Comparison

ST BLE Toolbox vs Helios EOS Timer

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

Head to head

About

ST BLE Toolbox

Features

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The ST BLE Toolbox is a user-friendly application to interact and debug ST Bluetooth Low Energy (BLE) devices. Upon launch, the app scans for BLE devices. For each device found it is possible to display advertisements and connect to it. The key features are: - Discovery peripherals - Show output of standard profiles - Show peripheral services and characteristics - Perform Read, write and notification interactions with peripherals

About

Helios EOS Timer

Features

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The Helios EOS Timer app is a comprehensive tool to configure the functionality of the EOS Timer. Examples include setting the functional mode, batch frequency, and PPM. Live data is also displayed in the app such as temperature, flow rate, and solar panel volts and amps.

Screenshots

ST BLE Toolbox4 screens

Helios EOS Timer3 screens

Verdict

The call

The clearest difference is update cadence: Helios EOS Timer at every 5 weeks against ST BLE Toolbox's every 6 months. ST BLE Toolbox's advantage is iOS requirement (15.0 vs 18.0). 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

ST BLE Toolbox ships an update every 6 months, Helios EOS Timer every 5 weeks. The most recent releases landed on October 7, 2026 and September 21, 2026 respectively.

Scorecard2 real differences · 4 level

ST BLE Toolbox versus Helios EOS Timer: the parameters behind the verdict, then further details
Parameter	ST BLE Toolbox	Helios EOS Timer
Price	Free	Free
Update frequency	Every 6 months	Every 5 weeks — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPod — better	iPhone
Requires iOS	15.0 — better	18.0
Further details — not scored
Size	16 MB	4 MB
Age rating	4+	4+
Developer	STMicroelectronics	Valormill

In-app purchases

None

ST BLE Toolbox

No in-app purchases

None

Helios EOS Timer

No in-app purchases

Questions

Is ST BLE Toolbox free?

ST BLE Toolbox is free to download, with no in-app purchases.

Is Helios EOS Timer free?

Helios EOS Timer is free to download, with no in-app purchases.

Do ST BLE Toolbox or Helios EOS Timer have ads?

Neither ST BLE Toolbox nor Helios EOS Timer shows ads.

Which is updated more often, ST BLE Toolbox or Helios EOS Timer?

ST BLE Toolbox ships an update every 6 months, and Helios EOS Timer every 5 weeks. Most recently, ST BLE Toolbox was updated on October 7, 2026 and Helios EOS Timer on September 21, 2026.