# IdematLightLCA vs Lumize

The clearest difference is in-app purchases: IdematLightLCA at none against Lumize's 1. IdematLightLCA also leads on device support (3 vs 1). Lumize's advantage is update cadence (every 4 days vs every 2 months). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Lumize sells 1 in-app purchase, starting at $4.99 per month. IdematLightLCA asks for nothing beyond the download.

IdematLightLCA ships an update every 2 months, Lumize every 4 days. The most recent releases landed on October 13, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | IdematLightLCA | Lumize |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Size | 27 MB | 82 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [joost vogtlander](https://appshunter.io/developer/1117266085) | [Lumize](https://appshunter.io/developer/1670217279) |

## What reviewers say

### IdematLightLCA

[App page](https://appshunter.io/ios/app/idematlightlca/id1187842654)

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

**In-app purchases:** none


### Lumize

[App page](https://appshunter.io/ios/app/lumize-learn-and-remember/id1670217277)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lumize Gold | $4.99 | per month |


## Frequently asked questions

### Is IdematLightLCA free?

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

### Is Lumize free?

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

### Do IdematLightLCA or Lumize have ads?

Neither IdematLightLCA nor Lumize shows ads.

### Which is updated more often, IdematLightLCA or Lumize?

IdematLightLCA ships an update every 2 months, and Lumize every 4 days. Most recently, IdematLightLCA was updated on October 13, 2026 and Lumize on October 18, 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.*