# eSignApp vs Kalliope Mobile

The clearest difference is update cadence: Kalliope Mobile at monthly against eSignApp's every 45 months. Kalliope Mobile also leads on iOS requirement (16.0 vs 18.6). eSignApp's advantage is device support (3 vs 1). On price, ads and in-app purchases there is nothing between them.

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

eSignApp ships an update every 45 months, Kalliope Mobile monthly. The most recent releases landed on September 15, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | eSignApp | Kalliope Mobile |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 45 months | **Monthly** |
| Size | 3 MB | 97 MB |
| Requires iOS | 18.6 | **16.0** |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Notartel S.p.A.](https://appshunter.io/developer/1051642634) | [Kalliope srl](https://appshunter.io/developer/1108203677) |

## What reviewers say

### eSignApp

[App page](https://appshunter.io/ios/app/esignapp/id1440468425)

**Features:** macOS Compatibility

**In-app purchases:** none


### Kalliope Mobile

[App page](https://appshunter.io/ios/app/kalliope-mobile/id6736407416)

**Features:** Siri integration

**In-app purchases:** none


## Frequently asked questions

### Is eSignApp free?

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

### Is Kalliope Mobile free?

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

### Do eSignApp or Kalliope Mobile have ads?

Neither eSignApp nor Kalliope Mobile shows ads.

### Which is updated more often, eSignApp or Kalliope Mobile?

eSignApp ships an update every 45 months, and Kalliope Mobile monthly. Most recently, eSignApp was updated on September 15, 2026 and Kalliope Mobile on September 22, 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.*