# Aerth Saunas vs Flow Glow

The clearest difference is in-app purchases: Aerth Saunas at none against Flow Glow's 2. Flow Glow's advantage is update cadence (every 6 days vs every 2 weeks) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Flow Glow sells 2 in-app purchases, starting at $7.99 per month. Aerth Saunas asks for nothing beyond the download.

Aerth Saunas ships an update every 2 weeks, Flow Glow every 6 days. The most recent releases landed on October 21, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Aerth Saunas | Flow Glow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/flow-glow/id6769487863/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 6 days** |
| Monetization | — | Free with in-app purchases |
| Size | 38 MB | 16 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [AERTH SAUNA CORP.](https://appshunter.io/developer/1803481386) | [Kristina Kozicynaite](https://appshunter.io/developer/1882882099) |

## What reviewers say

### Aerth Saunas

[App page](https://appshunter.io/ios/app/aerth-saunas/id6743568947)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Flow Glow

[App page](https://appshunter.io/ios/app/flow-glow/id6769487863)

This app syncs your skincare routine with your menstrual cycle, offering personalized advice based on hormonal changes. It tracks your skin's needs through five distinct phases, providing science-backed routines and product recommendations.

**Highlights:** Phase-synced skincare routines, Product shelf with safety ratings, Skin phase guidance and science, Daily skin logging and insights, Before and after photo comparisons, Clinic treatment timing guide, Ingredient conflict checker, Phase-specific food recommendations

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $7.99 | per month |
| Annual | $39.99 | per year |


## Frequently asked questions

### Is Aerth Saunas free?

Aerth Saunas is free to download, with no in-app purchases.

### Is Flow Glow free?

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

### Do Aerth Saunas or Flow Glow have ads?

Neither Aerth Saunas nor Flow Glow shows ads.

### Which is updated more often, Aerth Saunas or Flow Glow?

Aerth Saunas ships an update every 2 weeks, and Flow Glow every 6 days. Most recently, Aerth Saunas was updated on October 21, 2026 and Flow Glow on October 14, 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.*