{"id":3945,"date":"2019-08-31T12:22:10","date_gmt":"2019-08-31T10:22:10","guid":{"rendered":"https:\/\/mindfield-shop.com\/?product=esense-sdk-2-0"},"modified":"2026-07-13T10:51:36","modified_gmt":"2026-07-13T08:51:36","slug":"esense-sdk","status":"publish","type":"product","link":"https:\/\/mindfield-shop.com\/en\/product\/esense-sdk\/","title":{"rendered":"Mindfield eSense SDK for mobile, cross-platform &#038; VR apps (iOS, Android, Flutter, Unity, Unreal)"},"content":{"rendered":"<div class=\"std\">\n<h2>eSense SDK for mobile, cross-platform &amp; VR apps<\/h2>\n<div class=\"mf-sdk-hardware-note\" style=\"margin:20px 0;padding:18px 20px;background:#fff6e9;border:1px solid #f0c987;border-left:5px solid #e8920c;border-radius:12px;\">\n<p style=\"margin:0 0 8px;font-size:1.06em;\"><strong>Software-only SDK \u2013 no eSense sensors included.<\/strong><\/p>\n<p style=\"margin:0 0 12px;\">This is a software-only development kit. <strong>No eSense sensors are included<\/strong> \u2013 the matching sensors are required separately. Here is how to get the hardware:<\/p>\n<ul style=\"margin:0;padding-left:20px;line-height:1.6;\">\n<li><strong>Full audio sensor set:<\/strong> <a href=\"https:\/\/mindfield-shop.com\/en\/product\/professionelle-anwender-set-inkl-sdk\/\">Professional Set incl. Mobile SDK<\/a> \u2013 or individually in the <a href=\"https:\/\/mindfield-shop.com\/en\/devices\/esense-home-devices\/\">eSense sensor shop<\/a> (Skin Response, Temperature, Respiration, Pulse).<\/li>\n<li><strong>Muscle (EMG) \/ EEGenius (EEG):<\/strong> <a href=\"https:\/\/mindfield-shop.com\/en\/product\/esense-muscle-or-esense-eegenius-device-sdk-in-c-for-unity-eeg-emg-app-development-e-g-for-vr-applications\/\">\u201ethe Kit\u201c incl. C#\/Unity SDK and test device<\/a>.<\/li>\n<\/ul>\n<\/div>\n<p>This is our eSense SDK (Software Development Kit) for <strong>developing your own apps<\/strong> for the Mindfield eSense sensors \u2013 natively for <strong>iOS and Android<\/strong>, via cross-platform frameworks such as <strong>Flutter<\/strong> and <strong>Capacitor\/Ionic<\/strong>, and for <strong>game engines and VR<\/strong> (Unity, Unreal Engine, Meta Quest, Pico). One unified streaming model, a ready-to-run demo app in source code and full documentation.<\/p>\n<p>It may be used without limit for commercial and non-commercial projects \u2013 royalty-free. The eSense sensors themselves are <strong>not<\/strong> included in the SDK and are ordered separately.\n<\/div>\n<h2>Who is this SDK for?<\/h2>\n<p>For developers building mobile biofeedback apps for iOS and Android \u2013 from clinical apps and stress-management tools to game and VR applications. You get raw and calibrated sensor data in real time for skin conductance (EDA\/GSR), skin temperature and respiration, plus a ready-made connection for the pulse sensor via the Bluetooth heart-rate standard. Integrate natively (Kotlin, Swift) or via cross-platform frameworks (Flutter, Capacitor\/Ionic, Unity, Unreal).<\/p>\n<h2>What&#8217;s included<\/h2>\n<p>Audio-based SDK for the three eSense audio sensors plus pulse connectivity via the Bluetooth standard:<\/p>\n<ul>\n<li><strong>eSense Skin Response<\/strong> &mdash; electrodermal activity (EDA \/ GSR), calibrated values in microsiemens (\u00b5S)<\/li>\n<li><strong>eSense Temperature<\/strong> &mdash; skin temperature in \u00b0C or \u00b0F<\/li>\n<li><strong>eSense Respiration<\/strong> &mdash; breathing amplitude (RA)<\/li>\n<li><strong>eSense Pulse<\/strong> &mdash; heart rate (BPM) and RR intervals via the Bluetooth heart-rate service standard (UUID 0x180D), no custom SDK required<\/li>\n<\/ul>\n<p><strong>Native SDKs &amp; plugins included:<\/strong><\/p>\n<ul>\n<li>iOS \/ iPadOS (Swift, Swift Package Manager) and Android (Kotlin)<\/li>\n<li>Flutter plugin (Dart) and Capacitor plugin (TypeScript, incl. OSC &amp; LSL utilities) for iOS + Android<\/li>\n<li>Unity Audio plugin (C#) for game and VR development<\/li>\n<li>Unreal Engine plugin (C++\/Blueprint, UE 5.4) with Android target for Meta Quest \/ Pico<\/li>\n<\/ul>\n<p><strong>Also:<\/strong><\/p>\n<ul>\n<li>Fully functional demo app in source code<\/li>\n<li>API documentation and quick-start guide<\/li>\n<li>Lifetime updates of the purchased platform version<\/li>\n<li>Unlimited commercial and non-commercial use, no royalties<\/li>\n<\/ul>\n<h2>Technical specification<\/h2>\n<table style=\"width:100%;border-collapse:collapse;\">\n<tbody>\n<tr>\n<th scope=\"row\" style=\"text-align:left;padding:8px;border-bottom:1px solid #eee;\">Platform<\/th>\n<td style=\"padding:8px;border-bottom:1px solid #eee;\">iOS 17+, Android 8.0+, Meta Quest \/ Pico (VR)<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\" style=\"text-align:left;padding:8px;border-bottom:1px solid #eee;\">Languages \/ frameworks<\/th>\n<td style=\"padding:8px;border-bottom:1px solid #eee;\">Swift, Kotlin, Flutter (Dart), Capacitor\/Ionic (TypeScript), Unity (C#), Unreal (C++\/Blueprint)<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\" style=\"text-align:left;padding:8px;border-bottom:1px solid #eee;\">IDE<\/th>\n<td style=\"padding:8px;border-bottom:1px solid #eee;\">Xcode, Android Studio, VS Code, Unity Editor, Unreal Editor<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\" style=\"text-align:left;padding:8px;border-bottom:1px solid #eee;\">Distribution<\/th>\n<td style=\"padding:8px;border-bottom:1px solid #eee;\">Swift Package Manager, Maven (AAR), npm (Capacitor), .unitypackage, Unreal plugin<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\" style=\"text-align:left;padding:8px;border-bottom:1px solid #eee;\">Plugin versions<\/th>\n<td style=\"padding:8px;border-bottom:1px solid #eee;\">iOS\/macOS v3.2, Android v3.0, Flutter v1.1, Capacitor v1.1, Unity Audio v1.1, Unreal v1.2 (eSense SDK Suite v5.0)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Sensors for mobile apps<\/h2>\n<div style=\"display:flex;flex-wrap:wrap;gap:16px;align-items:flex-end;justify-content:center;margin:18px 0;padding:22px 16px;background:#f6f8fc;border-radius:14px;\">\n<figure style=\"margin:0;text-align:center;width:130px;\"><img decoding=\"async\" src=\"https:\/\/mindfield-shop.com\/wp-content\/uploads\/2026\/06\/logo-skin-response.png?v=3\" alt=\"eSense Skin Response sensor\" style=\"height:46px;object-fit:contain;\"><figcaption style=\"font-size:12.5px;color:#5b6478;margin-top:8px;\"><strong>Skin Response<\/strong><br \/>EDA \u00b7 \u00b5S<\/figcaption><\/figure>\n<figure style=\"margin:0;text-align:center;width:130px;\"><img decoding=\"async\" src=\"https:\/\/mindfield-shop.com\/wp-content\/uploads\/2026\/06\/logo-temperature.png?v=3\" alt=\"eSense Temperature sensor\" style=\"height:46px;object-fit:contain;\"><figcaption style=\"font-size:12.5px;color:#5b6478;margin-top:8px;\"><strong>Temperature<\/strong><br \/>\u00b0C \/ \u00b0F<\/figcaption><\/figure>\n<figure style=\"margin:0;text-align:center;width:130px;\"><img decoding=\"async\" src=\"https:\/\/mindfield-shop.com\/wp-content\/uploads\/2026\/06\/logo-respiration.png?v=3\" alt=\"eSense Respiration sensor\" style=\"height:46px;object-fit:contain;\"><figcaption style=\"font-size:12.5px;color:#5b6478;margin-top:8px;\"><strong>Respiration<\/strong><br \/>RA<\/figcaption><\/figure>\n<figure style=\"margin:0;text-align:center;width:130px;\"><img decoding=\"async\" src=\"https:\/\/mindfield-shop.com\/wp-content\/uploads\/2026\/06\/logo-pulse.png?v=3\" alt=\"eSense Pulse sensor\" style=\"height:46px;object-fit:contain;\"><figcaption style=\"font-size:12.5px;color:#5b6478;margin-top:8px;\"><strong>Pulse<\/strong><br \/>BPM \u00b7 HRV<\/figcaption><\/figure>\n<\/div>\n<p style=\"font-size:13.5px;color:#5b6478;text-align:center;margin-top:-4px;\">Muscle (EMG) &amp; EEGenius (EEG) are integrated via the <a href=\"https:\/\/mindfield-shop.com\/en\/product\/esense-muscle-or-esense-eegenius-device-sdk-in-c-for-unity-eeg-emg-app-development-e-g-for-vr-applications\/\">Unity C# plugin<\/a>.<\/p>\n<h2>The mobile demo app in action (iOS \/ iPadOS)<\/h2>\n<p>The included demo app streams the audio sensors in real time \u2013 here on the iPad:<\/p>\n<div style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin:18px 0;\">\n<figure style=\"margin:0;\"><img decoding=\"async\" src=\"https:\/\/mindfield-shop.com\/wp-content\/uploads\/2026\/06\/ios-skin-response.png\" alt=\"eSense SDK iOS demo \u2013 skin conductance in microsiemens\" loading=\"lazy\" style=\"width:100%;border:1px solid #e6e9f0;border-radius:10px;\"><figcaption style=\"font-size:12.5px;color:#5b6478;margin-top:6px;text-align:center;\">Skin Response (\u00b5S)<\/figcaption><\/figure>\n<figure style=\"margin:0;\"><img decoding=\"async\" src=\"https:\/\/mindfield-shop.com\/wp-content\/uploads\/2026\/06\/ios-temperature.png\" alt=\"eSense SDK iOS demo \u2013 skin temperature in Celsius\" loading=\"lazy\" style=\"width:100%;border:1px solid #e6e9f0;border-radius:10px;\"><figcaption style=\"font-size:12.5px;color:#5b6478;margin-top:6px;text-align:center;\">Temperature (\u00b0C \/ \u00b0F)<\/figcaption><\/figure>\n<figure style=\"margin:0;\"><img decoding=\"async\" src=\"https:\/\/mindfield-shop.com\/wp-content\/uploads\/2026\/06\/ios-respiration.png\" alt=\"eSense SDK iOS demo \u2013 respiration\" loading=\"lazy\" style=\"width:100%;border:1px solid #e6e9f0;border-radius:10px;\"><figcaption style=\"font-size:12.5px;color:#5b6478;margin-top:6px;text-align:center;\">Respiration (RA)<\/figcaption><\/figure>\n<\/div>\n<h2>VR support (Meta Quest &amp; Pico)<\/h2>\n<p>Modern VR headsets are standalone Android devices \u2013 the eSense plugins run directly on the headset. You connect the audio sensors via the Unreal plugin (Android target, UE 5.4), hardware-tested on the Meta Quest 3S and supported on Meta Quest 2 \/ 3; Pico 4 Ultra (+ Enterprise) are in preparation. The Bluetooth sensors eSense Muscle (EMG) and eSense EEGenius (EEG) are reached via the <a href=\"https:\/\/mindfield-shop.com\/en\/product\/esense-muscle-or-esense-eegenius-device-sdk-in-c-for-unity-eeg-emg-app-development-e-g-for-vr-applications\/\">Unity C# plugin<\/a>.<\/p>\n<h2>Adapter and connection compatibility<\/h2>\n<p>The eSense audio sensors (Skin Response, Temperature, Respiration) connect via the 3.5 mm audio jack. Current smartphones without a jack require an active DAC adapter:<\/p>\n<ul>\n<li><strong>iPhone (USB-C from 15 \/ Lightning up to 14):<\/strong> Apple DAC adapter (USB-C or Lightning to jack) or an equivalent branded DAC<\/li>\n<li><strong>Android:<\/strong> USB-C-to-3.5 mm adapter with active DAC electronics (passive adapters do NOT work)<\/li>\n<li><strong>Tablets \/ Quest VR:<\/strong> tested with standard USB-C DAC adapters<\/li>\n<\/ul>\n<p><strong>Adapters we have tested and recommend:<\/strong> for iPhone\/iPad and Mac the <a href=\"https:\/\/amzn.to\/41zD2Gd\" target=\"_blank\" rel=\"nofollow noopener\">original Apple USB-C to 3.5&nbsp;mm adapter<\/a>; for Android\/Windows e.g. the <a href=\"https:\/\/amzn.to\/2SnAUA1\" target=\"_blank\" rel=\"nofollow noopener\">JSAUX USB-C to 3.5&nbsp;mm<\/a> (simple and inexpensive) or the <a href=\"https:\/\/amzn.to\/4lonwFh\" target=\"_blank\" rel=\"nofollow noopener\">BENFEI USB-C to 3.5&nbsp;mm with 60&nbsp;W charging<\/a>. You will find all tested adapters with notes in our helpdesk article <a href=\"https:\/\/help.mindfield.de\/helpdesk\/adapter-fuer-apple-geraete\" target=\"_blank\" rel=\"noopener\">\u201cAdapters for Android and Apple devices\u201d<\/a>.<\/p>\n<p>A wireless <strong>Bluetooth variant of the audio sensors<\/strong> (Skin Response, Temperature) is in development and will make the audio adapter unnecessary from Q1 2027.<\/p>\n<h2>Pulse sensor: Bluetooth standard, no custom SDK needed<\/h2>\n<p>The eSense Pulse implements the official Bluetooth SIG standard <strong>Heart Rate Service<\/strong> (service UUID <code>0x180D<\/code>, Heart Rate Measurement characteristic <code>0x2A37<\/code>). You don&#8217;t need a vendor-specific SDK \u2013 the native Bluetooth APIs of your platform are sufficient. Full code examples including a parser for the flags byte (UINT8 vs. UINT16) ship with the demo app.<\/p>\n<h2>Use cases<\/h2>\n<ul>\n<li><strong>Mobile biofeedback app<\/strong> &mdash; stress, relaxation or breathing training for iOS and Android<\/li>\n<li><strong>Cross-platform app<\/strong> &mdash; one codebase for iOS + Android via Flutter or Capacitor<\/li>\n<li><strong>VR application<\/strong> &mdash; immersive biofeedback experiences on Meta Quest \/ Pico<\/li>\n<li><strong>Research &amp; serious games<\/strong> &mdash; feed physiological signals into interactive scenarios<\/li>\n<\/ul>\n<h2>Frequently asked questions<\/h2>\n<div class=\"product-faq-section\">\n<h3>Which platforms does this SDK support?<\/h3>\n<p>iOS and Android natively (Swift, Kotlin), cross-platform via Flutter and Capacitor\/Ionic, plus Unity and Unreal Engine for games and VR (Meta Quest, Pico).<\/p>\n<h3>Which sensors are supported?<\/h3>\n<p>The three audio sensors Skin Response (\u00b5S), Temperature (\u00b0C\/\u00b0F) and Respiration (RA). Pulse is connected via the Bluetooth standard. For eSense Muscle (EMG) and eSense EEGenius (EEG) use the separate <a href=\"https:\/\/mindfield-shop.com\/en\/product\/esense-muscle-or-esense-eegenius-device-sdk-in-c-for-unity-eeg-emg-app-development-e-g-for-vr-applications\/\">Unity SDK<\/a>.<\/p>\n<h3>Do I need an adapter?<\/h3>\n<p>Devices without a 3.5 mm jack require an active DAC adapter (USB-C or Lightning to jack). Passive adapters do not work.<\/p>\n<h3>What license does the SDK have?<\/h3>\n<p>Unlimited commercial and non-commercial use, no royalties. Lifetime updates of the purchased platform version included.<\/p>\n<h3>Is there a demo app in source code?<\/h3>\n<p>Yes \u2013 a fully functional demo app is included (see screenshots).<\/p>\n<\/div>\n<h2>Related products<\/h2>\n<h3>eSense Professional Sets<\/h3>\n<ul>\n<li><a href=\"https:\/\/mindfield-shop.com\/en\/product\/professionelle-anwender-set-inkl-sdk\/\"><strong>eSense Complete Set for Professional Users (incl. SDK)<\/strong><\/a> &mdash; all sensors plus SDK bundled<\/li>\n<li><a href=\"https:\/\/mindfield-shop.com\/en\/product\/professionelle-anwender-set-exkl-sdk\/\">eSense Complete Set for Professional Users (without SDK)<\/a><\/li>\n<\/ul>\n<h3>The individual eSense sensors<\/h3>\n<ul>\n<li><a href=\"https:\/\/mindfield-shop.com\/en\/product\/esense-skin-response\/\">eSense Skin Response<\/a> &mdash; skin conductance (EDA \u00b7 \u00b5S)<\/li>\n<li><a href=\"https:\/\/mindfield-shop.com\/en\/product\/esense-temperature\/\">eSense Temperature<\/a> &mdash; skin temperature (\u00b0C \/ \u00b0F)<\/li>\n<li><a href=\"https:\/\/mindfield-shop.com\/en\/product\/esense-respiration\/\">eSense Respiration<\/a> &mdash; respiration (RA)<\/li>\n<li><a href=\"https:\/\/mindfield-shop.com\/en\/product\/esense-pulse\/\">eSense Pulse<\/a> &mdash; heart rate (BPM \u00b7 HRV)<\/li>\n<li><a href=\"https:\/\/mindfield-shop.com\/en\/esense-muscle-home-edition-3\/\">eSense Muscle Home<\/a> &amp; <a href=\"https:\/\/mindfield-shop.com\/en\/product\/esense-muscle-pro-edition\/\">eSense Muscle Pro<\/a> &mdash; muscle activity (EMG \u00b7 \u00b5V)<\/li>\n<li><a href=\"https:\/\/mindfield-shop.com\/en\/product\/esense-eegenius-starter-set\/\">eSense EEGenius<\/a> &mdash; EEG (\u00b5V)<\/li>\n<\/ul>\n<h3>Other eSense SDKs<\/h3>\n<ul>\n<li><a href=\"https:\/\/mindfield-shop.com\/en\/product\/esense-sdk-for-creating-your-own-windows-software-for-the-esense-sensors\/\">eSense SDK for Windows<\/a> &mdash; all six sensors natively (.NET 10)<\/li>\n<li><a href=\"https:\/\/mindfield-shop.com\/en\/product\/esense-sdk-macos\/\">eSense SDK for macOS<\/a><\/li>\n<li><a href=\"https:\/\/mindfield-shop.com\/en\/product\/esense-muscle-or-esense-eegenius-device-sdk-in-c-for-unity-eeg-emg-app-development-e-g-for-vr-applications\/\">eSense SDK for Muscle \/ EEGenius (C# for Unity, EMG\/EEG)<\/a><\/li>\n<\/ul>\n<h6>Apple, iPhone, iPad, iPod touch are trademarks of Apple Inc., registered in the U.S. and other countries. | IOS is a trademark or registered trademark of Cisco in the U.S. and other countries and is used under licence. | Android is a trademark of Google LLC | The Bluetooth\u00ae word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Mindfield Biosystems Ltd. is under license. Other trademarks and trade names are those of their respective owners.<\/h6>\n","protected":false},"excerpt":{"rendered":"<p>Build your own iOS and Android apps for biofeedback and neurofeedback with the eSense SDK. New in Suite v5.0: the Bluetooth sensors eSense Pulse, Muscle and EEGenius now run natively in the iOS and Android SDKs too \u2013 so all six eSense sensors are available natively on mobile. Verified on real hardware. Also includes Flutter, Capacitor, Unity and Unreal plugins (audio sensors).<\/p>\n","protected":false},"featured_media":51086,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[462,464],"product_tag":[501,447,448,513,450,449],"class_list":["post-3945","product","type-product","status-publish","has-post-thumbnail","product_cat-esense-sdk-software-en","product_cat-esense-home-devices","product_tag-biofeedback-en","product_tag-esense-en","product_tag-sdk-en","product_tag-software-en","product_tag-software-development","product_tag-windows-en","first","instock","virtual","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/mindfield-shop.com\/en\/wp-json\/wp\/v2\/product\/3945","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mindfield-shop.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/mindfield-shop.com\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/mindfield-shop.com\/en\/wp-json\/wp\/v2\/comments?post=3945"}],"version-history":[{"count":2,"href":"https:\/\/mindfield-shop.com\/en\/wp-json\/wp\/v2\/product\/3945\/revisions"}],"predecessor-version":[{"id":51754,"href":"https:\/\/mindfield-shop.com\/en\/wp-json\/wp\/v2\/product\/3945\/revisions\/51754"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mindfield-shop.com\/en\/wp-json\/wp\/v2\/media\/51086"}],"wp:attachment":[{"href":"https:\/\/mindfield-shop.com\/en\/wp-json\/wp\/v2\/media?parent=3945"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/mindfield-shop.com\/en\/wp-json\/wp\/v2\/product_brand?post=3945"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/mindfield-shop.com\/en\/wp-json\/wp\/v2\/product_cat?post=3945"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/mindfield-shop.com\/en\/wp-json\/wp\/v2\/product_tag?post=3945"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}