# iSoundBath vs KrystoLab

The clearest difference is in-app purchases: iSoundBath at none against KrystoLab's 3. KrystoLab's advantage is update cadence (every 8 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. KrystoLab sells 3 in-app purchases, starting at $9.99 per month. iSoundBath asks for nothing beyond the download.

iSoundBath ships an update every 2 weeks, KrystoLab every 8 days. The most recent releases landed on October 10, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | iSoundBath | KrystoLab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/krystolab/id6761610596/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 8 days** |
| Monetization | — | Free with in-app purchases |
| Size | 400 MB | 60 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stephannie Jones](https://appshunter.io/developer/1734868781) | [明谕 邹](https://appshunter.io/developer/1887272103) |

## What reviewers say

### iSoundBath

[App page](https://appshunter.io/ios/app/isoundbath/id6749166753)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### KrystoLab

[App page](https://appshunter.io/ios/app/krystolab/id6761610596)

Explore ancient wisdom for modern life with this app. It offers tools for divination, dream interpretation, birth chart analysis, and crystal knowledge. Discover your fortune, understand your destiny, and find balance through personalized readings and recommendations.

**Highlights:** Check My Luck divination, Dream Decoder, BaZi Birth Chart Reading, Chakra Reading with crystal recommendations, Book of Answers oracle, Crystal Codex with 220+ crystals, Sound Bath for meditation

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Krystolab Premium Monthly | $9.99 | per month |
| Krystolab Premium Yearly | $83.90 | per year |
| BaZi Full Report | $4.99 | one-time |


## Frequently asked questions

### Is iSoundBath free?

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

### Is KrystoLab free?

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

### Do iSoundBath or KrystoLab have ads?

Neither iSoundBath nor KrystoLab shows ads.

### Which is updated more often, iSoundBath or KrystoLab?

iSoundBath ships an update every 2 weeks, and KrystoLab every 8 days. Most recently, iSoundBath was updated on October 10, 2026 and KrystoLab on October 6, 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.*