# Chatium vs Redmine CSD

The clearest difference is review sentiment: Chatium at 54% against Redmine CSD's 0%. Chatium also leads on update cadence (every 2 days vs every 2 months). Redmine CSD's advantage is in-app purchases (none vs 1) and iOS requirement (15.3 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Chatium sells 1 in-app purchase, starting at $39.99 per month. Redmine CSD asks for nothing beyond the download.

Chatium ships an update every 2 days, Redmine CSD every 2 months. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Chatium | Redmine CSD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (39 ratings)](https://appshunter.io/ios/app/chatium/id1559581934/reviews)** | — |
| Number of ratings | **39** | — |
| Positive reviews | **53.8% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 17 MB | 35 MB |
| Requires iOS | 17.0 | **15.3** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chatium](https://appshunter.io/developer/1559581936) | [Russian IT Group](https://appshunter.io/developer/456202374) |

## What reviewers say

### Chatium

[App page](https://appshunter.io/ios/app/chatium/id1559581934)

Manage your existing Chatium account or create a new one. This application allows for seamless account management and offers subscriptions through in-app purchases.

**Highlights:** Manage existing Chatium accounts, Create new Chatium accounts, Subscribe to Chatium accounts, In-app purchase subscriptions

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chatium platform access | $39.99 | per month |


### Redmine CSD

[App page](https://appshunter.io/ios/app/redmine-csd/id6740817558)

Automate your time tracking for tasks with a mobile client for Redmine. Easily log hours using a timer, manually input work, and update task statuses. Stay informed about project progress and manage your time effectively.

**Highlights:** Automated time tracking with a timer, Manual time entry, Task status updates, View assigned tasks and details, Add comments to tasks, Server connection management

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Chatium free?

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

### Is Redmine CSD free?

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

### Do Chatium or Redmine CSD have ads?

Neither Chatium nor Redmine CSD shows ads.

### Which is updated more often, Chatium or Redmine CSD?

Chatium ships an update every 2 days, and Redmine CSD every 2 months. Most recently, Chatium was updated on October 27, 2026 and Redmine CSD on October 24, 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.*