# eiApp vs Syn

The clearest difference is update cadence: Syn at fortnightly against eiApp's every 6 weeks. eiApp's advantage is iOS requirement (11.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

eiApp ships an update every 6 weeks, Syn fortnightly. The most recent releases landed on October 1, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | eiApp | Syn |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | — | Free |
| Size | 67 MB | 43 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [E I ADVANCED DESENVOLVIMENTOS COMERCIO E SERVICOS EM INFORMATICA LTDA](https://appshunter.io/developer/1523340274) | [Syngular ID](https://appshunter.io/developer/1702701596) |

## What reviewers say

### eiApp

[App page](https://appshunter.io/ios/app/eiapp/id1523340272)

**Features:** macOS Compatibility

**In-app purchases:** none


### Syn

[App page](https://appshunter.io/ios/app/syn/id6461774561)

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

**In-app purchases:** none


## Frequently asked questions

### Is eiApp free?

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

### Is Syn free?

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

### Do eiApp or Syn have ads?

Neither eiApp nor Syn shows ads.

### Which is updated more often, eiApp or Syn?

eiApp ships an update every 6 weeks, and Syn fortnightly. Most recently, eiApp was updated on October 1, 2026 and Syn on September 30, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*