Comparison

BLE ToolBox vs SyncKing

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

Head to head
About

BLE ToolBox

This utility app facilitates the development of Bluetooth 4.0 Low Energy accessories. It offers a user-friendly interface for discovering, connecting to, and managing LE devices, supporting various standard and special BLE services for data transfer and remote control.

Highlights
  • Discover and connect to BT4.0 LE devices
  • Support for standard LE services (HRP, HTP, BLP, GLP, FMP, CSCP)
  • Special BLE services (SPS, Remote, OTA)
  • User-friendly interface for device management
  • Over-the-air firmware updates
Features
Read full description

BLE ToolBox is the right tool for developing BT4.0 LE accessories. BLE ToolBox supports various standard LE Services/Profiles and special service for data transfer and remote control. BLE ToolBox provide an user friendly interface to  searching the BT4.0 LE devices with dedicated BT4.0 LE service, connect/disconnect to the device, get the connected device information and service data. Standard BLE services supported : - HRP, Heart Rate Profile. - HTP, Health Thermometer Profile. - BLP, Blood Pressure Profile. - GLP, Glucose Profile. - FMP, Find Me profile. - CSCP, Cycling Speed & Cadence Profile. Special BLE services supported : - SPS, Serial Port Service, setup serial port connection between iOS and BT4.0 LE accessories. - Remote, Remote Control Service. - OTA, Over the Air Technology, update is the wireless delivery of new software, firmware or other data to mobile devices. Note : BLE ToolBox can only work on iOS devices support BT4.0 LE, like iPhone4S or new iPad.

About

SyncKing

Create and host interactive second screen experiences for live streams or local multiplayer games. Customize with widgets like images, scoreboards, and status updates for real-time audience engagement. Requires a WiFi or cellular connection for both host and viewer.

Highlights
  • Host custom second screen experiences
  • Real-time widget updates
  • Scoreboard display
  • Status sharing
  • Audience notifications
  • Connect via 4-digit code
Features
Read full description

Host your own second screen experience filled with your own widgets. SyncKing is especially useful for live streams - be more engaging with your viewers to improve your channel interactivity. Not only that but is useful for local play whether you are at a pub, at home playing a quiz with your friends.. The options are limitless on how you can use SyncKing.  Enable widgets to your liking. Show images, put up a scoreboard, share statuses, send your audience notifications and many other features in REAL-TIME. A valid connection to WiFi or Cellular is required to work for both the 'Host' and the 'Viewer'. Just enter the unique code 4-digit code to connect to the correct host.

Screenshots

BLE ToolBox4 screens
SyncKing2 screens

Verdict

The call

The clearest difference is update cadence: SyncKing at every 2 months against BLE ToolBox's every 19 months. SyncKing also leads on ratings volume (11 vs 3) and iOS requirement (9.0 vs 15.0). BLE ToolBox's advantage is review sentiment (100% vs 75%). On price, rating, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

SyncKing holds the better App Store score, 3.9 against 3.7. Both are backed by a comparable volume of ratings — 3 and 11 respectively. Written reviews complicate that: 100% of BLE ToolBox's written reviews are positive against 75% of SyncKing's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

BLE ToolBox ships an update every 19 months, SyncKing every 2 months. The most recent releases landed on July 4, 2026 and June 11, 2026 respectively.

Scorecard4 real differences · 6 level
BLE ToolBox versus SyncKing: the parameters behind the verdict, then further details
ParameterBLE ToolBoxSyncKing
PriceFreeFree
Rating3.7 (3 ratings)3.9 (11 ratings) — better
Positive reviews100.0% of reviews — better75.0% of reviews
Number of ratings311 — better
Update frequencyEvery 19 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.09.0 — better
Further details — not scored
Size3 MB57 MB
Age rating4+4+
DeveloperEnzytek Technology, Inc.Ashley Richards

Customer experience

BLE ToolBox

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

SyncKing

All ratings11 ratings
Positive72.7%
Neutral0.0%
Negative27.3%
Written reviews8 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

In-app purchases

None

BLE ToolBox

No in-app purchases

None

SyncKing

No in-app purchases

Questions

Is BLE ToolBox free?
BLE ToolBox is free to download, with no in-app purchases.
Is SyncKing free?
SyncKing is free to download, with no in-app purchases.
Which has better reviews, BLE ToolBox or SyncKing?
SyncKing is rated higher. BLE ToolBox averages 3.7 out of 5 from 3 ratings, while SyncKing averages 3.9 from 11 ratings.
Do BLE ToolBox or SyncKing have ads?
Neither BLE ToolBox nor SyncKing shows ads.
Which is updated more often, BLE ToolBox or SyncKing?
BLE ToolBox ships an update every 19 months, and SyncKing every 2 months. Most recently, BLE ToolBox was updated on July 4, 2026 and SyncKing on June 11, 2026.

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