Comparison

Greenvolt vs Warm U

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

Head to head

About

Greenvolt

Features

Read full description

Vencedora do prémio "Portugal Digital Awards '22" para "Best Digital Sustainability Award", a Plataforma Greenvolt Comunidades centraliza toda a informação sobre a sua energia num só lugar. Tendo acesso à nossa plataforma poderá: - Ver em tempo real a sua produção, os seus consumos e a sua origem - Conectar-se à sua comunidade de energia e conhecer o papel de cada membro como consumidor ou produtor - Visualizar os seus dados históricos de produção e consumo assim como a sua poupança - Aceder ás suas faturas e todos os documentos partilhados pela empresa Greenvolt Comunidades Adira já!

About

Warm U

Features

Read full description

Warm U is a Bluetooth control app that can control devices through Bluetooth. The app mainly provides heating and timing services. Users can easily control the heating temperature, timing and other functions of insoles to adapt to different environments and needs. This insole is particularly suitable for cold weather or situations that require prolonged standing or walking.

Screenshots

Greenvolt4 screens

Warm U3 screens

Verdict

The call

The clearest difference is update cadence: Warm U at weekly against Greenvolt's every 5 weeks. Warm U also leads on iOS requirement (12.0 vs 15.1). 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

Greenvolt ships an update every 5 weeks, Warm U weekly. The most recent releases landed on September 22, 2026 and September 10, 2026 respectively.

Scorecard2 real differences · 4 level

Greenvolt versus Warm U: the parameters behind the verdict, then further details
Parameter	Greenvolt	Warm U
Price	Free	Free
Update frequency	Every 5 weeks	Weekly — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod — better	iPhone, iPod
Requires iOS	15.1	12.0 — better
Further details — not scored
Size	34 MB	19 MB
Age rating	4+	17+
Developer	Greenvolt	海洋刘

In-app purchases

None

Greenvolt

No in-app purchases

None

Warm U

No in-app purchases

Questions

Is Greenvolt free?

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

Is Warm U free?

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

Do Greenvolt or Warm U have ads?

Neither Greenvolt nor Warm U shows ads.

Which is updated more often, Greenvolt or Warm U?

Greenvolt ships an update every 5 weeks, and Warm U weekly. Most recently, Greenvolt was updated on September 22, 2026 and Warm U on September 10, 2026.