IOBluetoothLE vs DSD TECH SWITCH
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
IOBluetoothLE
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This allows control of the Devantech BT004BLE module which has 4 16 amp relays. It allows you to configure the modules name and password, as well as setting individual names and pulse times for each relay. https://www.robot-electronics.co.uk/bt004ble.html
DSD TECH SWITCH
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This app is only used for relay control modules of the DSD TECH brand.
Screenshots
Verdict
The clearest difference is update cadence: DSD TECH SWITCH at every 29 months against IOBluetoothLE's every 67 months. DSD TECH SWITCH also leads on iOS requirement (9.3 vs 15.5). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
IOBluetoothLE ships an update every 67 months, DSD TECH SWITCH every 29 months. The most recent releases landed on September 28, 2026 and September 20, 2026 respectively.
| Parameter | IOBluetoothLE | DSD TECH SWITCH |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 67 months | Every 29 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.5 | 9.3 — better |
| Further details — not scored | ||
| Size | 1 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Devantech Ltd. | DongGuan DESHIDE TECHNOLOGY CO.,LTD |
In-app purchases
IOBluetoothLE
No in-app purchases
DSD TECH SWITCH
No in-app purchases
Questions
Is IOBluetoothLE free?
Is DSD TECH SWITCH free?
Do IOBluetoothLE or DSD TECH SWITCH have ads?
Which is updated more often, IOBluetoothLE or DSD TECH SWITCH?
Other comparisons
