Comparison

VG Link 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

VG Link

Read full description

The VG Link Mobile Application connects and control the CPS Products line of BlackMax Wireless Vacrometer. The VG200W is a precision digital vacuum gauge for evacuating refrigerant systems and heat pumps, obtaining vacuum data, analyzing baseline pressure or during pumpdowns.

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

VG Link2 screens

Appion Central4 screens

Verdict

The call

The clearest difference is iOS requirement: VG Link at 9.0 against Appion Central's 13.0. On price, update cadence, ads and in-app purchases 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

VG Link ships an update every 2 months, Appion Central every 5 weeks. The most recent releases landed on September 22, 2026 and June 5, 2026 respectively.

Scorecard1 real difference · 9 level

VG Link versus Appion Central: the parameters behind the verdict, then further details
Parameter	VG Link	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 2 months	Every 5 weeks — better
Ads	No	No
In-app purchases	No	No
Monetization	—	Free
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	9.0 — better	13.0
Further details — not scored
Size	22 MB	35 MB
Age rating	4+	4+
Developer	CPS Products, Inc.	Appion Inc.

In-app purchases

None

VG Link

No in-app purchases

None

Appion Central

No in-app purchases

Questions

Is VG Link free?

VG Link 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 VG Link or Appion Central have ads?

Neither VG Link nor Appion Central shows ads.

Which is updated more often, VG Link or Appion Central?

VG Link ships an update every 2 months, and Appion Central every 5 weeks. Most recently, VG Link was updated on September 22, 2026 and Appion Central on June 5, 2026.