# Code Tower vs Lumen

The clearest difference is in-app purchases: Code Tower at none against Lumen's 6. Code Tower also leads on ads (none vs shown). Lumen's advantage is update cadence (every 2 days vs monthly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Lumen sells 6 one-off in-app purchases. Code Tower asks for nothing beyond the download.

Code Tower ships an update monthly, Lumen every 2 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | Code Tower | Lumen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/lumen-color-merge/id6781567231/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 65 MB | 105 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Ementio IT Solutions FlexCo](https://appshunter.io/developer/1792817263) | [MATTHEW JACOB BUZZARD](https://appshunter.io/developer/6781567233) |

## What reviewers say

### Code Tower

[App page](https://appshunter.io/ios/app/code-tower/id6747756249)

**Features:** macOS Compatibility

**In-app purchases:** none


### Lumen

[App page](https://appshunter.io/ios/app/lumen-color-merge/id6781567231)

A minimalist color-matching puzzle game where you tap to merge colors, build score-boosting loops, and earn bonus time against the clock. Enjoy clean visuals and satisfying tactile feedback in quick, engaging sessions.

**Highlights:** Simple one-touch gameplay, Score-chasing loops, Earn bonus time with combos, Minimalist design, Quick play sessions, Game Center leaderboards

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pouch of Coins | $0.99 | one-time |
| Double Coins | $1.99 | one-time |
| Chest of Coins | $4.99 | one-time |
| Handful of Gems | $4.99 | one-time |
| Remove Ads | $4.99 | one-time |
| Starter Pack | $6.99 | one-time |


## Frequently asked questions

### Is Code Tower free?

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

### Is Lumen free?

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

### Do Code Tower or Lumen have ads?

Lumen shows ads; Code Tower does not.

### Which is updated more often, Code Tower or Lumen?

Code Tower ships an update monthly, and Lumen every 2 days. Most recently, Code Tower was updated on October 25, 2026 and Lumen on October 25, 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.*