Comparison

VARTA.install vs RED Bell

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

Head to head

VARTA installer app

About

VARTA.install

Features

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VARTA.install is the official app for commissioning, service and maintenance of VARTA energy storage systems. With the app, certified electricians can quickly and efficiently commission the new VARTA complete system, consisting of the VARTA.wall battery storage system, the VARTA.hybrid inverter and the VARTA.energymeter. The guided commissioning process is supported by the hotspot capability of the components and the simple scanning of the attached QR codes. Commissioning the VARTA.wall in slave mode remains possible, for example in combination with third-party inverters. In addition to commissioning, VARTA.install also supports service and maintenance tasks. You get an overview of your installed systems and have the most important information at hand in service cases. VARTA.install is the ideal companion for VARTA energy storage systems and enables smooth digital handling of installation, service and maintenance.

About

RED Bell

Features

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RED Bell ist ein NFC-Bildübertragungstool. Es ermöglicht NFC-fähigen Mobiltelefonen, sich einfach durch Annäherung an elektronische Tags zu verbinden. Dies ermöglicht die Anpassung von angezeigtem Text und Bildern auf den elektronischen Tags. Sie können den angezeigten Inhalt auf den elektronischen Tags bei Bedarf ändern.

Screenshots

VARTA.install4 screens

RED Bell2 screens

Verdict

The call

The clearest difference is update cadence: VARTA.install at every 2 months against RED Bell's every 8 months. RED Bell's advantage is iOS requirement (13.0 vs 16.0). 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

VARTA.install ships an update every 2 months, RED Bell every 8 months. The most recent releases landed on September 8, 2026 and October 6, 2026 respectively.

Scorecard2 real differences · 4 level

VARTA.install versus RED Bell: the parameters behind the verdict, then further details
Parameter	VARTA.install	RED Bell
Price	Free	Free
Update frequency	Every 2 months — better	Every 8 months
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad	iPhone, iPod
Requires iOS	16.0	13.0 — better
Further details — not scored
Size	85 MB	55 MB
Age rating	4+	17+
Developer	VARTA Storage GmbH	SYSTEC INTELLIGENT TECHNOLOGY (TIANJIN) CO., LTD.

In-app purchases

None

VARTA.install

No in-app purchases

None

RED Bell

No in-app purchases

Questions

Is VARTA.install free?

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

Is RED Bell free?

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

Do VARTA.install or RED Bell have ads?

Neither VARTA.install nor RED Bell shows ads.

Which is updated more often, VARTA.install or RED Bell?

VARTA.install ships an update every 2 months, and RED Bell every 8 months. Most recently, VARTA.install was updated on September 8, 2026 and RED Bell on October 6, 2026.