# KEYMO

> Mobile application for secure electronic document sealing and signing using a physical stamp. (iPhone/iPad app by BYSTAMP.)

- Source: https://appshunter.io/ios/app/keymo/id1533823438 (this page in markdown: same URL + `.md`)
- Developer: [BYSTAMP](https://appshunter.io/developer/1253026569)
- Category: Business, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 141 MB
- Languages: English, French, German, Japanese, Spanish
- Released: 2021-08-25
- Data updated: 2026-06-06
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/keymo/id1533823438/reviews.md

## What is KEYMO?

Affix as much as you want electronic seals and signatures thanks to the application and its KEYMO® stamp, on the fly on your mobile or someone else’s one without internet connection.
Avoid printing, stamping, hand-signing and scanning your documents. Save time and paper and create real electronic signatures.
The security applied is the most advanced thanks to the use of CC EAL5+ cryptographic chip in the physical KEYMO® stamp.
The application associated with this stamp allows patented unique authentication and signature generation technology.
The KEYMO® digital stamp then becomes the vault of your digital identity.
Free application and updates. Unlimited use without subscription or additional fees.

## Key features

- Offline electronic sealing and signing
- Eliminates printing and scanning
- Advanced security with cryptographic chip
- Patented authentication technology
- Digital identity vault

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/keymo/id1533823438/reviews.md

### 3/5 — Configuration et initialisation une galère sur IOS

*2024-05-13, version 3.1.0*

Après plusieurs lancements de la configuration sur IPad ça à fini par fonctionner (mise à jour de je ne sais quoi qui ne se faisait pas et qui a finit par fonctionner ( Écriture su SE ??) Il faut Être patient ou informaticien et surtout en vouloir. Mais une fois le paramètres terminés Ça fonctionne enfin!
J’avais oublié il faut également être bilingue: le mail de confirmation de l’inscription est en Anglais.

### 1/5 — UNE ÉNORME ENVIE DE CHURN !!

*2023-01-08, version 2.2.2*

Je bataille depuis des heures pour le setup initial sur IOS. -à la Création du compte le bouton suivant reste grisé et il faut comprendre sans la moindre indication qu’il faut un certain niveau de complexité pour que le mot de passe soit accepté alors pour un dev c’est « l’évidence » pour un utilisateur lambda beaucoup moins - une fois le setup presque terminé (affichage de la preview du timbre) l’app demande une validation avec le timbre physique : j’obtiens un bel écran « Connecté » avec un beau disque vert du plus bel effet puis plus rien. Si je swipe cet écran vers le bas je reviens à la fin du setup et c’est sans fin. J’abandonne j’attends la prochaine mise à jour
Update 08/01/2022 : Bon je viens de comprendre : manifestement l’appli Uploade les infos saisies dans la clé : et manifestement c’est la taille des images de logo qui fait planter le tout…
Donc mm les devs :
- un petit message « téléchargement en cours des infos dans votre clé » ne serait pas du luxe, de même qu’un contrôle de la taille des logos et signatures AVANT Upload.

## Frequently asked questions about KEYMO

### How does KEYMO work without an internet connection?

KEYMO leverages a physical KEYMO® stamp equipped with a CC EAL5+ cryptographic chip. This chip stores your digital identity and handles the authentication and signature generation process locally on your mobile device, even when offline.

### Is KEYMO secure for sensitive documents?

Yes, KEYMO employs advanced security measures. The use of a CC EAL5+ cryptographic chip in the physical stamp ensures the highest level of security for your digital identity and generated signatures.

### What devices are compatible with KEYMO?

KEYMO is compatible with a range of Apple devices, including Mac, iPhone, iPad, and iPod. This broad compatibility allows for flexible use across different platforms.

### Does KEYMO require a subscription or have hidden fees?

No, the KEYMO application is free to use with unlimited updates. There are no subscriptions or additional fees required for its use, making it a cost-effective solution.

### How often is KEYMO updated?

The latest version of KEYMO is 4.2.0, and it was last updated on January 22, 2025. Updates are provided to ensure continued functionality and security.

### What is the age rating for KEYMO?

KEYMO has an age rating of 4+, indicating it is suitable for users of all ages. This makes it accessible for a wide range of individuals and businesses.

### Does KEYMO have ads?

No, KEYMO does not contain advertisements. The application is entirely ad-free, providing an uninterrupted user experience.

## Version history (last 5 releases)

### 4.2.0 — 2025-01-22

Handwritten signature added to activation code

### 4.1.3 — 2025-01-09

Fixed an issue that prevented signing in certain cases.

### 4.1.1 — 2024-12-01

Remove the watermark on the PDF viewer

### 4.1.0 — 2024-11-27

- Secure KEYMO formatting by sending a special link by email
- Added image preview before insertion in the buffer
- Various bugs fixed

### 4.0.0 — 2024-10-14

- Improved stamping and signing speed
- New, simplified way of creating your imprint
- New welcome pages
- Possibility of receiving your activation code again
- New button to exit the whole KEYMO® activation process

## Apps similar to KEYMO

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [WOSH - Carwash Evolved](https://appshunter.io/ios/app/wosh-carwash-evolved/id1451972049) | 4.1 (20) | Free | Business |
| [ParkSmart-BayST](https://appshunter.io/ios/app/parksmart-bayst/id1607533495) | 3.7 (549) | Free | Business |

## Related topics

[bystamp](https://appshunter.io/ios/topics/bystamp)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-06.*