# Siskin IM vs Beta Chi Lambda

The clearest difference is update cadence: Siskin IM at every 2 months against Beta Chi Lambda's every 40 months. 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.

Siskin IM ships an update every 2 months, Beta Chi Lambda every 40 months. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Siskin IM | Beta Chi Lambda |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (33 ratings)](https://appshunter.io/ios/app/siskin-im/id1153516838/reviews)** | — |
| Number of ratings | **33** | — |
| Positive reviews | 46.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 40 months |
| Monetization | Free | — |
| Size | 26 MB | 25 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tigase, Inc.](https://appshunter.io/developer/1153516837) | [Ricardo Cumberbatch](https://appshunter.io/developer/1455104172) |

## What reviewers say

### Siskin IM

[App page](https://appshunter.io/ios/app/siskin-im/id1153516838)

A powerful and lightweight XMPP client for seamless communication. Manage multiple accounts, access chat history, and enjoy features like push notifications and file sharing. Ideal for both new and experienced XMPP users.

**Highlights:** Multi-account management, Message archive access, Chatroom support, Automated status management, In-band account registration, Push notifications, File sharing, VoIP calls

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

**In-app purchases:** none


### Beta Chi Lambda

[App page](https://appshunter.io/ios/app/beta-chi-lambda/id1642503859)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Siskin IM free?

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

### Is Beta Chi Lambda free?

Beta Chi Lambda is free to download, with no in-app purchases.

### Do Siskin IM or Beta Chi Lambda have ads?

Neither Siskin IM nor Beta Chi Lambda shows ads.

### Which is updated more often, Siskin IM or Beta Chi Lambda?

Siskin IM ships an update every 2 months, and Beta Chi Lambda every 40 months. Most recently, Siskin IM was updated on November 2, 2026 and Beta Chi Lambda on November 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*