# KEYMO vs Xtremum

The clearest difference is update cadence: KEYMO at monthly against Xtremum's every 3 months. 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.

KEYMO ships an update monthly, Xtremum every 3 months. The most recent releases landed on October 3, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | KEYMO | Xtremum |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free | — |
| Size | 141 MB | 58 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BYSTAMP](https://appshunter.io/developer/1253026569) | [Fulll](https://appshunter.io/developer/1641128734) |

## What reviewers say

### KEYMO

[App page](https://appshunter.io/ios/app/keymo/id1533823438)

Digitally sign and seal documents on your mobile device without an internet connection. This app streamlines document processing by eliminating the need for printing, manual stamping, and scanning, saving time and resources. It utilizes advanced security features for authentic and secure electronic signatures.

**Highlights:** Offline electronic sealing and signing, Eliminates printing and scanning, Advanced security with cryptographic chip, Patented authentication technology, Digital identity vault

**In-app purchases:** none


### Xtremum

[App page](https://appshunter.io/ios/app/xtremum/id6752380005)

**In-app purchases:** none


## Frequently asked questions

### Is KEYMO free?

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

### Is Xtremum free?

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

### Do KEYMO or Xtremum have ads?

Neither KEYMO nor Xtremum shows ads.

### Which is updated more often, KEYMO or Xtremum?

KEYMO ships an update monthly, and Xtremum every 3 months. Most recently, KEYMO was updated on October 3, 2026 and Xtremum on October 1, 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.*