diff --git a/components/Home.js b/components/Home.js
index 3a65aed..507024d 100644
--- a/components/Home.js
+++ b/components/Home.js
@@ -12,14 +12,16 @@ import Button from './common/button'
 
 import cycleModule from '../lib/cycle'
 import { getFertilityStatusForDay } from '../lib/sympto-adapter'
-import { determinePredictionText, formatWithOrdinalSuffix } from './helpers/home'
+import {
+  determinePredictionText,
+  formatWithOrdinalSuffix,
+} from './helpers/home'
 
 import { Colors, Fonts, Sizes, Spacing } from '../styles'
 import { LocalDate } from 'js-joda'
 import { useTranslation } from 'react-i18next'
 
 const Home = ({ navigate, setDate }) => {
-
   const { t } = useTranslation()
 
   function navigateToCycleDayView() {
@@ -34,22 +36,26 @@ const Home = ({ navigate, setDate }) => {
     getFertilityStatusForDay(todayDateString)
   const prediction = determinePredictionText(getPredictedMenses(), t)
 
-  const cycleDayText = cycleDayNumber ? formatWithOrdinalSuffix(cycleDayNumber) : ''
+  const cycleDayText = cycleDayNumber
+    ? formatWithOrdinalSuffix(cycleDayNumber)
+    : ''
 
   return (
     <ScrollView
       style={styles.container}
       contentContainerStyle={styles.contentContainer}
     >
-      <AppText style={styles.title}>{moment().format("MMM Do YYYY")}</AppText>
+      <AppText style={styles.title}>{moment().format('MMM Do YYYY')}</AppText>
 
-      {cycleDayNumber &&
+      {cycleDayNumber && (
         <View style={styles.line}>
           <AppText style={styles.whiteSubtitle}>{cycleDayText}</AppText>
-          <AppText style={styles.turquoiseText}>{t('labels.home.cycleDay')}</AppText>
+          <AppText style={styles.turquoiseText}>
+            {t('labels.home.cycleDay')}
+          </AppText>
         </View>
-      }
-      {phase &&
+      )}
+      {phase && (
         <View style={styles.line}>
           <AppText style={styles.whiteSubtitle}>
             {formatWithOrdinalSuffix(phase)}
@@ -60,7 +66,7 @@ const Home = ({ navigate, setDate }) => {
           <AppText style={styles.turquoiseText}>{status}</AppText>
           <Asterisk />
         </View>
-      }
+      )}
       <View style={styles.line}>
         <AppText style={styles.turquoiseText}>{prediction}</AppText>
       </View>
@@ -128,28 +134,25 @@ const styles = StyleSheet.create({
   greyText: {
     color: Colors.greyLight,
     paddingLeft: Spacing.base,
-  }
+  },
 })
 
 const mapStateToProps = (state) => {
-  return ({
+  return {
     date: getDate(state),
-  })
+  }
 }
 
 const mapDispatchToProps = (dispatch) => {
-  return ({
+  return {
     navigate: (page) => dispatch(navigate(page)),
     setDate: (date) => dispatch(setDate(date)),
-  })
+  }
 }
 
 Home.propTypes = {
   navigate: PropTypes.func,
-  setDate: PropTypes.func
+  setDate: PropTypes.func,
 }
 
-export default connect(
-  mapStateToProps,
-  mapDispatchToProps,
-)(Home)
+export default connect(mapStateToProps, mapDispatchToProps)(Home)
diff --git a/components/helpers/chart.js b/components/helpers/chart.js
index 0a68a1b..73b1408 100644
--- a/components/helpers/chart.js
+++ b/components/helpers/chart.js
@@ -45,7 +45,6 @@ export function getTickList(columnHeight) {
   const tickHeight = columnHeight / numberOfTicks
 
   return getTickPositions(columnHeight).map((tickPosition, i) => {
-
     const tick = scaleMax - i * unit
     const isBold = Number.isInteger(tick) ? true : false
     const label = tick.toFixed(1)
@@ -56,14 +55,14 @@ export function getTickList(columnHeight) {
 
     if (unit === 0.1) {
       // show label with step 0.2
-      shouldShowLabel = !(label * 10 % 2)
+      shouldShowLabel = !((label * 10) % 2)
     } else {
       // show label with step 0.5
-      shouldShowLabel = !(label * 10 % 5)
+      shouldShowLabel = !((label * 10) % 5)
     }
 
     // don't show label, if first or last tick
-    if ( i === 0 || i === (numberOfTicks - 1) ) {
+    if (i === 0 || i === numberOfTicks - 1) {
       shouldShowLabel = false
     }
 
@@ -72,7 +71,7 @@ export function getTickList(columnHeight) {
       label,
       isBold,
       shouldShowLabel,
-      tickHeight
+      tickHeight,
     }
   })
 }
@@ -84,17 +83,17 @@ export function isSymptomDataComplete(symptom, dateString) {
   const symptomData = cycleDayData[symptom]
 
   const dataCompletenessCheck = {
-    'cervix': () => {
+    cervix: () => {
       const { opening, firmness } = symptomData
-      return (opening !== null) && (firmness !== null)
+      return opening !== null && firmness !== null
     },
-    'mucus': () => {
+    mucus: () => {
       const { feeling, texture } = symptomData
-      return (feeling !== null) && (texture !== null)
+      return feeling !== null && texture !== null
     },
-    'default': () => {
+    default: () => {
       return true
-    }
+    },
   }
   return (dataCompletenessCheck[symptom] || dataCompletenessCheck['default'])()
 }
@@ -104,7 +103,7 @@ function getInfoForNeighborColumns(dateString, columnHeight) {
     rightY: null,
     rightTemperatureExclude: null,
     leftY: null,
-    leftTemperatureExclude: null
+    leftTemperatureExclude: null,
   }
   const target = LocalDate.parse(dateString)
   const dayBefore = target.minusDays(1).toString()
@@ -127,53 +126,57 @@ function getInfoForNeighborColumns(dateString, columnHeight) {
 export function getTemperatureProps(symptomData, columnHeight, dateString) {
   const extractedData = {}
   const { value, exclude } = symptomData
-  const neighborTemperatureGraphPoints =
-    getInfoForNeighborColumns(dateString, columnHeight)
+  const neighborTemperatureGraphPoints = getInfoForNeighborColumns(
+    dateString,
+    columnHeight
+  )
 
   for (const key in neighborTemperatureGraphPoints) {
     extractedData[key] = neighborTemperatureGraphPoints[key]
   }
-  return Object.assign({
-    value,
-    y: normalizeToScale(value, columnHeight),
-    temperatureExclude: exclude,
-  }, extractedData)
+  return Object.assign(
+    {
+      value,
+      y: normalizeToScale(value, columnHeight),
+      temperatureExclude: exclude,
+    },
+    extractedData
+  )
 }
 
 export const symptomColorMethods = {
-  'mucus': (symptomData) => {
+  mucus: (symptomData) => {
     const { feeling, texture } = symptomData
     const colorIndex = feeling + texture
     return colorIndex
   },
-  'cervix': (symptomData) => {
+  cervix: (symptomData) => {
     const { opening, firmness } = symptomData
     const isDataComplete = opening !== null && firmness !== null
-    const isClosedAndHard =
-      isDataComplete &&
-      (opening === 0 && firmness === 0)
+    const isClosedAndHard = isDataComplete && opening === 0 && firmness === 0
     const colorIndex = isClosedAndHard ? 0 : 2
     return colorIndex
   },
-  'sex': (symptomData) => {
+  sex: (symptomData) => {
     const { solo, partner } = symptomData
-    const colorIndex = (solo !== null && partner !== null) ?
-      (solo + 2 * partner - 1) : 0
+    const colorIndex =
+      solo !== null && partner !== null ? solo + 2 * partner - 1 : 0
     return colorIndex
   },
-  'bleeding': (symptomData) => {
+  bleeding: (symptomData) => {
     const { value } = symptomData
     const colorIndex = value
     return colorIndex
   },
-  'desire': (symptomData) => {
+  desire: (symptomData) => {
     const { value } = symptomData
     const colorIndex = value
     return colorIndex
   },
-  'default': () => { //pain, mood, note
+  default: () => {
+    //pain, mood, note
     return 0
-  }
+  },
 }
 
 // Chart helpers
@@ -188,7 +191,7 @@ export function makeColumnInfo() {
     amountOfCycleDays += 5
   }
   const localDates = getTodayAndPreviousDays(amountOfCycleDays)
-  return localDates.map(localDate => localDate.toString())
+  return localDates.map((localDate) => localDate.toString())
 }
 
 function getTodayAndPreviousDays(n) {
@@ -210,17 +213,17 @@ function getTodayAndPreviousDays(n) {
 
 export function nfpLines() {
   const cycle = {
-    status: null
+    status: null,
   }
 
   function updateCurrentCycle(dateString) {
     // for the NFP lines, we don't care about potentially extending the
     // preOvu phase, so we don't include all earlier cycles, as that is
     // an expensive db operation at the moment
-    cycle.status = getCycleStatusForDay(
-      dateString, { excludeEarlierCycles: true }
-    )
-    if(!cycle.status) {
+    cycle.status = getCycleStatusForDay(dateString, {
+      excludeEarlierCycles: true,
+    })
+    if (!cycle.status) {
       cycle.noMoreCycles = true
       return
     }
@@ -232,39 +235,34 @@ export function nfpLines() {
   }
 
   function dateIsInPeriOrPostPhase(dateString) {
-    return (
-      dateString >= cycle.status.phases.periOvulatory.start.date
-    )
+    return dateString >= cycle.status.phases.periOvulatory.start.date
   }
 
   function precededByAnotherTempValue(dateString) {
     return (
       // we are only interested in days that have a preceding
       // temp
-      Object.keys(cycle.status.phases).some(phaseName => {
-        return cycle.status.phases[phaseName].cycleDays.some(day => {
+      Object.keys(cycle.status.phases).some((phaseName) => {
+        return cycle.status.phases[phaseName].cycleDays.some((day) => {
           return day.temperature && day.date < dateString
         })
-      })
+      }) &&
       // and also a following temp, so we don't draw the line
       // longer than necessary
-      &&
-      cycle.status.phases.postOvulatory.cycleDays.some(day => {
+      cycle.status.phases.postOvulatory.cycleDays.some((day) => {
         return day.temperature && day.date > dateString
       })
     )
   }
 
   function isInTempMeasuringPhase(temperature, dateString) {
-    return (
-      temperature || precededByAnotherTempValue(dateString)
-    )
+    return temperature || precededByAnotherTempValue(dateString)
   }
 
-  return function(dateString, temperature, columnHeight) {
+  return function (dateString, temperature, columnHeight) {
     const ret = {
       drawLtlAt: null,
-      drawFhmLine: false
+      drawFhmLine: false,
     }
     if (!cycle.status && !cycle.noMoreCycles) updateCurrentCycle(dateString)
     if (cycle.noMoreCycles) return ret
diff --git a/components/helpers/home.js b/components/helpers/home.js
index 3034023..a1a697f 100644
--- a/components/helpers/home.js
+++ b/components/helpers/home.js
@@ -11,20 +11,18 @@ function getTimes(prediction) {
   const todayDate = LocalDate.now()
   const predictedBleedingStart = LocalDate.parse(prediction[0][0])
   /* the range of predicted bleeding days can be either 3 or 5 */
-  const predictedBleedingEnd =
-    LocalDate.parse(prediction[0][prediction[0].length - 1])
+  const predictedBleedingEnd = LocalDate.parse(
+    prediction[0][prediction[0].length - 1]
+  )
   const daysToEnd = todayDate.until(predictedBleedingEnd, ChronoUnit.DAYS)
   return { todayDate, predictedBleedingStart, predictedBleedingEnd, daysToEnd }
 }
 
 export function determinePredictionText(bleedingPrediction, t) {
-  if (!bleedingPrediction.length) return t('labels.bleedingPrediction.noPrediction')
-  const {
-    todayDate,
-    predictedBleedingStart,
-    predictedBleedingEnd,
-    daysToEnd
-  } = getTimes(bleedingPrediction)
+  if (!bleedingPrediction.length)
+    return t('labels.bleedingPrediction.noPrediction')
+  const { todayDate, predictedBleedingStart, predictedBleedingEnd, daysToEnd } =
+    getTimes(bleedingPrediction)
   if (todayDate.isBefore(predictedBleedingStart)) {
     return predictLabels.predictionInFuture(
       todayDate.until(predictedBleedingStart, ChronoUnit.DAYS),
@@ -48,19 +46,18 @@ export function determinePredictionText(bleedingPrediction, t) {
 
 export function getBleedingPredictionRange(prediction) {
   if (!prediction.length) return labels.unknown
-  const {
-    todayDate,
-    predictedBleedingStart,
-    predictedBleedingEnd,
-    daysToEnd
-  } = getTimes(prediction)
+  const { todayDate, predictedBleedingStart, predictedBleedingEnd, daysToEnd } =
+    getTimes(prediction)
   if (todayDate.isBefore(predictedBleedingStart)) {
-    return `${todayDate.until(predictedBleedingStart, ChronoUnit.DAYS)}-${todayDate.until(predictedBleedingEnd, ChronoUnit.DAYS)}`
+    return `${todayDate.until(
+      predictedBleedingStart,
+      ChronoUnit.DAYS
+    )}-${todayDate.until(predictedBleedingEnd, ChronoUnit.DAYS)}`
   }
   if (todayDate.isAfter(predictedBleedingEnd)) {
     return labels.unknown
   }
-  return (daysToEnd === 0 ? '0' : `0 - ${daysToEnd}`)
+  return daysToEnd === 0 ? '0' : `0 - ${daysToEnd}`
 }
 
 export function getOrdinalSuffix(num) {
diff --git a/lib/cycle.js b/lib/cycle.js
index d171398..1e5f75a 100644
--- a/lib/cycle.js
+++ b/lib/cycle.js
@@ -30,7 +30,9 @@ export default function config(opts) {
   }
 
   function getLastMensesStartForDay(targetDateString) {
-    return cycleStartsSortedByDate.find(start => start.date <= targetDateString)
+    return cycleStartsSortedByDate.find(
+      (start) => start.date <= targetDateString
+    )
   }
 
   function getCycleDayNumber(targetDateString) {
@@ -55,25 +57,25 @@ export default function config(opts) {
   }
 
   function getCyclesBefore(targetCycleStartDay) {
-    const startFromHere = cycleStartsSortedByDate.findIndex(start => {
+    const startFromHere = cycleStartsSortedByDate.findIndex((start) => {
       return start.date < targetCycleStartDay.date
     })
     if (startFromHere < 0) return null
-    return cycleStartsSortedByDate
-      .slice(startFromHere)
-      .map(start => getCycleByStartDay(start))
-      // filter the ones exceeding maxCycleLength, those are null
-      .filter(cycle => cycle)
+    return (
+      cycleStartsSortedByDate
+        .slice(startFromHere)
+        .map((start) => getCycleByStartDay(start))
+        // filter the ones exceeding maxCycleLength, those are null
+        .filter((cycle) => cycle)
+    )
   }
 
   function findIndexOfDay(day, daysSortedByDate) {
-    return daysSortedByDate.findIndex(d => d.date === day.date)
+    return daysSortedByDate.findIndex((d) => d.date === day.date)
   }
 
   function getNextCycleStartDay(startDay, cycleStartsSortedByDate) {
-    const cycleStartIndex = findIndexOfDay(
-      startDay,
-      cycleStartsSortedByDate)
+    const cycleStartIndex = findIndexOfDay(startDay, cycleStartsSortedByDate)
     return cycleStartsSortedByDate[cycleStartIndex - 1]
   }
 
@@ -82,8 +84,7 @@ export default function config(opts) {
   }
 
   function getCycleLength(startDate, endDate) {
-    return LocalDate.parse(startDate)
-      .until(LocalDate.parse(endDate), DAYS)
+    return LocalDate.parse(startDate).until(LocalDate.parse(endDate), DAYS)
   }
 
   function isValidCycle(startDate, endDate) {
@@ -109,19 +110,16 @@ export default function config(opts) {
     }
 
     if (isValidCycle(startDay.date, cycleEndDate)) {
-      const cycleStartIndex = findIndexOfDay(
-        startDay,
-        cycleDaysSortedByDate
-      )
-      return cycleDaysSortedByDate
-        .slice(cycleEndIndex, cycleStartIndex + 1)
+      const cycleStartIndex = findIndexOfDay(startDay, cycleDaysSortedByDate)
+      return cycleDaysSortedByDate.slice(cycleEndIndex, cycleStartIndex + 1)
     }
 
     return null
   }
 
   function getCycleForDay(dayOrDate, todayDate) {
-    const dateString = typeof dayOrDate === 'string' ? dayOrDate : dayOrDate.date
+    const dateString =
+      typeof dayOrDate === 'string' ? dayOrDate : dayOrDate.date
     const cycleStart = getLastMensesStartForDay(dateString)
     if (!cycleStart) return null
     return getCycleByStartDay(cycleStart, todayDate)
@@ -138,9 +136,9 @@ export default function config(opts) {
       const localDate = LocalDate.parse(cycleDay.date)
       const threshold = localDate.minusDays(maxBreakInBleeding + 1).toString()
       const bleedingDays = bleedingDaysSortedByDate
-      const index = bleedingDays.findIndex(day => day.date === cycleDay.date)
+      const index = bleedingDays.findIndex((day) => day.date === cycleDay.date)
       const candidates = bleedingDays.slice(index + 1)
-      return !candidates.some(day => {
+      return !candidates.some((day) => {
         return day.date >= threshold && !day.bleeding.exclude
       })
     }
@@ -151,9 +149,9 @@ export default function config(opts) {
   // changes
   function getMensesDaysRightAfter(cycleDay) {
     const bleedingDays = bleedingDaysSortedByDate
-      .filter(d => !d.bleeding.exclude)
+      .filter((d) => !d.bleeding.exclude)
       .reverse()
-    const firstFollowingBleedingDayIndex = bleedingDays.findIndex(day => {
+    const firstFollowingBleedingDayIndex = bleedingDays.findIndex((day) => {
       return day.date > cycleDay.date
     })
     return recurse(cycleDay, firstFollowingBleedingDayIndex, [])
@@ -179,13 +177,13 @@ export default function config(opts) {
 
   function getAllCycleLengths() {
     return cycleStartsSortedByDate
-      .map(day => LocalDate.parse(day.date))
+      .map((day) => LocalDate.parse(day.date))
       .map((cycleStart, i, startsAsLocalDates) => {
         if (i === cycleStartsSortedByDate.length - 1) return null
         const prevCycleStart = startsAsLocalDates[i + 1]
         return prevCycleStart.until(cycleStart, DAYS)
       })
-      .filter(length => length && length <= maxCycleLength)
+      .filter((length) => length && length <= maxCycleLength)
   }
 
   function getPredictedMenses() {
@@ -198,12 +196,14 @@ export default function config(opts) {
     let periodStartVariation
     if (cycleInfo.stdDeviation === null) {
       periodStartVariation = 2
-    } else if (cycleInfo.stdDeviation < 1.5) { // threshold is chosen a little arbitrarily
+    } else if (cycleInfo.stdDeviation < 1.5) {
+      // threshold is chosen a little arbitrarily
       periodStartVariation = 1
     } else {
       periodStartVariation = 2
     }
-    if (periodDistance - 5 < periodStartVariation) { // otherwise predictions overlap
+    if (periodDistance - 5 < periodStartVariation) {
+      // otherwise predictions overlap
       return []
     }
     const allMensesStarts = cycleStartsSortedByDate
@@ -222,7 +222,6 @@ export default function config(opts) {
     return predictedMenses
   }
 
-
   return {
     getCycleDayNumber,
     getCycleForDay,
diff --git a/lib/import-export/import-from-csv.js b/lib/import-export/import-from-csv.js
index 1bdc8d8..3619ad0 100644
--- a/lib/import-export/import-from-csv.js
+++ b/lib/import-export/import-from-csv.js
@@ -4,7 +4,7 @@ import {
   getSchema,
   tryToImportWithDelete,
   tryToImportWithoutDelete,
-  updateCycleStartsForAllCycleDays
+  updateCycleStartsForAllCycleDays,
 } from '../../db'
 import getColumnNamesForCsv from './get-csv-column-names'
 import { LocalDate } from 'js-joda'
@@ -12,7 +12,7 @@ import labels from '../../i18n/en/settings'
 
 export default async function importCsv(csv, deleteFirst) {
   const parseFuncs = {
-    bool: val => {
+    bool: (val) => {
       if (val.toLowerCase() === 'true') return true
       if (val.toLowerCase() === 'false') return false
       return val
@@ -20,7 +20,7 @@ export default async function importCsv(csv, deleteFirst) {
     int: parseNumberIfPossible,
     float: parseNumberIfPossible,
     double: parseNumberIfPossible,
-    string: val => val
+    string: (val) => val,
   }
 
   function parseNumberIfPossible(val) {
@@ -36,12 +36,12 @@ export default async function importCsv(csv, deleteFirst) {
     colParser: getColumnNamesForCsv().reduce((acc, colName) => {
       const path = colName.split('.')
       const dbType = getDbType(schema.CycleDay, path)
-      acc[colName] = item => {
+      acc[colName] = (item) => {
         if (item === '') return null
         return parseFuncs[dbType](item)
       }
       return acc
-    }, {})
+    }, {}),
   }
 
   const cycleDays = await csvParser(config)
@@ -62,9 +62,11 @@ export default async function importCsv(csv, deleteFirst) {
 
 function validateHeaders(headers) {
   const expectedHeaders = getColumnNamesForCsv()
-  if (!headers.every(header => {
-    return expectedHeaders.indexOf(header) > -1
-  })) {
+  if (
+    !headers.every((header) => {
+      return expectedHeaders.indexOf(header) > -1
+    })
+  ) {
     const msg = `Expected CSV column titles to be ${expectedHeaders.join()}`
     throw new Error(msg)
   }
@@ -76,7 +78,7 @@ function putNullForEmptySymptoms(data) {
   function replaceWithNullIfAllPropertiesAreNull(obj) {
     Object.keys(obj).forEach((key) => {
       if (!isObject(obj[key])) return
-      if (Object.values(obj[key]).every(val => val === null)) {
+      if (Object.values(obj[key]).every((val) => val === null)) {
         obj[key] = null
         return
       }
@@ -97,8 +99,11 @@ function throwIfFutureData(cycleDays) {
   for (const i in cycleDays) {
     const day = cycleDays[i]
     // notes are allowed for future dates but everything else isn't
-    if (day.date > today && Object.keys(day).some(symptom => symptom != 'date' && symptom != 'note')) {
+    if (
+      day.date > today &&
+      Object.keys(day).some((symptom) => symptom != 'date' && symptom != 'note')
+    ) {
       throw new Error(labels.import.errors.futureEdit)
     }
   }
-}
\ No newline at end of file
+}
diff --git a/slices/date.js b/slices/date.js
index 49dfa70..9e529e0 100644
--- a/slices/date.js
+++ b/slices/date.js
@@ -5,8 +5,8 @@ const dateSlice = createSlice({
   slice: 'date',
   initialState: LocalDate.now().toString(),
   reducers: {
-    setDate: (state, action) => action.payload
-  }
+    setDate: (state, action) => action.payload,
+  },
 })
 
 // Extract the action creators object and the reducer