Blue Switch vs BLE SPP
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Blue Switch
Control 2, 4, or 8 channel Bluetooth BLE relay modules from your iPhone or iPad. Assign custom names to modules and individual relays for easy identification and management. Enhance security by changing the default password.
- Control 2, 4, or 8 channel relay modules
- Bluetooth BLE connectivity
- Assign custom module aliases
- Assign custom relay aliases
- Change default password for security
- Connect to multiple modules
Read full descriptionHide full description
This app allows you to control a 2, 4 or 8 Channel Relay Module Bluetooth BLE with your iPhone or iPad. To use this app, you need one of these three modules: "2 Channel Relay Module Bluetooth BLE" "4 Channel Relay Module Bluetooth BLE" "8 Channel Relay Module Bluetooth BLE" These modules can be ordered at many online shops. Please use a search engine to find a shop. This app can be connected with any number of modules. By entering an alias, the modules are marked clearly and can easily be assigned to a use area. Name the modules for example "Relay 1", "Relay 2", "Electronic lab project" or "Ambient Light". An alias can also be entered for each relay. The default password for these modules is usually "12345678". For more security, the app also allows you to change the password. The password must be eight digits long.
BLE SPP
Read full descriptionHide full description
Es gibt für Bluetooth Low Energy kein Standard Profile, welches die Übertragung von Daten wie z.B. mit dem Serial Port Profile beim klassischen Bluetooth unterstützt. Dies ist jetzt mit dem eigens hierfür entwickelten Lintech BLE SPP Profile möglich. Mit dieser App kann man eine serielle Datenverbindung über Bluetooth Low Energy zu Geräten aufbauen, die das LinTech SPP Profile unterstützen: - LinTech Bluetooth Low Energy RS232 Datenadapter - LinTech Bluetooth Low Energy USB Datenadapter - LinTech Bluetooth Low Energy SPP Testboard - LinTech BLE Module mit SPP Profile Die App kann Zeichen im ASCII/HEX Format, Kommandos oder einstellbare Byte-Blöcke zur Gegenstelle senden oder empfangen. Die ausgehenden Daten sind Schwarz, die eingehenden Daten sind in Magenta dargestellt. 1) Starten Sie die App und klicken Sie auf "Scan" um nach Lintech BLE SPP Geräten zu suchen 2) Wählen Sie aus der Liste das Gerät aus mit dem Sie sich verbinden möchten 3) Werden Sie aufgefordert sich mit dem Gerät zu koppeln, geben Sie den geforderten Passkey ein, da sonst keine Kommunikation möglich ist 4) Ist die Verbindung hergestellt, können Sie die Datenkommunikation testen Um die App sinnvoll nutzen zu können, ist es wichtig die Gegenstelle so zu verwenden, dass ankommende Daten auch gesehen werden. Sie können z.B. ein Terminal Programm verwenden, welches auf den Com-Port zugreift, an welchen das BLE SPP Gerät angeschlossen ist und so die Datenkommunikation verfolgen. Die App empfängt und versendet die Daten auch wenn Sie im Hintergrund läuft.
Screenshots
Verdict
The clearest difference is in-app purchases: BLE SPP at none against Blue Switch's 1. BLE SPP also leads on ads (none vs shown) and iOS requirement (12.2 vs 18.0). On price, update cadence 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. Blue Switch sells 1 one-off in-app purchase. BLE SPP asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 23, 2026 and September 10, 2026 respectively.
| Parameter | Blue Switch | BLE SPP |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (43 ratings) — better | — |
| Positive reviews | 16.7% of reviews | — |
| Number of ratings | 43 — better | — |
| Update frequency | Every 3 months | Every 3 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 12.2 — better |
| Further details — not scored | ||
| Size | 39 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | Vitalij Schaefer | LinTech |
In-app purchases
Blue Switch
- Remove Ads$17.99
BLE SPP
No in-app purchases
Questions
Is Blue Switch free?
Is BLE SPP free?
Do Blue Switch or BLE SPP have ads?
Which is updated more often, Blue Switch or BLE SPP?
Other comparisons















