diff --git a/app/src/main/java/info/nightscout/androidaps/activities/SurveyActivity.kt b/app/src/main/java/info/nightscout/androidaps/activities/SurveyActivity.kt
index ff3e361a9b..86c90e1657 100644
--- a/app/src/main/java/info/nightscout/androidaps/activities/SurveyActivity.kt
+++ b/app/src/main/java/info/nightscout/androidaps/activities/SurveyActivity.kt
@@ -8,9 +8,9 @@ import info.nightscout.androidaps.R
 import info.nightscout.androidaps.data.defaultProfile.DefaultProfile
 import info.nightscout.androidaps.dialogs.ProfileViewerDialog
 import info.nightscout.androidaps.interfaces.ActivePluginProvider
+import info.nightscout.androidaps.interfaces.ProfileFunction
 import info.nightscout.androidaps.logging.AAPSLogger
 import info.nightscout.androidaps.logging.LTag
-import info.nightscout.androidaps.interfaces.ProfileFunction
 import info.nightscout.androidaps.utils.ActivityMonitor
 import info.nightscout.androidaps.utils.DateUtil
 import info.nightscout.androidaps.utils.InstanceId
@@ -62,16 +62,19 @@ class SurveyActivity : NoSplashAppCompatActivity() {
                 ToastUtils.showToastInUiThread(this, R.string.invalidweight)
                 return@setOnClickListener
             }
-            val profile = defaultProfile.profile(age, tdd, weight, profileFunction.getUnits())
-            val args = Bundle()
-            args.putLong("time", DateUtil.now())
-            args.putInt("mode", ProfileViewerDialog.Mode.CUSTOM_PROFILE.ordinal)
-            args.putString("customProfile", profile.data.toString())
-            args.putString("customProfileUnits", profile.units)
-            args.putString("customProfileName", "Age: $age TDD: $tdd Weight: $weight")
-            val pvd = ProfileViewerDialog()
-            pvd.arguments = args
-            pvd.show(supportFragmentManager, "ProfileViewDialog")
+            profileFunction.getProfile()?.let { runningProfile ->
+                val profile = defaultProfile.profile(age, tdd, weight, profileFunction.getUnits())
+                ProfileViewerDialog().also { pvd ->
+                    pvd.arguments = Bundle().also {
+                        it.putLong("time", DateUtil.now())
+                        it.putInt("mode", ProfileViewerDialog.Mode.PROFILE_COMPARE.ordinal)
+                        it.putString("customProfile", runningProfile.data.toString())
+                        it.putString("customProfile2", profile.data.toString())
+                        it.putString("customProfileUnits", profile.units)
+                        it.putString("customProfileName", "Age: $age TDD: $tdd Weight: $weight")
+                    }
+                }.show(supportFragmentManager, "ProfileViewDialog")
+            }
         }
 
         survey_submit.setOnClickListener {
diff --git a/core/src/main/java/info/nightscout/androidaps/data/Profile.java b/core/src/main/java/info/nightscout/androidaps/data/Profile.java
index 7f583663bb..9fe8c7846e 100644
--- a/core/src/main/java/info/nightscout/androidaps/data/Profile.java
+++ b/core/src/main/java/info/nightscout/androidaps/data/Profile.java
@@ -370,7 +370,7 @@ public class Profile {
         return lastValue;
     }
 
-    protected String format_HH_MM(Integer timeAsSeconds) {
+    public static String format_HH_MM(Integer timeAsSeconds) {
         String time;
         int hour = timeAsSeconds / 60 / 60;
         int minutes = (timeAsSeconds - hour * 60 * 60) / 60;
diff --git a/core/src/main/java/info/nightscout/androidaps/dialogs/ProfileViewerDialog.kt b/core/src/main/java/info/nightscout/androidaps/dialogs/ProfileViewerDialog.kt
index 56e48bd894..75708b76ae 100644
--- a/core/src/main/java/info/nightscout/androidaps/dialogs/ProfileViewerDialog.kt
+++ b/core/src/main/java/info/nightscout/androidaps/dialogs/ProfileViewerDialog.kt
@@ -1,6 +1,7 @@
 package info.nightscout.androidaps.dialogs
 
 import android.os.Bundle
+import android.text.Spanned
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
@@ -14,10 +15,12 @@ import info.nightscout.androidaps.data.Profile
 import info.nightscout.androidaps.interfaces.ActivePluginProvider
 import info.nightscout.androidaps.interfaces.DatabaseHelperInterface
 import info.nightscout.androidaps.utils.DateUtil
+import info.nightscout.androidaps.utils.HtmlHelper
 import info.nightscout.androidaps.utils.resources.ResourceHelper
 import kotlinx.android.synthetic.main.close.*
 import kotlinx.android.synthetic.main.dialog_profileviewer.*
 import org.json.JSONObject
+import java.text.DecimalFormat
 import javax.inject.Inject
 
 class ProfileViewerDialog : DaggerDialogFragment() {
@@ -32,11 +35,13 @@ class ProfileViewerDialog : DaggerDialogFragment() {
     enum class Mode(val i: Int) {
         RUNNING_PROFILE(1),
         CUSTOM_PROFILE(2),
-        DB_PROFILE(3)
+        DB_PROFILE(3),
+        PROFILE_COMPARE(4)
     }
 
     private var mode: Mode = Mode.RUNNING_PROFILE
     private var customProfileJson: String = ""
+    private var customProfileJson2: String = ""
     private var customProfileName: String = ""
     private var customProfileUnits: String = Constants.MGDL
 
@@ -49,6 +54,8 @@ class ProfileViewerDialog : DaggerDialogFragment() {
             customProfileJson = bundle.getString("customProfile", "")
             customProfileUnits = bundle.getString("customProfileUnits", Constants.MGDL)
             customProfileName = bundle.getString("customProfileName", "")
+            if (mode == Mode.PROFILE_COMPARE)
+                customProfileJson2 = bundle.getString("customProfile2", "")
         }
 
         dialog?.window?.requestFeature(Window.FEATURE_NO_TITLE)
@@ -65,11 +72,13 @@ class ProfileViewerDialog : DaggerDialogFragment() {
         close.setOnClickListener { dismiss() }
 
         val profile: Profile?
+        val profile2: Profile?
         val profileName: String?
         val date: String?
         when (mode) {
             Mode.RUNNING_PROFILE -> {
                 profile = activePlugin.activeTreatments.getProfileSwitchFromHistory(time)?.profileObject
+                profile2 = null
                 profileName = activePlugin.activeTreatments.getProfileSwitchFromHistory(time)?.customizedName
                 date = dateUtil.dateAndTimeString(activePlugin.activeTreatments.getProfileSwitchFromHistory(time)?.date
                     ?: 0)
@@ -78,6 +87,15 @@ class ProfileViewerDialog : DaggerDialogFragment() {
 
             Mode.CUSTOM_PROFILE  -> {
                 profile = Profile(injector, JSONObject(customProfileJson), customProfileUnits)
+                profile2 = null
+                profileName = customProfileName
+                date = ""
+                profileview_datelayout.visibility = View.GONE
+            }
+
+            Mode.PROFILE_COMPARE -> {
+                profile = Profile(injector, JSONObject(customProfileJson), customProfileUnits)
+                profile2 = Profile(injector, JSONObject(customProfileJson2), customProfileUnits)
                 profileName = customProfileName
                 date = ""
                 profileview_datelayout.visibility = View.GONE
@@ -86,6 +104,7 @@ class ProfileViewerDialog : DaggerDialogFragment() {
             Mode.DB_PROFILE      -> {
                 val profileList = databaseHelper.getProfileSwitchData(time, true)
                 profile = if (profileList.isNotEmpty()) profileList[0].profileObject else null
+                profile2 = null
                 profileName = if (profileList.isNotEmpty()) profileList[0].customizedName else null
                 date = if (profileList.isNotEmpty()) dateUtil.dateAndTimeString(profileList[0].date) else null
                 profileview_datelayout.visibility = View.VISIBLE
@@ -93,20 +112,38 @@ class ProfileViewerDialog : DaggerDialogFragment() {
         }
         profileview_noprofile.visibility = View.VISIBLE
 
-        profile?.let {
-            profileview_units.text = it.units
-            profileview_dia.text = resourceHelper.gs(R.string.format_hours, it.dia)
-            profileview_activeprofile.text = profileName
-            profileview_date.text = date
-            profileview_ic.text = it.icList
-            profileview_isf.text = it.isfList
-            profileview_basal.text = it.basalList
-            profileview_target.text = it.targetList
-            basal_graph.show(it)
+        if (mode == Mode.PROFILE_COMPARE)
+            profile?.let { profile1 ->
+                profile2?.let { profile2 ->
+                    profileview_units.text = profile1.units
+                    profileview_dia.text = HtmlHelper.fromHtml(formatColors("", profile1.dia, profile1.dia, DecimalFormat("0.00"), resourceHelper.gs(R.string.shorthour)))
+                    profileview_activeprofile.text = profileName
+                    profileview_date.text = date
+                    profileview_ic.text = ics(profile1, profile2)
+                    profileview_isf.text = isfs(profile1, profile2)
+                    profileview_basal.text = basals(profile1, profile2)
+                    profileview_target.text = HtmlHelper.fromHtml(formatColors("", profile1.targetList + "<br>", profile2.targetList, ""))
+                    basal_graph.show(profile1, profile2)
+                }
 
-            profileview_noprofile.visibility = View.GONE
-            profileview_invalidprofile.visibility = if (it.isValid("ProfileViewDialog")) View.GONE else View.VISIBLE
-        }
+                profileview_noprofile.visibility = View.GONE
+                profileview_invalidprofile.visibility = if (profile1.isValid("ProfileViewDialog")) View.GONE else View.VISIBLE
+            }
+        else
+            profile?.let {
+                profileview_units.text = it.units
+                profileview_dia.text = resourceHelper.gs(R.string.format_hours, it.dia)
+                profileview_activeprofile.text = profileName
+                profileview_date.text = date
+                profileview_ic.text = it.icList
+                profileview_isf.text = it.isfList
+                profileview_basal.text = it.basalList
+                profileview_target.text = it.targetList
+                basal_graph.show(it)
+
+                profileview_noprofile.visibility = View.GONE
+                profileview_invalidprofile.visibility = if (it.isValid("ProfileViewDialog")) View.GONE else View.VISIBLE
+            }
     }
 
     override fun onStart() {
@@ -121,6 +158,79 @@ class ProfileViewerDialog : DaggerDialogFragment() {
         bundle.putString("customProfile", customProfileJson)
         bundle.putString("customProfileName", customProfileName)
         bundle.putString("customProfileUnits", customProfileUnits)
+        if (mode == Mode.PROFILE_COMPARE)
+            bundle.putString("customProfile2", customProfileJson2)
     }
 
+    private fun formatColors(label: String, value1: Double, value2: Double, format: DecimalFormat, units: String): String {
+        return formatColors(label, format.format(value1), format.format(value2), units)
+    }
+
+    private fun formatColors(label: String, text1: String, text2: String, units: String): String {
+        var s = "<font color='${resourceHelper.gc(R.color.white)}'>$label</font>"
+        s += "    "
+        s += "<font color='${resourceHelper.gc(R.color.tempbasal)}'>$text1</font>"
+        s += "    "
+        s += "<font color='${resourceHelper.gc(R.color.examinedProfile)}'>$text2</font>"
+        s += "    "
+        s += "<font color='${resourceHelper.gc(R.color.white)}'>$units</font>"
+        return s
+    }
+
+    private fun basals(profile1: Profile, profile2: Profile): Spanned {
+        var prev1 = 0.0
+        var prev2 = 0.0
+        val s = StringBuilder()
+        for (hour in 0..23) {
+            val val1 = profile1.getBasalTimeFromMidnight(hour * 60 * 60)
+            val val2 = profile2.getBasalTimeFromMidnight(hour * 60 * 60)
+            if (val1 != prev1 || val2 != prev2) {
+                s.append(formatColors(Profile.format_HH_MM(hour * 60 * 60), val1, val2, DecimalFormat("0.00"), resourceHelper.gs(R.string.profile_ins_units_per_hour)))
+                s.append("<br>")
+            }
+            prev1 = val1
+            prev2 = val2
+        }
+        s.append(formatColors(
+            "    ∑ ",
+            profile1.baseBasalSum(),
+            profile2.baseBasalSum(),
+            DecimalFormat("0.00"),
+            resourceHelper.gs(R.string.insulin_unit_shortname)))
+        return HtmlHelper.fromHtml(s.toString())
+    }
+
+    private fun ics(profile1: Profile, profile2: Profile): Spanned {
+        var prev1 = 0.0
+        var prev2 = 0.0
+        val s = StringBuilder()
+        for (hour in 0..23) {
+            val val1 = profile1.getIcTimeFromMidnight(hour * 60 * 60)
+            val val2 = profile2.getIcTimeFromMidnight(hour * 60 * 60)
+            if (val1 != prev1 || val2 != prev2) {
+                s.append(formatColors(Profile.format_HH_MM(hour * 60 * 60), val1, val2, DecimalFormat("0.0"), resourceHelper.gs(R.string.profile_carbs_per_unit)))
+                s.append("<br>")
+            }
+            prev1 = val1
+            prev2 = val2
+        }
+        return HtmlHelper.fromHtml(s.toString())
+    }
+
+    private fun isfs(profile1: Profile, profile2: Profile): Spanned {
+        var prev1 = 0.0
+        var prev2 = 0.0
+        val s = StringBuilder()
+        for (hour in 0..23) {
+            val val1 = Profile.fromMgdlToUnits(profile1.getIsfMgdlTimeFromMidnight(hour * 60 * 60), profile1.units)
+            val val2 = Profile.fromMgdlToUnits(profile2.getIsfMgdlTimeFromMidnight(hour * 60 * 60), profile1.units)
+            if (val1 != prev1 || val2 != prev2) {
+                s.append(formatColors(Profile.format_HH_MM(hour * 60 * 60), val1, val2, DecimalFormat("0.0"), resourceHelper.gs(R.string.profile_carbs_per_unit)))
+                s.append("<br>")
+            }
+            prev1 = val1
+            prev2 = val2
+        }
+        return HtmlHelper.fromHtml(s.toString())
+    }
 }
diff --git a/core/src/main/java/info/nightscout/androidaps/plugins/treatments/fragments/ProfileGraph.kt b/core/src/main/java/info/nightscout/androidaps/plugins/treatments/fragments/ProfileGraph.kt
index a48f5e4118..8dd922ca60 100644
--- a/core/src/main/java/info/nightscout/androidaps/plugins/treatments/fragments/ProfileGraph.kt
+++ b/core/src/main/java/info/nightscout/androidaps/plugins/treatments/fragments/ProfileGraph.kt
@@ -1,13 +1,16 @@
 package info.nightscout.androidaps.plugins.treatments.fragments
 
 import android.content.Context
+import android.graphics.Color
 import android.util.AttributeSet
 import com.jjoe64.graphview.GraphView
 import com.jjoe64.graphview.series.DataPoint
 import com.jjoe64.graphview.series.LineGraphSeries
+import info.nightscout.androidaps.core.R
 import info.nightscout.androidaps.data.Profile
 import info.nightscout.androidaps.utils.Round
 import java.util.*
+import kotlin.math.max
 
 class ProfileGraph : GraphView {
 
@@ -21,7 +24,7 @@ class ProfileGraph : GraphView {
             basalArray.add(DataPoint(hour.toDouble(), profile.getBasalTimeFromMidnight(hour * 60 * 60)))
             basalArray.add(DataPoint((hour + 1).toDouble(), profile.getBasalTimeFromMidnight(hour * 60 * 60)))
         }
-        val basalDataPoints: Array<DataPoint> = Array(basalArray.size){ i-> basalArray[i]}
+        val basalDataPoints: Array<DataPoint> = Array(basalArray.size) { i -> basalArray[i] }
         val basalSeries: LineGraphSeries<DataPoint> = LineGraphSeries(basalDataPoints)
         addSeries(basalSeries)
         basalSeries.thickness = 8
@@ -35,4 +38,40 @@ class ProfileGraph : GraphView {
         gridLabelRenderer.numHorizontalLabels = 13
         gridLabelRenderer.verticalLabelsColor = basalSeries.color
     }
+
+    fun show(profile1: Profile, profile2: Profile) {
+        removeAllSeries()
+
+        // profile 1
+        val basalArray1: MutableList<DataPoint> = ArrayList()
+        for (hour in 0..23) {
+            basalArray1.add(DataPoint(hour.toDouble(), profile1.getBasalTimeFromMidnight(hour * 60 * 60)))
+            basalArray1.add(DataPoint((hour + 1).toDouble(), profile1.getBasalTimeFromMidnight(hour * 60 * 60)))
+        }
+        val basalSeries1: LineGraphSeries<DataPoint> = LineGraphSeries(Array(basalArray1.size) { i -> basalArray1[i] })
+        addSeries(basalSeries1)
+        basalSeries1.thickness = 8
+        basalSeries1.isDrawBackground = true
+
+        // profile 2
+        val basalArray2: MutableList<DataPoint> = ArrayList()
+        for (hour in 0..23) {
+            basalArray2.add(DataPoint(hour.toDouble(), profile2.getBasalTimeFromMidnight(hour * 60 * 60)))
+            basalArray2.add(DataPoint((hour + 1).toDouble(), profile2.getBasalTimeFromMidnight(hour * 60 * 60)))
+        }
+        val basalSeries2: LineGraphSeries<DataPoint> = LineGraphSeries(Array(basalArray2.size) { i -> basalArray2[i] })
+        addSeries(basalSeries2)
+        basalSeries2.thickness = 8
+        basalSeries2.isDrawBackground = false
+        basalSeries2.color = context.getColor(R.color.examinedProfile)
+        basalSeries2.backgroundColor = context.getColor(R.color.examinedProfile)
+
+        viewport.isXAxisBoundsManual = true
+        viewport.setMinX(0.0)
+        viewport.setMaxX(24.0)
+        viewport.isYAxisBoundsManual = true
+        viewport.setMinY(0.0)
+        viewport.setMaxY(Round.ceilTo(max(profile1.maxDailyBasal, profile2.maxDailyBasal) * 1.1, 0.5))
+        gridLabelRenderer.numHorizontalLabels = 13
+    }
 }
\ No newline at end of file
diff --git a/core/src/main/res/values/colors.xml b/core/src/main/res/values/colors.xml
index 27e0e33010..d6def91fd7 100644
--- a/core/src/main/res/values/colors.xml
+++ b/core/src/main/res/values/colors.xml
@@ -23,6 +23,7 @@
     <color name="warningAlertHeaderText">#FF000000</color>
     <color name="errorAlertBackground">#FFFF5555</color>
     <color name="errorAlertHeaderText">#FF000000</color>
+    <color name="examinedProfile">#FFFF5555</color>
 
     <!--    Treatment-->
     <color name="tempbasal">#C803A9F4</color>