Comparison

GaugeRemote vs Appion Central

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

Head to head

Appion HVAC Mobile Tool App

Free

📊 Productivity

★ 2.814 ratingsView app →

About

GaugeRemote

Features

Read full description

Control the WiFi model of Retrotec's DM32 digital pressure gauge wirelessly with the GaugeRemote app on Apple devices! GaugeRemote features the same intuitively designed user interface as the DM32 gauge itself, eliminating a learning curve for using the application. Simply launch the app and select the DM32 to connect to. A fully mirrored interface will allow you to set speed or pressure, change devices and ranges, and receive results.

About

Appion Central

Manage your HVAC tools and connect to the web portal. This app provides a mobile interface for your Appion products.

Highlights

Manage Appion products
Interface with Appion Portal
Mobile tool management

Features

Read full description

Appion Central is designed to allow users to manage their Appion products as well as provide an interface with the Appion Portal web service.

Screenshots

GaugeRemote3 screens

Appion Central4 screens

Verdict

The call

The clearest difference is update cadence: Appion Central at every 5 weeks against GaugeRemote's every 3 months. GaugeRemote's advantage is iOS requirement (6.0 vs 13.0). 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

GaugeRemote ships an update every 3 months, Appion Central every 5 weeks. The most recent releases landed on May 16, 2026 and June 5, 2026 respectively.

Scorecard2 real differences · 8 level

GaugeRemote versus Appion Central: the parameters behind the verdict, then further details
Parameter	GaugeRemote	Appion Central
Price	Free	Free
Rating	—	2.8 (14 ratings) — better
Positive reviews	—	28.6% of reviews
Number of ratings	—	14 — better
Update frequency	Every 3 months	Every 5 weeks — better
Ads	No	No
In-app purchases	No	No
Monetization	—	Free
Devices	iPhone, iPod	iPhone, iPad, iPod — better
Requires iOS	6.0 — better	13.0
Further details — not scored
Size	5 MB	35 MB
Age rating	4+	4+
Developer	RETROTEC, INC.	Appion Inc.

In-app purchases

None

GaugeRemote

No in-app purchases

None

Appion Central

No in-app purchases

Questions

Is GaugeRemote free?

GaugeRemote is free to download, with no in-app purchases.

Is Appion Central free?

Appion Central is free to download, with no in-app purchases.

Do GaugeRemote or Appion Central have ads?

Neither GaugeRemote nor Appion Central shows ads.

Which is updated more often, GaugeRemote or Appion Central?

GaugeRemote ships an update every 3 months, and Appion Central every 5 weeks. Most recently, GaugeRemote was updated on May 16, 2026 and Appion Central on June 5, 2026.