ClassApp vs Agenda Sirius
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ClassApp
This communication platform streamlines interactions between schools, parents, and students. It offers a modern, simple, and efficient way for everyone to stay connected.
- School-parent communication
- Student-teacher messaging
- Modern interface
- Efficient information sharing
- Simple to use
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A communication app that connects schools, parents and students in a modern, simple and efficient way.
Agenda Sirius
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Receba todas as informações escolares em seu celular. A Agenda Sirius é o aplicativo de comunicação escolar que te conecta à escola de seu filho, fazendo com que você esteja cada vez mais presente, ajudando-o a organizar sua rotina de estudos. Com nosso app, você consegue se comunicar com a escola de forma rápida e direta, além de receber todas as informações escolares em seu celular. Como funciona? A escola envia mensagens, comunicados, eventos, atividades, resumo diário, cardápio mensal, compartilha fotos dos alunos em suas atividades escolares, entre outras informações e você recebe tudo em seu celular em tempo real. Otimize seu tempo. receba e envie mensagens para a escola pelo App, fácil e rápido. Caso tenha alguma dúvida ou sugestão, nos envie um e-mail para pdsinformatica@pdsinformatica.com.br Siga nossas redes sociais e acesse nosso site:https://estrelasirius.com.br/
Screenshots
Verdict
ClassApp and Agenda Sirius are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
ClassApp ships an update every 3 weeks, Agenda Sirius every 5 weeks. The most recent releases landed on October 26, 2026 and October 20, 2026 respectively.
| Parameter | ClassApp | Agenda Sirius |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (1.3K ratings) — better | — |
| Positive reviews | 48.1% of reviews | — |
| Number of ratings | 1.3K — better | — |
| Update frequency | Every 3 weeks — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 80 MB | 200 MB |
| Age rating | 4+ | 9+ |
| Developer | ClassApp Sistemas Ltda ME | Pds Pereira de Souza Informatica Ltda. |
Bugs and requests
ClassApp
Reported bugs
3 issues- App crashing after update
- Login/registration issues
- Inability to send messages to multiple recipients
Requested features
5 requests- Ability to organize messages by priority
- Option to share messages via WhatsApp
- Ability to view camera feeds
- Improved image viewing experience
- Shared message access between parents
Agenda Sirius
Not enough reviews yet to summarise bugs or requests.
In-app purchases
ClassApp
No in-app purchases
Agenda Sirius
No in-app purchases
