# eSignOTP vs 1NUMBER

The clearest difference is update cadence: 1NUMBER at every 2 months against eSignOTP's every 20 months. eSignOTP's advantage is iOS requirement (12.3 vs 15.0). 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.

eSignOTP ships an update every 20 months, 1NUMBER every 2 months. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | eSignOTP | 1NUMBER |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 2 months** |
| Size | 12 MB | 37 MB |
| Requires iOS | **12.3** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Notartel S.p.A.](https://appshunter.io/developer/1051642634) | [XSTREAM s.r.l.](https://appshunter.io/developer/1441638020) |

## What reviewers say

### eSignOTP

[App page](https://appshunter.io/ios/app/esignotp/id1437788354)

**Features:** macOS Compatibility

**In-app purchases:** none


### 1NUMBER

[App page](https://appshunter.io/ios/app/1number/id1441638021)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is eSignOTP free?

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

### Is 1NUMBER free?

1NUMBER is free to download, with no in-app purchases.

### Do eSignOTP or 1NUMBER have ads?

Neither eSignOTP nor 1NUMBER shows ads.

### Which is updated more often, eSignOTP or 1NUMBER?

eSignOTP ships an update every 20 months, and 1NUMBER every 2 months. Most recently, eSignOTP was updated on October 6, 2026 and 1NUMBER on October 7, 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.*