# ACI Sign OTP vs Scadency

The clearest difference is in-app purchases: ACI Sign OTP at none against Scadency's 1. ACI Sign OTP also leads on iOS requirement (13.0 vs 26.0). Scadency's advantage is update cadence (weekly vs every 12 months). On price, ads and device support there is nothing between them.

Both are free to download. Scadency sells 1 one-off in-app purchase. ACI Sign OTP asks for nothing beyond the download.

ACI Sign OTP ships an update every 12 months, Scadency weekly. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ACI Sign OTP | Scadency |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Weekly** |
| Size | 8 MB | 7 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ACI Informatica S.p.A.](https://appshunter.io/developer/408680677) | [gianfranco coratella](https://appshunter.io/developer/6781719287) |

## What reviewers say

### ACI Sign OTP

[App page](https://appshunter.io/ios/app/aci-sign-otp/id1626986472)

**Features:** macOS Compatibility

**In-app purchases:** none


### Scadency

[App page](https://appshunter.io/ios/app/scadency/id6781719285)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Scadency Pro | $2.99 | one-time |


## Frequently asked questions

### Is ACI Sign OTP free?

ACI Sign OTP is free to download, with no in-app purchases.

### Is Scadency free?

Scadency is free to download, with in-app purchases available.

### Do ACI Sign OTP or Scadency have ads?

Neither ACI Sign OTP nor Scadency shows ads.

### Which is updated more often, ACI Sign OTP or Scadency?

ACI Sign OTP ships an update every 12 months, and Scadency weekly. Most recently, ACI Sign OTP was updated on October 25, 2026 and Scadency on October 31, 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.*