GemTot SDK vs Bluetooth Sleuth
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GemTot SDK
This utility app enables users to configure, test, and demonstrate GemTot Bluetooth beacons. It showcases proximity detection, distance calculation using RSSI, and triggering local notifications or Apple Wallet content when entering or exiting beacon regions.
- Beacon configuration
- Distance demonstration
- Proximity detection
- RSSI and power calibration
- Lock screen notifications
- Apple Wallet integration demo
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This utility app allows owners of GemTot bluetooth beacons to easily configure, test and demonstrate them. Distance demonstration: Demonstrates how an app is aware of a beacon's relative proximity when moving closer or further away from a beacon source and how the RSSI and power calibration of the beacon can be used to calculate a crude distance to the beacon source. Proximity demonstration: Demonstrates how the device's proximity to the beacon can trigger 3 different states (immediate, near and far), also shows how an app can respond to the event of no longer being able to see a beacon. Lock screen demonstration: Demonstrates how entering or exiting a beacon region can trigger a local notification and how a notification could be used to deliver content to Apple Wallet. This demo requires that background location monitoring and local notifications are enabled. Please note that continued use of GPS running in the background can dramatically decrease battery life. This app acts as a tool to demonstrate the capabilities of iBeacon. To save battery life, location permissions should be disabled when the app is not in use.
Bluetooth Sleuth
This utility allows users to deeply interact with their device's Bluetooth capabilities. It supports scanning for peripherals, advertising custom services, broadcasting and ranging iBeacons, and searching a comprehensive Bluetooth database.
- Configure custom Bluetooth advertisements
- Scan for specific or all advertising devices
- Connect to and browse peripheral services
- Broadcast and range iBeacons
- Search Bluetooth assigned numbers database
- Monitor RSSI values with graphing
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Bluetooth Sleuth is meant to be a well rounded app for interacting with your iOS or supported macOS device's Bluetooth functionality. This includes advertising and scanning for peripherals, as well as broadcasting, monitoring, and ranging iBeacons. The following covers some of the features included in Bluetooth Sleuth: [ADVERTISE] - Ability to configure an advertisement with your device - Create custom services, with their own characteristics and descriptors to advertise - Automatically saves custom services for later reuse [SCAN] - Ability to scan for all advertising devices within range - Ability to scan for specific advertisements that contain the provided CoreBluetooth UUID - Displays all peripherals, sorted by RSSI, with the ability to connect to devices that are open to connections - Browse a peripheral's services, characteristics, and descriptors - Monitor recent peripheral RSSI values with included graphing tools - Ability to automatically reconnect to a previously connected peripheral - Filter results to require names, ability to connect or minimum RSSI value [SEARCH] - Search through over 5,000 records in the Bluetooth database of assigned numbers for companies, services, characteristics and other related values [BROADCAST] - Configure your device to act as an iBeacon by providing it with a UUID, and optional major and minor values [RANGE] - Observe for the presence of any iBeacons broadcasting with the values you provide - See device information for any iBeacons located - Monitor recent iBeacon RSSI values with included graphing tools [MONITOR] - Observe region updates for any iBeacons broadcasting with the values you provide
Screenshots
Verdict
The clearest difference is price: GemTot SDK at Free against Bluetooth Sleuth's $0.99. GemTot SDK also leads on iOS requirement (9.0 vs 16.0). Bluetooth Sleuth's advantage is rating (5.0 vs 1.0). On ratings volume, update cadence, ads and in-app purchases 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
GemTot SDK is free to download; Bluetooth Sleuth costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Bluetooth Sleuth holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
GemTot SDK ships an update every 3 months, Bluetooth Sleuth every 2 months. The most recent releases landed on October 1, 2026 and October 16, 2026 respectively.
| Parameter | GemTot SDK | Bluetooth Sleuth |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 1.0 (1 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 18 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | PassKit, Inc. | Sean McNeil |
Customer experience
GemTot SDK
Bluetooth Sleuth
In-app purchases
GemTot SDK
No in-app purchases
Bluetooth Sleuth
No in-app purchases
Questions
Is GemTot SDK free?
Is Bluetooth Sleuth free?
Which has better reviews, GemTot SDK or Bluetooth Sleuth?
Do GemTot SDK or Bluetooth Sleuth have ads?
Which is updated more often, GemTot SDK or Bluetooth Sleuth?
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