# i vs CausalChain

The clearest difference is update cadence: i at every 5 days against CausalChain's every 3 weeks. i also leads on iOS requirement (15.0 vs 27.0). On price, ads, in-app purchases and device support there is nothing between them.

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

i ships an update every 5 days, CausalChain every 3 weeks. The most recent releases landed on October 5, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | i | CausalChain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/i-gate/id1288220521/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Monetization | Free | — |
| Size | 168 MB | 133 MB |
| Requires iOS | **15.0** | 27.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [I GATE (PTY) LTD](https://appshunter.io/developer/1479439793) | [Dmytro Yerebakan](https://appshunter.io/developer/1886243084) |

## What reviewers say

### i

[App page](https://appshunter.io/ios/app/i-gate/id1288220521)

Easily invite visitors by sending them access codes via SMS, iMessage, or WhatsApp. Receive notifications for entry, exit, emergencies, and newsletters.

**Highlights:** Invite visitors via contacts, Send invitations via SMS, iMessage, WhatsApp, Generate Personal Access Codes (PAC), Message inbox for notifications, Courtesy entry/exit notifications, Emergency alerts, Newsletter delivery

**Features:** Apple Wallet, 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 i free?

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

### Is CausalChain free?

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

### Do i or CausalChain have ads?

Neither i nor CausalChain shows ads.

### Which is updated more often, i or CausalChain?

i ships an update every 5 days, and CausalChain every 3 weeks. Most recently, i was updated on October 5, 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.*