# G.Bar vs CausalChain

The clearest difference is iOS requirement: G.Bar at 15.6 against CausalChain's 27.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

G.Bar ships an update every 2 weeks, CausalChain every 3 weeks. The most recent releases landed on October 15, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | G.Bar | CausalChain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (9 ratings)](https://appshunter.io/ios/app/gbar/id1231422460/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 14.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | Free | — |
| Size | 30 MB | 133 MB |
| Requires iOS | **15.6** | 27.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Borodina TOV](https://appshunter.io/developer/1231422459) | [Dmytro Yerebakan](https://appshunter.io/developer/1886243084) |

## What reviewers say

### G.Bar

[App page](https://appshunter.io/ios/app/gbar/id1231422460)

Easily book beauty services like manicures, makeup, and hairstyles online. Select your preferred service, master, and time, and receive appointment reminders. View service costs, booking history, and master ratings.

**Highlights:** Online booking for beauty services, Select specific masters or any available, Book multiple services at once, View service costs and booking history, Browse master profiles with ratings and reviews, Find salon locations and get directions, Rate masters and leave service reviews

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

**In-app purchases:** none


### CausalChain

[App page](https://appshunter.io/ios/app/causalchain/id6760855291)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is G.Bar free?

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

### Is CausalChain free?

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

### Do G.Bar or CausalChain have ads?

Neither G.Bar nor CausalChain shows ads.

### Which is updated more often, G.Bar or CausalChain?

G.Bar ships an update every 2 weeks, and CausalChain every 3 weeks. Most recently, G.Bar was updated on October 15, 2026 and CausalChain 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.*