# SAYEN vs Fly TPAC

The clearest difference is update cadence: Fly TPAC at every 2 days against SAYEN's every 6 weeks. Fly TPAC also leads on iOS requirement (13.5 vs 15.6). 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.

SAYEN ships an update every 6 weeks, Fly TPAC every 2 days. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | SAYEN | Fly TPAC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sayen/id1530021734/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 days** |
| Monetization | Free | — |
| Size | 72 MB | 6 MB |
| Requires iOS | 15.6 | **13.5** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [sirar by stc](https://appshunter.io/developer/1639333711) | [The Private Aviation Company - TPAC LLC](https://appshunter.io/developer/1781625206) |

## What reviewers say

### SAYEN

[App page](https://appshunter.io/ios/app/sayen/id1530021734)

Manage document workflows and digital signatures with a high-trust solution. Protect your organization, users, and documents from unauthorized changes using cryptographic digital signatures.

**Highlights:** Document workflow management, Cryptographic digital signatures, High trust security, Protection against unauthorized changes, User and document protection

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Fly TPAC

[App page](https://appshunter.io/ios/app/fly-tpac/id6738644055)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SAYEN free?

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

### Is Fly TPAC free?

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

### Do SAYEN or Fly TPAC have ads?

Neither SAYEN nor Fly TPAC shows ads.

### Which is updated more often, SAYEN or Fly TPAC?

SAYEN ships an update every 6 weeks, and Fly TPAC every 2 days. Most recently, SAYEN was updated on October 24, 2026 and Fly TPAC on October 27, 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.*