iSignatureSuite vs Email Security Suite
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
iSignatureSuite
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iSignatureSuite - The free app for capturing signatures on the iPad or iPhone This product is a stand-alone, free signature app and does not require any additional third-party software (such as Adobe Acrobat). However, this signature capturing app is also available to integrators as a component for their own apps. It is necessary to have an account with a webSignatureOffice server (www.webSignatureOffice.com) in order to run iSignatureSuite. Input: ⢠PDF/A documents created by the customer (via webSignatureOffice server) ⢠It is also possible for the above PDF documents to have customer-defined signature fields ⢠It is also possible for the above PDF documents to have customer-created form fields Output: ⢠When the outgoing document is PDF/A compliant, the document remains PDF/A compliant after signing ⢠ISO-compliant PDF signatures - can be checked using all standard products (e.g. Adobe Reader) and enables interoperability with other signature processes and programmes which conform with the standards ⢠Capture a handwritten electronic signature using an iPad Ability to customise / integrate: ⢠Can also be fully integrated into customer apps as a component Ease of use and user-friendliness: ⢠Sign directly in the document (no separate signature window) ⢠Preview of the selected PDFs ⢠Allows browsing, zooming and continuous scrolling of PDF documents ⢠Filling out of PDF form fields and supports check boxes, radio buttons and drop-down menus ⢠Clear document management with status tracking, automatic reminder (for all signatories) Automation: ⢠Template management (saving documents for re-use, including signature templates) ⢠Intelligent signature templates (e.g. automated positioning of signature fields, even for dynamic documents, e.g. using key words) ⢠Jumps automatically to the signature fields during the signing process and zooms in if necessary ⢠Handles compulsory and optional signature fields differently (stop at compulsory field = stop the whole signing process) Security: ⢠Supports encryption on the iPad using biometric data with RSA 2048 Bit ⢠Delayed signing is possible at any time without compromising safety ⢠Form fields automatically locked once signed ⢠Signatures provided can easily be checked (using Adobe Acrobat Reader) ⢠Secure communication over https By using the Apple Pencil and iSignatureSuite, you can now detect the pressure distribution of your signature, and your typeface is also detected more clearly. The Apple Pencil is currently only compatible with the iPad Pro.
Email Security Suite
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Email Security Suite by Sixscape is a certificate manager for popular email clients for certificate based digital signing and encryption of mails. Email Security Suite delivers on internal and external secure email communications with automation of certificate request, deployment and management with protection of your private key and allows you to achieve and maintain compliance.
Screenshots
Verdict
The clearest difference is update cadence: Email Security Suite at every 2 months against iSignatureSuite's every 6 months. Email Security Suite also leads on iOS requirement (12.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
iSignatureSuite ships an update every 6 months, Email Security Suite every 2 months. The most recent releases landed on September 17, 2026 and September 15, 2026 respectively.
| Parameter | iSignatureSuite | Email Security Suite |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 months | Every 2 months ā better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 12.0 ā better |
| Further details ā not scored | ||
| Size | 13 MB | 82 MB |
| Age rating | 4+ | 4+ |
| Developer | StepOver International GmbH | Sixscape Communications |
In-app purchases
iSignatureSuite
No in-app purchases
Email Security Suite
No in-app purchases
Questions
Is iSignatureSuite free?
Is Email Security Suite free?
Do iSignatureSuite or Email Security Suite have ads?
Which is updated more often, iSignatureSuite or Email Security Suite?
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