# iSPHINX vs Lumi

The clearest difference is in-app purchases: iSPHINX at none against Lumi's 1. iSPHINX also leads on update cadence (every 14 months vs every 54 months) and iOS requirement (12.0 vs 16.6). On price, ads and device support there is nothing between them.

Both are free to download. Lumi sells 1 one-off in-app purchase. iSPHINX asks for nothing beyond the download.

iSPHINX ships an update every 14 months, Lumi every 54 months. The most recent releases landed on November 2, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | iSPHINX | Lumi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 14 months** | Every 54 months |
| Size | 5 MB | 2 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SHENZHEN KEYKING TECHNOLOGY CO.,LTD.](https://appshunter.io/developer/705079409) | [Kazumasa Matsushita](https://appshunter.io/developer/1569771331) |

## What reviewers say

### iSPHINX

[App page](https://appshunter.io/ios/app/isphinx/id1435025485)

**Features:** macOS Compatibility

**In-app purchases:** none


### Lumi

[App page](https://appshunter.io/ios/app/lumi-det/id1569771329)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support max 10 devices | $2.99 | one-time |


## Frequently asked questions

### Is iSPHINX free?

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

### Is Lumi free?

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

### Do iSPHINX or Lumi have ads?

Neither iSPHINX nor Lumi shows ads.

### Which is updated more often, iSPHINX or Lumi?

iSPHINX ships an update every 14 months, and Lumi every 54 months. Most recently, iSPHINX was updated on November 2, 2026 and Lumi on October 27, 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.*