# Trillian vs 그린메시지

The clearest difference is in-app purchases: 그린메시지 at none against Trillian's 4. 그린메시지 also leads on iOS requirement (9.0 vs 15.0). Trillian's advantage is update cadence (weekly vs every 3 months) and review sentiment (57% vs 33%). On price and ads there is nothing between them.

Both are free to download. Trillian sells 4 in-app purchases, starting at $4.99 per month. 그린메시지 asks for nothing beyond the download.

Trillian ships an update weekly, 그린메시지 every 3 months. The most recent releases landed on September 25, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Trillian | 그린메시지 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (574 ratings)](https://appshunter.io/ios/app/trillian/id327603487/reviews)** | — |
| Number of ratings | **574** | — |
| Positive reviews | **57.3% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 41 MB | 3 MB |
| Requires iOS | 15.0 | **9.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cerulean Studios, LLC](https://appshunter.io/developer/327603490) | [비즈플레이(주)](https://appshunter.io/developer/1056025365) |

## What reviewers say

### Trillian

[App page](https://appshunter.io/ios/app/trillian/id327603487)

This secure messaging platform offers instant communication for businesses, healthcare organizations, and individuals. It modernizes employee communication, provides HIPAA-compliant messaging for healthcare, and allows free, private communication for personal use.

**Highlights:** Secure business instant messaging, HIPAA-compliant healthcare communication, Free individual messaging, Modern employee communication, Privacy-focused personal chat

**Features:** Siri integration, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Trillian Pro - Monthly | $4.99 | per month |
| Trillian Pro - Yearly | $47.99 | per year |
| Trillian Pro - One Month | $4.99 | one-time |
| Trillian Pro - One Year | $47.90 | one-time |


### 그린메시지

[App page](https://appshunter.io/ios/app/id903283980)

**In-app purchases:** none


## Frequently asked questions

### Is Trillian free?

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

### Is 그린메시지 free?

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

### Do Trillian or 그린메시지 have ads?

Neither Trillian nor 그린메시지 shows ads.

### Which is updated more often, Trillian or 그린메시지?

Trillian ships an update weekly, and 그린메시지 every 3 months. Most recently, Trillian was updated on September 25, 2026 and 그린메시지 on September 10, 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.*