diff --git a/bot.go b/bot.go
index 8da821c..f7d0f29 100644
--- a/bot.go
+++ b/bot.go
@@ -409,6 +409,10 @@ func (b *Bot) ProcessUpdate(u Update) {
 			return
 		}
 
+		if m.WebAppData != nil {
+			b.handle(OnWebApp, c)
+		}
+
 		if m.ProximityAlert != nil {
 			b.handle(OnProximityAlert, c)
 			return
@@ -1087,6 +1091,29 @@ func (b *Bot) Respond(c *Callback, resp ...*CallbackResponse) error {
 	return err
 }
 
+// AnswerWebApp sends a response for a query from Web App and returns
+// information about an inline message sent by a Web App on behalf of a user
+func (b *Bot) AnswerWebApp(query *Query, resp *WebAppQueryResponse) (SentWebAppMessage, error) {
+	resp.WebAppQueryID = query.ID
+	resp.Result.Process(b)
+
+	data, err := b.Raw("answerWebAppQuery", resp)
+
+	if err != nil {
+		return SentWebAppMessage{}, err
+	}
+
+	var response struct {
+		Result SentWebAppMessage
+	}
+
+	if err := json.Unmarshal(data, &response); err != nil {
+		return SentWebAppMessage{}, wrapError(err)
+	}
+
+	return response.Result, err
+}
+
 // FileByID returns full file object including File.FilePath, allowing you to
 // download the file from the server.
 //
diff --git a/context.go b/context.go
index 6bd9ec1..549b4f1 100644
--- a/context.go
+++ b/context.go
@@ -145,6 +145,10 @@ type Context interface {
 	// See Respond from bot.go.
 	Respond(resp ...*CallbackResponse) error
 
+	// AnswerWebApp sends a response to the Web App query.
+	// See AnswerWebApp from bot.go.
+	AnswerWebApp(resp *WebAppQueryResponse) error
+
 	// Get retrieves data from the context.
 	Get(key string) interface{}
 
@@ -454,6 +458,14 @@ func (c *nativeContext) Respond(resp ...*CallbackResponse) error {
 	return c.b.Respond(c.u.Callback, resp...)
 }
 
+func (c *nativeContext) AnswerWebApp(resp *WebAppQueryResponse) error {
+	if c.u.Query == nil {
+		return errors.New("telebot: context inline query is nil")
+	}
+	_, err := c.b.AnswerWebApp(c.u.Query, resp)
+	return err
+}
+
 func (c *nativeContext) Set(key string, value interface{}) {
 	c.lock.Lock()
 	defer c.lock.Unlock()
diff --git a/inline.go b/inline.go
index b369139..6b66523 100644
--- a/inline.go
+++ b/inline.go
@@ -137,3 +137,15 @@ func inferIQR(result Result) error {
 
 	return nil
 }
+
+// WebAppQueryResponse builds a response to an web app query.
+type WebAppQueryResponse struct {
+	// (Required) Unique identifier for the query to be answered
+	WebAppQueryID string `json:"web_app_query_id"`
+	// (Required) A object describing the message to be sent
+	Result Result `json:"result"`
+}
+
+type SentWebAppMessage struct {
+	InlineMessageID string `json:"inline_message_id"`
+}
diff --git a/telebot.go b/telebot.go
index b5cb932..34f0815 100644
--- a/telebot.go
+++ b/telebot.go
@@ -134,6 +134,9 @@ const (
 
 	// Will fire on auto delete timer set.
 	OnAutoDeleteTimer = "\amessage_auto_delete_timer_changed"
+
+	// Will fire on the web app data.
+	OnWebApp = "\aweb_app"
 )
 
 // ChatAction is a client-side status indicating bot activity.