# Tekelek Diagnostics vs ESP32 Control

The clearest difference is in-app purchases: Tekelek Diagnostics at none against ESP32 Control's 1. Tekelek Diagnostics also leads on iOS requirement (15 vs 17.6). ESP32 Control's advantage is update cadence (every 3 months vs every 10 months). On price, ads and device support there is nothing between them.

Both are free to download. ESP32 Control sells 1 one-off in-app purchase. Tekelek Diagnostics asks for nothing beyond the download.

Tekelek Diagnostics ships an update every 10 months, ESP32 Control every 3 months. The most recent releases landed on November 12, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Tekelek Diagnostics | ESP32 Control |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 months** |
| Size | 12 MB | 3 MB |
| Requires iOS | **15** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Rochester Sensors, LLC](https://appshunter.io/developer/1006999301) | [TRAVIS KIMANI CHRISTOPHER](https://appshunter.io/developer/1896028916) |

## What reviewers say

### Tekelek Diagnostics

[App page](https://appshunter.io/ios/app/tekelek-diagnostics/id1670926813)

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

**In-app purchases:** none


### ESP32 Control

[App page](https://appshunter.io/ios/app/esp32-control/id6765663755)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Unlock | $4.99 | one-time |


## Frequently asked questions

### Is Tekelek Diagnostics free?

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

### Is ESP32 Control free?

ESP32 Control is free to download, with in-app purchases available.

### Do Tekelek Diagnostics or ESP32 Control have ads?

Neither Tekelek Diagnostics nor ESP32 Control shows ads.

### Which is updated more often, Tekelek Diagnostics or ESP32 Control?

Tekelek Diagnostics ships an update every 10 months, and ESP32 Control every 3 months. Most recently, Tekelek Diagnostics was updated on November 12, 2026 and ESP32 Control on November 9, 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.*