# Zen Day Spa vs Stellar Lab

The clearest difference is in-app purchases: Zen Day Spa at none against Stellar Lab's 7. Zen Day Spa also leads on iOS requirement (13.0 vs 17.0). Stellar Lab's advantage is update cadence (every 6 days vs every 10 months). On price, ads and device support there is nothing between them.

Both are free to download. Stellar Lab sells 7 in-app purchases, starting at $3.99 per 7 days. Zen Day Spa asks for nothing beyond the download.

Zen Day Spa ships an update every 10 months, Stellar Lab every 6 days. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Zen Day Spa | Stellar Lab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (33 ratings)](https://appshunter.io/ios/app/stellar-lab-astrology-guide/id6480304595/reviews)** |
| Number of ratings | — | **33** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 6 days** |
| Monetization | — | Free with in-app purchases |
| Size | 33 MB | 169 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Phorest](https://appshunter.io/developer/623199517) | [Vasili Murashka](https://appshunter.io/developer/715093089) |

## What reviewers say

### Zen Day Spa

[App page](https://appshunter.io/ios/app/zen-day-spa/id1375553812)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Stellar Lab

[App page](https://appshunter.io/ios/app/stellar-lab-astrology-guide/id6480304595)

Explore your life and relationships through the lens of astrology. Discover zodiac compatibility, learn about celestial influences, and receive personalized daily insights. Experience augmented reality views of planetary positions.

**Highlights:** Zodiac compatibility reports, Extensive astrological information library, Personalized chat features, Augmented reality planetary views, Daily personalized predictions, Learn about planets and stars

**Features:** Family Sharing

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stellar Lab Premium Weekly | $3.99 | per 7 days |
| Stellar Lab Plus Weekly | $4.99 | per 7 days |
| Stellar Lab Premium Weekly | $7.99 | per 7 days |
| Stellar Lab Plus Monthly | $9.99 | per month |
| Stellar Lab Premium 3 Months | $19.99 | per 3 months |
| Stellar Lab Plus Yearly | $39.99 | per year |
| Stellar Lab Premium Yearly | $49.99 | per year |


## Frequently asked questions

### Is Zen Day Spa free?

Zen Day Spa is free to download, with no in-app purchases.

### Is Stellar Lab free?

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

### Do Zen Day Spa or Stellar Lab have ads?

Neither Zen Day Spa nor Stellar Lab shows ads.

### Which is updated more often, Zen Day Spa or Stellar Lab?

Zen Day Spa ships an update every 10 months, and Stellar Lab every 6 days. Most recently, Zen Day Spa was updated on November 2, 2026 and Stellar Lab on October 30, 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.*