Comparison

Blueterminal vs Sensor Playground

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Blueterminal

This app allows developers to test Bluetooth connections by acting as either a peripheral or a central device. It offers features to save frequently used devices and commands for convenience during testing.

Highlights
  • Bluetooth peripheral testing
  • Bluetooth central device testing
  • Save devices
  • Save commands
  • Peripheral and central modes
Features
Read full description

With Blueterminal, you will be able to test how you app's Bluetooth connection works by using this app as a peripheral. You can also use this terminal as the main app in order to test how your own Bluetooth device is working. You can save some devices and commands you commonly use so you don't have to enter their information all the time. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.notion.so/blueterminal/Privacy-Policy-993fb70db3334707bc5edaa4ec79893a

About

Sensor Playground

Features
Read full description

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.

Screenshots

Blueterminal4 screens
Sensor Playground4 screens

Verdict

The call

The clearest difference is update cadence: Sensor Playground at every 3 days against Blueterminal's every 6 months. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Blueterminal sells 2 in-app purchases, starting at $1.99 per month and Sensor Playground sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Blueterminal ships an update every 6 months, Sensor Playground every 3 days. The most recent releases landed on October 5, 2026 and September 26, 2026 respectively.

Scorecard1 real difference · 9 level
Blueterminal versus Sensor Playground: the parameters behind the verdict, then further details
ParameterBlueterminalSensor Playground
PriceFreeFree
Rating1.0 (4 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 6 monthsEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.015.0
Further details — not scored
Size16 MB26 MB
Age rating4+12+
DeveloperMaria Alejandra WetschPeter Sauer

In-app purchases

2 purchases

Blueterminal

Subscriptions2
  • Premium access$1.991 Month
  • Premium access3 Days trial$9.991 Year
1 purchases

Sensor Playground

One-time1
  • Licence$0.99

Questions

Is Blueterminal free?
Blueterminal is free to download, with in-app purchases available.
Is Sensor Playground free?
Sensor Playground is free to download, with in-app purchases available.
Do Blueterminal or Sensor Playground have ads?
Neither Blueterminal nor Sensor Playground shows ads.
Which is updated more often, Blueterminal or Sensor Playground?
Blueterminal ships an update every 6 months, and Sensor Playground every 3 days. Most recently, Blueterminal was updated on October 5, 2026 and Sensor Playground on September 26, 2026.

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