# Spa 4 Elements vs Pillar

The clearest difference is in-app purchases: Spa 4 Elements at none against Pillar's 2. Spa 4 Elements also leads on iOS requirement (16.0 vs 18.0). Pillar's advantage is update cadence (every 10 days vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Pillar sells 2 in-app purchases, starting at $7.99 per 7 days. Spa 4 Elements asks for nothing beyond the download.

Spa 4 Elements ships an update every 3 weeks, Pillar every 10 days. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Spa 4 Elements | Pillar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pillar-posture-reminder/id6809597345/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Monetization | — | Freemium |
| Size | 135 MB | 27 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Andrea Solutions](https://appshunter.io/developer/1734094747) | [Maksym Pustovit](https://appshunter.io/developer/1886895390) |

## What reviewers say

### Spa 4 Elements

[App page](https://appshunter.io/ios/app/spa-4-elements/id6758737812)

**Features:** Apple Wallet

**In-app purchases:** none


### Pillar

[App page](https://appshunter.io/ios/app/pillar-posture-reminder/id6809597345)

Improve your posture and focus with this app that uses your AirPods' motion sensors to detect slouching. It provides gentle nudges and tracks your progress over time, integrating with Pomodoro timers for enhanced productivity. No camera or extra wearables are required.

**Highlights:** Live posture reading via AirPods motion sensors, Gentle, responsive nudges for slouching, Integrated Pomodoro focus and break timer, Daily tall-time goal and streak tracking, Weekly trend and session insights, Live Activity and widget support

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pillar Premium Weekly | $7.99 | per 7 days |
| Pillar Premium Yearly | $28.99 | per year |


## Frequently asked questions

### Is Spa 4 Elements free?

Spa 4 Elements is free to download, with no in-app purchases.

### Is Pillar free?

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

### Do Spa 4 Elements or Pillar have ads?

Neither Spa 4 Elements nor Pillar shows ads.

### Which is updated more often, Spa 4 Elements or Pillar?

Spa 4 Elements ships an update every 3 weeks, and Pillar every 10 days. Most recently, Spa 4 Elements was updated on October 28, 2026 and Pillar on October 24, 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.*