# Sensor & Lighting Control vs Puppy Journal

The clearest difference is in-app purchases: Sensor & Lighting Control at none against Puppy Journal's 4. Sensor & Lighting Control also leads on ads (none vs shown) and device support (3 vs 1). Puppy Journal's advantage is update cadence (every 3 days vs every 2 weeks). On price there is nothing between them.

Both are free to download. Puppy Journal sells 4 one-off in-app purchases. Sensor & Lighting Control asks for nothing beyond the download.

Sensor & Lighting Control ships an update every 2 weeks, Puppy Journal every 3 days. The most recent releases landed on October 26, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Sensor & Lighting Control | Puppy Journal |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Every 3 days** |
| Size | 16 MB | 168 MB |
| Requires iOS | **9.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [HYTRONIK ELECTRONICS CO.,LTD](https://appshunter.io/developer/1383615292) | [Keitgen GmbH](https://appshunter.io/developer/416061212) |

## What reviewers say

### Sensor & Lighting Control

[App page](https://appshunter.io/ios/app/sensor-and-lighting-control/id1444257142)

**Features:** macOS Compatibility

**In-app purchases:** none


### Puppy Journal

[App page](https://appshunter.io/ios/app/puppy-journal/id6755651937)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Biscuit Treat | $0.99 | one-time |
| Tennis Ball | $2.99 | one-time |
| Roasted Knuckle | $4.99 | one-time |
| Remove Ads | $9.99 | one-time |


## Frequently asked questions

### Is Sensor & Lighting Control free?

Sensor & Lighting Control is free to download, with no in-app purchases.

### Is Puppy Journal free?

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

### Do Sensor & Lighting Control or Puppy Journal have ads?

Puppy Journal shows ads; Sensor & Lighting Control does not.

### Which is updated more often, Sensor & Lighting Control or Puppy Journal?

Sensor & Lighting Control ships an update every 2 weeks, and Puppy Journal every 3 days. Most recently, Sensor & Lighting Control was updated on October 26, 2026 and Puppy Journal on November 5, 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.*