter.io/developer/1698942015) | [Phuc Pham](https://appshunter.io/developer/1893081423) |

## What reviewers say

### Noodle

[App page](https://appshunter.io/ios/app/noodle-posture-reminder/id6765840771)

This app uses supported headphones to detect and alert you when you're slouching, helping you build better posture habits. It offers a free trial and gamified progress tracking with unlockable rewards.

**Highlights:** Slouch and hunch detection with supported headphones, Gentle posture alerts and notifications, Live Activity and widget for at-a-glance posture, Gamified progress tracking with ranks and rewards, Adjustable detection sensitivity, On-device motion processing

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Monthly | $4.99 | per month |
| Annual Extreme Discount | $9.99 | per year |
| Annual Discount | $19.99 | per year |
| Annual | $24.99 | per year |
| Annual | $24.99 | per year |


### Posture Trainer

[App page](https://appshunter.io/ios/app/posture-trainer-sit-straight/id6772211099)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $6.99 | per 7 days |
| Yearly | $34.99 | per year |
| Lifetime Pro | $69.99 | one-time |


## Frequently asked questions

### Is Noodle free?

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

### Is Posture Trainer free?

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

### Do Noodle or Posture Trainer have ads?

Neither Noodle nor Posture Trainer shows ads.

### Which is updated more often, Noodle or Posture Trainer?

Noodle ships an update every 5 days, and Posture Trainer monthly. Most recently, Noodle was updated on October 25, 2026 and Posture Trainer on October 25, 2026.

---

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