Comparison

Blue Switch vs GázPro

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

Head to head
About

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.

Highlights
  • 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
Features
Read 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.

About

GázPro

Features
Read full description

GázPro is the mobile companion for field service technicians. Manage customers, site visits, stock and documents in a single app, whether you work on gas, heating, air conditioning, ventilation or heat pumps. SUBSCRIPTION REQUIRED Using the app requires a paid GázPro Pro subscription, billed monthly and renewing automatically. Every feature listed below is part of the subscription and is not available without it. A JOB SHEET THAT FITS YOUR TRADE The visit job sheet is customisable: alongside the shared core fields you can add your own, so it matches exactly what your trade requires. An optional gas combustion measurement block is available. MAIN FEATURES - Customer records: contact details, address, property information and on-site appliances (brand, model, serial number, year of installation, warranty). - Calendar and daily plan: schedule visits, follow today's jobs and the ones still pending. - Visit management: statuses (scheduled, in progress, on site, completed) and rescheduling reminders. - Job sheet PDF: create a PDF from the job sheet in a few taps, save it to Files and share it with the customer. - Stock: track van and warehouse stock, parts to order and parts already ordered. - Files and photos: documents and on-site pictures in one place. ANYWHERE, ANYTIME The clean, uncluttered interface is built for the field: fast, readable, no unnecessary steps. Your data syncs to a secure cloud, so you can reach it from several devices. WHO IT IS FOR Independent technicians and small service teams who want to run their day paperless and organised. SUBSCRIPTION AND TERMS GázPro Pro monthly subscription. The price is shown in your local currency on the subscription screen before you buy. Every feature of the app is part of the subscription. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period. Your Apple ID account is charged when the purchase is confirmed and on each renewal. You can manage or cancel the subscription at any time in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://gazpro.hu/policies/privacy-policy

Screenshots

Blue Switch4 screens
GázPro4 screens

Verdict

The call

The clearest difference is ads: GázPro at none against Blue Switch's shown. GázPro also leads on update cadence (daily vs every 3 months) and iOS requirement (15.1 vs 18.0). On price, 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. Blue Switch sells 1 one-off in-app purchase and GázPro sells 1 in-app purchase, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Blue Switch ships an update every 3 months, GázPro daily. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 7 level
Blue Switch versus GázPro: the parameters behind the verdict, then further details
ParameterBlue SwitchGázPro
PriceFreeFree
Rating3.8 (43 ratings) — better—
Positive reviews16.7% of reviews—
Number of ratings43 — better—
Update frequencyEvery 3 monthsDaily — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.1 — better
Further details — not scored
Size39 MB46 MB
Age rating4+4+
DeveloperVitalij SchaeferPeter Plesoczki

In-app purchases

1 purchases

Blue Switch

One-time1
  • Remove Ads$17.99
1 purchases

GázPro

Subscriptions1
  • Gazpro pro1 Month trial$8.991 Month

Questions

Is Blue Switch free?
Blue Switch is free to download, with in-app purchases available.
Is GázPro free?
GázPro is free to download, with in-app purchases available.
Do Blue Switch or GázPro have ads?
Blue Switch shows ads; GázPro does not.
Which is updated more often, Blue Switch or GázPro?
Blue Switch ships an update every 3 months, and GázPro daily. Most recently, Blue Switch was updated on November 6, 2026 and GázPro on November 5, 2026.

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