Comparison

MobileID vs Syn

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

Head to head
About

MobileID

Securely authenticate yourself and sign electronic documents with legal validity using your digital certificate on mobile devices. This service enables strong identification and document signing directly from your smartphone or tablet.

Highlights
  • Strong user authentication
  • Electronic document signing
  • Legal validity
  • Mobile device integration
  • ICP-Brasil digital certificate support
Features
Read full description

O mobileID Certisign é um serviço de Identificação Forte que por meio do Certificado Digital ICP-Brasil permite a autenticação do usuário e a assinatura de documentos no meio eletrônico, diretamente de dispositivos móveis, com validade jurídica.

About

Syn

This app provides secure control over your cloud-based digital certificate. It ensures that only authorized operations, confirmed by your PIN, can be performed with your certificate. You can also use it to audit your account for security and authorized operations.

Highlights
  • Cloud digital certificate management
  • Exclusive control via mobile app
  • PIN-based authorization
  • Security audits
  • High-security storage (HSM)
  • Operation divergence cancellation
Read full description

O Syngular Autenticador é o app para dispositivos móveis utilizado para garantir o exclusivo controle do seu certificado digital instalado na nuvem. O Syngular Autenticador é a solução Syngular ID para uso de certificação digital na nuvem. Seu certificado digital é gerado e armazenado em equipamentos de alto nível de segurança (HSM - Hardware Security Module), similares aos utilizados por Autoridades Certificadoras para armazenar seus próprios certificados. E o controle exclusivo de utilização do certificado é feito através do Syngular Autenticador. Ao associar seu certificado na nuvem ao seu celular com o Syngular Autenticador, somente operações devidamente autorizadas no seu celular (confirmadas através de PIN) serão realizadas com seu certificado. Qualquer divergência entre o que foi autorizado por você e o que for solicitado, automaticamente cancela a realização da assinatura. Utilize ainda o Syngular Autenticador para realizar auditorias e confirmar, de forma independente, que a sua conta está segura e que somente foram realizadas operações autorizadas pelo seu celular.

Screenshots

MobileID4 screens
Syn4 screens

Verdict

The call

The clearest difference is review sentiment: Syn at 75% against MobileID's 0%. Syn also leads on update cadence (fortnightly vs every 4 months). MobileID's advantage is iOS requirement (11.0 vs 15.1). On price, ads, in-app purchases and monetization model 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

MobileID ships an update every 4 months, Syn fortnightly. The most recent releases landed on October 6, 2026 and September 30, 2026 respectively.

Scorecard3 real differences · 7 level
MobileID versus Syn: the parameters behind the verdict, then further details
ParameterMobileIDSyn
PriceFreeFree
Rating1.5 (15 ratings) — better—
Positive reviews0.0% of reviews75.0% of reviews — better
Number of ratings15 — better—
Update frequencyEvery 4 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better15.1
Further details — not scored
Size91 MB43 MB
Age rating4+4+
DeveloperCertisignSyngular ID

Customer experience

MobileID

All ratings15 ratings
Positive13.3%
Neutral0.0%
Negative86.7%
Written reviews57 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Syn

Written reviews12 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

In-app purchases

None

MobileID

No in-app purchases

None

Syn

No in-app purchases

Questions

Is MobileID free?
MobileID is free to download, with no in-app purchases.
Is Syn free?
Syn is free to download, with no in-app purchases.
Do MobileID or Syn have ads?
Neither MobileID nor Syn shows ads.
Which is updated more often, MobileID or Syn?
MobileID ships an update every 4 months, and Syn fortnightly. Most recently, MobileID was updated on October 6, 2026 and Syn on September 30, 2026.

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