# Athos Contabilidade vs Syn

The clearest difference is update cadence: Syn at every 2 weeks against Athos Contabilidade's every 9 months. Athos Contabilidade's advantage is iOS requirement (13.0 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.

Athos Contabilidade ships an update every 9 months, Syn every 2 weeks. The most recent releases landed on October 3, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Athos Contabilidade | Syn |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/syn/id6461774561/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 69.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 33 MB | 43 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | +4 |
| Developer | [TaskDO Desenvolvimento de Software](https://appshunter.io/developer/1654590025) | [Syngular ID](https://appshunter.io/developer/1702701596) |

## What reviewers say

### Athos Contabilidade

[App page](https://appshunter.io/ios/app/athos-contabilidade/id6446911150)

**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 Athos Contabilidade free?

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

### Is Syn free?

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

### Do Athos Contabilidade or Syn have ads?

Neither Athos Contabilidade nor Syn shows ads.

### Which is updated more often, Athos Contabilidade or Syn?

Athos Contabilidade ships an update every 9 months, and Syn every 2 weeks. Most recently, Athos Contabilidade was updated on October 3, 2026 and Syn on October 16, 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.*