# Sensor Playground — Live data from DIY sensors

> Live data from DIY sensors (iPhone/iPad app by Peter Sauer.)

- Source: https://appshunter.io/ios/app/sensor-playground/id6778514035 (this page in markdown: same URL + `.md`)
- Developer: [Peter Sauer](https://appshunter.io/developer/1789152060)
- Category: Developer Tools
- Price: Free with in-app purchases
- Age rating: 12+
- Requires: iOS 15.0 · 26 MB
- Languages: American English
- Released: 2026-08-18
- Data updated: 2026-08-25
- User reviews in markdown: https://appshunter.io/ios/app/sensor-playground/id6778514035/reviews.md

## What is Sensor Playground?

Sensor Playground turns your phone into a live dashboard for DIY sensor
nodes built on the ESP32 or a Raspberry Pi class single-board computer.

Flash the free companion firmware onto your board, wire up a supported
sensor, and the app finds the node automatically on your local network or
via Bluetooth LE — no cloud, no account, no registration. Readings appear
as clear cards and live charts, updated in real time.

CONTINUOUSLY GROWING
Development is ongoing: updates ship regularly, and support for new sensors
is added continuously. If your favourite sensor is not on the list yet,
chances are it will arrive in one of the next updates.

HIGHLIGHTS
• Automatic discovery of sensor nodes over Wi-Fi (LAN) and Bluetooth LE
• Live cards and charts for every measured quantity
• Air-quality rating derived from IAQ, CO₂ or eCO₂/TVOC readings
• Dedicated screens for gesture, distance and contact sensors
• Send bitmaps to an SSD1306 OLED display node
• Signal-strength badge for Bluetooth nodes
• °C/°F switch, English and German, screen-reader friendly
• Everything stays on your own network: TLS-encrypted and API-key
  protected — no cloud involved

SUPPORTED SENSORS (and counting)
• Environment & air quality: BME680, BME280, SCD30, SGP30, MCP9808, SHT31,
  SHT41, AHT10/AHT20, CozIR-A
• Light & optical: SI1145 (sunlight/UV), TCS34725 (color), analog light
  sensor
• Motion & orientation: IMU 10DOF, MPU6050, MMA7660
• Infrared temperature: MLX90615 (non-contact)
• Positioning: Air530 GNSS/GPS
• Event-driven: PAJ7620 gesture, VL53L0X laser distance, button, hall
  sensor, magnetic switch, PIR motion, vibration
• Display: SSD1306 OLED (128×64)

GOOD TO KNOW
• You need at least one sensor node: an ESP32 or a Raspberry Pi class board
  running the free, open companion firmware. Arduino sketches and Python
  scripts are available for every supported sensor.
• A built-in simulated sensor lets you explore the app before any hardware
  is connected.
• Scanning and discovery are free for all sensors. Data visualisation for a
  few selected sensors requires a one-time in-app licence purchase, which
  supports the ongoing development.

Whether you are a maker, a teacher, a student or simply curious about the
air in your room — Sensor Playground makes hardware experiments visible.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Licence | $0.99 | one-time |



## Version history (last 2 releases)

### 1.0.60 — 2026-08-21

More than 10 new sensors added.

### 1.0.48 — 2026-08-18

No release notes.

## More apps by Peter Sauer

- [Stoichiometric equations](https://appshunter.io/ios/app/stoichiometric-equations/id6740244756)
- [ESP32-Cam](https://appshunter.io/ios/app/esp32-cam/id6754187049)
- [DiashowDL](https://appshunter.io/ios/app/diashowdl/id6760623073)

All apps by Peter Sauer: https://appshunter.io/developer/1789152060

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-25.*