# IRUM vs Bluck

The clearest difference is in-app purchases: IRUM at none against Bluck's 1. Bluck's advantage is device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. Bluck sells 1 in-app purchase, starting at $1.99 per month. IRUM asks for nothing beyond the download.

IRUM ships an update every 2 weeks, Bluck every 11 days. The most recent releases landed on October 7, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | IRUM | Bluck |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 11 days** |
| Monetization | Free | — |
| Size | 6 MB | 120 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SANGYEOL CHOI](https://appshunter.io/developer/1773696431) | [Seungrae Cho](https://appshunter.io/developer/1620778100) |

## What reviewers say

### IRUM

[App page](https://appshunter.io/ios/app/irum/id6736890282)

Create affirmations, set duration and repetition goals, and track your progress with a counting feature. Monitor your daily mood and achieve your aspirations, from career goals to personal well-being.

**Highlights:** Affirmation creation, Goal setting (duration, count), Progress tracking dashboard, Daily mood logging, Counting feature for affirmations

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

**In-app purchases:** none


### Bluck

[App page](https://appshunter.io/ios/app/bluck-challenge-tracker/id6740204211)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| pro plan | $1.99 | per month |


## Frequently asked questions

### Is IRUM free?

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

### Is Bluck free?

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

### Do IRUM or Bluck have ads?

Neither IRUM nor Bluck shows ads.

### Which is updated more often, IRUM or Bluck?

IRUM ships an update every 2 weeks, and Bluck every 11 days. Most recently, IRUM was updated on October 7, 2026 and Bluck on September 30, 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.*