Comparison

NegaWATT vs Concretize

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

Head to head

About

NegaWATT

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Utilizando a estratégia cada vez mais popular da gamificação na educação, “NegaWATT: Menos é MAIS!” tem como objetivo o envolvimento das comunidades, especialmente a escolar, de forma inovadora, desafiante e empolgante, na consciência para a eficiência energética e as energias renováveis, através da gamificação na conquista de NegaWATTs. A Aplicação apresenta um conjunto de atividades e desafios temáticos diários com recurso a quizzes, jogos e tarefas voluntárias, que envolvam situações do dia-a-dia e respetivas escolhas. A realização das atividades e desafios permite a acumulação de pontos NegaWATTs. A medida “Negawatt: Menos é MAIS!” é financiada no âmbito do Plano de Promoção da Eficiência no Consumo de Energia, aprovado pela ERSE - Entidade Reguladora dos Serviços Energéticos.

About

Concretize

Features

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Seja bem-vindo(a)! O aplicativo Concretize oferece acesso a uma ferramenta de acompanhamento personalizado. Faça login com as suas credenciais e tenha acesso às aulas, de qualquer lugar do mundo, na palma da sua mão. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

NegaWATT4 screens

Concretize4 screens

Verdict

The call

The clearest difference is in-app purchases: NegaWATT at none against Concretize's 1. Concretize's advantage is update cadence (every 4 days vs every 2 weeks). On price, ads, device support and iOS requirement 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. Concretize sells 1 in-app purchase, starting at $199.99 per 3 months. NegaWATT asks for nothing beyond the download.

UpkeepUpdate frequency

NegaWATT ships an update every 2 weeks, Concretize every 4 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 4 level

NegaWATT versus Concretize: the parameters behind the verdict, then further details
Parameter	NegaWATT	Concretize
Price	Free	Free
Update frequency	Every 2 weeks	Every 4 days — better
Ads	No	No
In-app purchases	No — better	Yes
Devices	iPhone, iPod	iPhone, iPod
Requires iOS	15.0	15.0
Further details — not scored
Size	160 MB	15 MB
Age rating	4+	4+
Developer	Albatroz Digital, Lda.	Silhueta Magnifica Unipessoal LDA

In-app purchases

None

NegaWATT

No in-app purchases

1 purchases

Concretize

Subscriptions1

Concretize Trimestral$199.993 Months

Questions

Is NegaWATT free?

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

Is Concretize free?

Concretize is free to download, with in-app purchases available.

Do NegaWATT or Concretize have ads?

Neither NegaWATT nor Concretize shows ads.

Which is updated more often, NegaWATT or Concretize?

NegaWATT ships an update every 2 weeks, and Concretize every 4 days. Most recently, NegaWATT was updated on November 3, 2026 and Concretize on October 31, 2026.