Comparison

Brel Solar vs Adlar

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

Head to head

About

Brel Solar

Features

Read full description

Functies: -Duidelijke instructies voorafgaand de meting -Direct overzicht van de gemeten waarden -Visuele meter die aangeeft of de plek voldoende zonlicht krijgt Privacy: https://cdn.bluenotion.nl/301fdd14de4524f85b59260ddfc20a5e16b9c2dc9f2e7ac9b41921523b45b171/Privacy_verklaring_Brel_Augustus_16th_2021.pdf

About

Adlar

Features

Read full description

This is an app specially developed for your heat pump. With this app you get full control and insight into the energy consumption and performance of your heat pump system. You can create your own dashboard, choosing which graphs and statistics you find important. In addition, the app also offers transparency in the purchasing process. You can follow step by step what the possibilities are, which options and how the quotation and installation process proceeds. This not only makes it easier to make a well-considered choice, but also gives you confidence and clarity from start to finish

Screenshots

Brel Solar3 screens

Adlar4 screens

Verdict

The call

The clearest difference is update cadence: Adlar at every 10 days against Brel Solar's every 2 months. Brel Solar's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 16.4). On price, 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

Brel Solar ships an update every 2 months, Adlar every 10 days. The most recent releases landed on October 4, 2026 and October 13, 2026 respectively.

Scorecard3 real differences · 3 level

Brel Solar versus Adlar: the parameters behind the verdict, then further details
Parameter	Brel Solar	Adlar
Price	Free	Free
Update frequency	Every 2 months	Every 10 days — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod — better	iPhone
Requires iOS	12.0 — better	16.4
Further details — not scored
Size	24 MB	61 MB
Age rating	4+	4+
Developer	BREL NEDERLAND BV	Adlar Castra

In-app purchases

None

Brel Solar

No in-app purchases

None

Adlar

No in-app purchases

Questions

Is Brel Solar free?

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

Is Adlar free?

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

Do Brel Solar or Adlar have ads?

Neither Brel Solar nor Adlar shows ads.

Which is updated more often, Brel Solar or Adlar?

Brel Solar ships an update every 2 months, and Adlar every 10 days. Most recently, Brel Solar was updated on October 4, 2026 and Adlar on October 13, 2026.