Comparison

LightBlue® vs Whats Due Soon

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

Head to head
About

LightBlue®

This app allows users to interact with Bluetooth Low Energy devices. It supports scanning for, connecting to, and analyzing BLE peripherals, as well as simulating your own BLE devices. It's a comprehensive tool for developers and enthusiasts working with BLE technology.

Highlights
  • Scan and discover BLE peripherals
  • Connect and view device profiles
  • Read and write characteristics
  • Subscribe to notifications
  • Create and advertise virtual BLE devices
  • Clone peripheral profiles
  • Log and share BLE events
Features
Read full description

LightBlue® by Punch Through® Your ultimate BLE debugging and development toolkit. Trusted by BLE developers and engineers since 2012 to scan, inspect, and troubleshoot Bluetooth Low Energy devices with precision. Scan For Peripherals  Discover, connect, and interact with nearby BLE devices. Quickly view advertising peripherals, sort by signal strength (RSSI), and connect with a single tap. Once connected, explore the device's advertisement data, services, and characteristics. Isolate SDK Issues  Simplify debugging by pinpointing issues in your BLE SDKs. LightBlue lets you isolate your app's business logic and focus on core tasks like connecting, scanning, reading, writing, and receiving notifications, built on years of BLE development experience and platform best practices. Mimic Your Devices  Prototype your application by creating virtual BLE peripherals. Build a profile from scratch or clone an advertising peripheral to mimic your product's functionality, even before your own firmware is ready. Key features: - Scan and discover BLE peripherals nearby - Browse services and characteristics in detail - Read, write, and subscribe to notifications and indications - Send data from notifications to AWS IoT or Adafruit IO via Cloud Connect - Write to characteristics in Hex, Octal, Binary, Decimal, or ASCII - Clone peripheral profiles or build your own from scratch - Advertise as a custom peripheral to simulate your device - Thoroughly log and share BLE events - Available on iPhone, iPad, Mac, and Android LightBlue started in 2012 as an internal tool. Punch Through built it to test and debug BLE devices while working on client projects. It worked well, so we shared it with the community. We've kept it free ever since. Today, LightBlue is used by solo developers and engineering teams alike, including inside some of the world's most respected tech and device companies.

About

Whats Due Soon

Read full description

Whats Due Soon is a clean countdown for deadlines, bills, renewals, due dates, trips, and important calendar dates. Open the app and see what needs attention soon. Add a due date, choose whether time matters, and keep the list focused on the next thing coming up. Why it helps: - Fast countdown list for dates and deadlines - Time-aware or date-only deadlines - Clear visual priority for what is coming up - Local-first storage with no account - One clear purchase, no subscription Built for people who want a simple answer to: what is due soon?

Screenshots

LightBlue®4 screens
Whats Due Soon3 screens

Verdict

The call

The clearest difference is price: LightBlue® at Free against Whats Due Soon's $0.99. LightBlue® also leads on device support (3 vs 1). On update cadence, ads, in-app purchases and iOS requirement 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

LightBlue® is free to download; Whats Due Soon costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

LightBlue® ships an update every 3 weeks, Whats Due Soon monthly. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 8 level
LightBlue® versus Whats Due Soon: the parameters behind the verdict, then further details
ParameterLightBlue®Whats Due Soon
PriceFree — better$0.99
Rating4.4 (942 ratings) — better—
Positive reviews66.2% of reviews—
Number of ratings942 — better—
Update frequencyEvery 3 weeks — betterMonthly
AdsNoNo
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPad, Mac — betteriPhone
Requires iOS16.4 — better17.0
Further details — not scored
Size22 MB2 MB
Age rating4+4+
DeveloperPunch ThroughMyworkingmemory LLC

Bugs and requests

LightBlue®

Reported bugs

3 issues
  • Crashes after updates
  • Fails to connect Apple Pencil
  • Doesn't detect all nearby devices

Requested features

3 requests
  • Ability to manually name devices
  • More precise location tracking
  • Integration with Siri/Shortcuts

Whats Due Soon

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

LightBlue®

No in-app purchases

None

Whats Due Soon

No in-app purchases

Questions

Is LightBlue® free?
LightBlue® is free to download, with no in-app purchases.
Is Whats Due Soon free?
Whats Due Soon costs $0.99, with no in-app purchases.
Do LightBlue® or Whats Due Soon have ads?
Neither LightBlue® nor Whats Due Soon shows ads.
Which is updated more often, LightBlue® or Whats Due Soon?
LightBlue® ships an update every 3 weeks, and Whats Due Soon monthly. Most recently, LightBlue® was updated on October 26, 2026 and Whats Due Soon on October 25, 2026.

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