DigitalSign Brasil vs CarM3
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DigitalSign Brasil
Digitally sign PDF documents with legal validity from anywhere, anytime. Easily transfer and use your digital certificates, and share signed documents instantly. Acquire a new digital certificate directly through the app.
- Digital PDF document signing
- Legal validity of signatures
- Cross-platform digital certificate transfer
- Instant document sharing
- In-app digital certificate acquisition
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Com a APP você pode assinar digitalmente documentos PDF com validade jurídica onde você estiver e a hora que quiser. Assine documentos recebidos diretamente pelo WhatsApp, Facebook Messanger, e-mails e muito mais. Compartilhe os documentos assinados instantaneamente com os seus contatos. A app DigitalSign Brasil permite a você transferir e utilizar os seus certificados digitais A1 multiplataforma do seu computador para seu smartfone ou tablet de forma super fácil. Se você ainda não possui um certificado digital da DigitalSign, não perca tempo! Instale agora e adquira o seu através da própria APP.
CarM3
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CARM3 is the ultimate solution for car lovers. Take full control of your garage, maintenance history, and automotive finances in a modern, easy-to-use app. Perfect for careful owners, collectors, and motorsport enthusiasts. Main Features: - My Digital Garage: Register your vehicles with a complete technical sheet (Brand, Model, Year, Fuel, Power, Chassis, and more). - Maintenance Management: Record all inspections, oil changes, tire replacements, and repairs. Track mileage and know exactly when the next service is due. - Financial Control: Organize Budgets, Work Orders, and Invoices. Know exactly how much you spend on parts and labor. - Dashboard: Quickly view the health status of your fleet. See which cars are up to date ("Good"), approaching service ("Due Soon"), or overdue ("Overdue"). - Complete History: Increase your vehicle’s resale value with a detailed and organized service history. Why use CARM3? - Clean and intuitive interface. - Support for multiple vehicles. - Detailed history of services and parts. - Document and expiration management. Download now and manage your car in the palm of your hand!
Screenshots
Verdict
The clearest difference is ads: DigitalSign Brasil at none against CarM3's shown. DigitalSign Brasil also leads on iOS requirement (9.0 vs 15.1). CarM3's advantage is update cadence (every 10 days vs every 2 months). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
DigitalSign Brasil ships an update every 2 months, CarM3 every 10 days. The most recent releases landed on October 24, 2026 and October 5, 2026 respectively.
| Parameter | DigitalSign Brasil | CarM3 |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| Update frequency | Every 2 months | Every 10 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 23 MB | 64 MB |
| Age rating | 4+ | 17+ |
| Developer | DigitalSign | Alexandre Auler |
In-app purchases
DigitalSign Brasil
No in-app purchases
CarM3
No in-app purchases









