Comparison

e vs Syn

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

Head to head
About

e

Manage notarized digital certificates and electronically sign notarial acts directly from your device or computer. Contact a Notary Public to obtain your certificate and request various electronic notarial documents.

Highlights
  • Manage digital certificates
  • Sign electronic notarial acts
  • Request electronic deeds
  • Request electronic powers of attorney
  • Request electronic wills
  • Request electronic notarial minutes
Features
Read full description

Este aplicativo permite gerenciar certificados digitais notarizados e assinar atos notariais eletrônicos no próprio dispositivo ou no computador. Contate um Tabelionato de Notas de sua preferência para emitir seu certificado e solicitar escrituras, procurações, testamentos, atas notariais e outros atos eletrônicos. Aviso: A assinatura via app só é possível a partir da versão 15 do iOS.

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

e3 screens
Syn4 screens

Verdict

The call

The clearest difference is review sentiment: Syn at 69% against e's 8%. Syn also leads on rating (5.0 vs 3.0). e's advantage is ratings volume (49 vs 1) and update cadence (every 8 days vs every 2 weeks). 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.

ReceptionRating · Positive reviews · Number of ratings

Syn holds the better App Store score, 5.0 against 3.0. That said, the two scores are not equally well evidenced: e has 49 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 8% of e's written reviews are positive against 69% of Syn's.

UpkeepUpdate frequency

e ships an update every 8 days, Syn every 2 weeks. Both last shipped on October 16, 2026.

Scorecard4 real differences · 6 level
e versus Syn: the parameters behind the verdict, then further details
ParametereSyn
PriceFreeFree
Rating3.0 (49 ratings)5.0 (1 ratings) — better
Positive reviews8.2% of reviews69.2% of reviews — better
Number of ratings49 — better1
Update frequencyEvery 8 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.515.1 — better
Further details — not scored
Size77 MB43 MB
Age rating+4+4
DeveloperColegio Notarial do BrasilSyngular ID

Customer experience

e

All ratings49 ratings
Positive46.9%
Neutral4.1%
Negative49.0%
Written reviews98 reviews
Positive8.2%
Neutral3.1%
Negative88.8%

Syn

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews13 reviews
Positive69.2%
Neutral0.0%
Negative30.8%

In-app purchases

None

e

No in-app purchases

None

Syn

No in-app purchases

Questions

Is e free?
e is free to download, with no in-app purchases.
Is Syn free?
Syn is free to download, with no in-app purchases.
Which has better reviews, e or Syn?
Syn is rated higher. e averages 3.0 out of 5 from 49 ratings, while Syn averages 5.0 from 1 ratings.
Do e or Syn have ads?
Neither e nor Syn shows ads.
Which is updated more often, e or Syn?
e ships an update every 8 days, and Syn every 2 weeks. Most recently, e was updated on October 16, 2026 and Syn on October 16, 2026.

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