# iSPHINX vs ESP BOX

iSPHINX and ESP BOX are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

iSPHINX ships an update every 14 months, ESP BOX every 16 months. The most recent releases landed on September 17, 2026 and August 29, 2026 respectively.

## The numbers

| Metric | iSPHINX | ESP BOX |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 14 months** | Every 16 months |
| Size | 5 MB | 31 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SHENZHEN KEYKING TECHNOLOGY CO.,LTD.](https://appshunter.io/developer/705079409) | [ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD.](https://appshunter.io/developer/1071176699) |

## What reviewers say

### iSPHINX

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

**Features:** macOS Compatibility

**In-app purchases:** none


### ESP BOX

[App page](https://appshunter.io/ios/app/esp-box/id1613137716)

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

**In-app purchases:** none


## Frequently asked questions

### Is iSPHINX free?

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

### Is ESP BOX free?

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

### Do iSPHINX or ESP BOX have ads?

Neither iSPHINX nor ESP BOX shows ads.

### Which is updated more often, iSPHINX or ESP BOX?

iSPHINX ships an update every 14 months, and ESP BOX every 16 months. Most recently, iSPHINX was updated on September 17, 2026 and ESP BOX on August 29, 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.*