diff --git a/functions/index.js b/functions/index.js
index bd4dbea..8dfff8c 100644
--- a/functions/index.js
+++ b/functions/index.js
@@ -140,10 +140,11 @@ exports.getGroupMembers = functions.https.onCall((data, context) => {
 /**
  * Creates new progress document.
  * @param {object} data The data passed to the function.
+ * @param {boolean} data.ignoreCaps Whether capitalisation of answers should matter during the test.
+ * @param {boolean} data.limit The maximum number of lives/questions for the test.
+ * @param {boolean} data.mode The mode to be tested in. Valid options are "questions" and "lives".
  * @param {array} data.sets An array of IDs of the desired sets.
  * @param {boolean} data.switch_language Whether or not the languages should be reversed.
- * @param {boolean} data.mode The mode to be tested in. Valid options are "questions" and "lives".
- * @param {boolean} data.limit The maximum number of lives/questions for the test.
  * @return {string} The ID of the created progress document.
 */
 exports.createProgress = functions.https.onCall((data, context) => {
@@ -237,6 +238,7 @@ exports.createProgress = functions.https.onCall((data, context) => {
 			setIds: setIds,
 			set_titles: setIds.map((setId) => setTitlesDict[setId]),
 			typo: false,
+			ignoreCaps: data.ignoreCaps,
 		}
 
 		return {
@@ -462,9 +464,14 @@ function arraysHaveSameMembers(arr1, arr2) {
  * @param {string} item The term/definition to remove the characters that should be ignored from.
  * @return {string} The original string with the unwanted characters removed.
  */
-function cleanseVocabString(item) {
+function cleanseVocabString(item, ignoreCaps=false) {
 	const chars = /[\p{P}\p{S} ]+/ug;
-	return item.replace(chars, "");
+	const cleansed = item.replace(chars, "");
+	if (ignoreCaps) {
+		return cleansed.toLowerCase();
+	} else {
+		return cleansed;
+	}
 }
 
 /**
@@ -541,15 +548,16 @@ exports.processAnswer = functions.https.onCall((data, context) => {
 					if (index !== -1) {
 						cleansedDoneSplitCorrectAnswers.push(
 							cleanseVocabString(
-								notDoneSplitCorrectAnswers.splice(index, 1)[0]
+								notDoneSplitCorrectAnswers.splice(index, 1)[0],
+								docData.ignoreCaps
 							)
 						);
 					}
 				});
-				const cleansedNotDoneSplitCorrectAnswers = notDoneSplitCorrectAnswers.map((answer) => cleanseVocabString(answer));
+				const cleansedNotDoneSplitCorrectAnswers = notDoneSplitCorrectAnswers.map((answer) => cleanseVocabString(answer, docData.ignoreCaps));
 
 				const cleansedSplitCorrectAnswers = cleansedNotDoneSplitCorrectAnswers.concat(cleansedDoneSplitCorrectAnswers);
-				const cleansedInputAnswer = cleanseVocabString(inputAnswer);
+				const cleansedInputAnswer = cleanseVocabString(inputAnswer, docData.ignoreCaps);
 
 				let isCorrectAnswer = false;
 				let correctAnswerIndex;
diff --git a/src/ClassicTestStart.js b/src/ClassicTestStart.js
index 41172f7..70d2abc 100644
--- a/src/ClassicTestStart.js
+++ b/src/ClassicTestStart.js
@@ -61,6 +61,15 @@ export default function ClassicTestStart(props) {
 					<span>Switch language</span>
 				</label>
 
+				<label>
+					<Checkbox
+						checked={props.ignoreCaps}
+						onChange={props.handleIgnoreCapsChange}
+						inputProps={{ 'aria-label': 'checkbox' }}
+					/>
+					<span>Ignore capitals</span>
+				</label>
+
 				<Button
 					onClick={() => props.startTest("questions")}
 					icon={<ArrowForwardRoundedIcon />}
diff --git a/src/LivesTestStart.js b/src/LivesTestStart.js
index 81a260d..0fb9188 100644
--- a/src/LivesTestStart.js
+++ b/src/LivesTestStart.js
@@ -61,6 +61,15 @@ export default function LivesTestStart(props) {
 					<span>Switch language</span>
 				</label>
 
+				<label>
+					<Checkbox
+						checked={props.ignoreCaps}
+						onChange={props.handleIgnoreCapsChange}
+						inputProps={{ 'aria-label': 'checkbox' }}
+					/>
+					<span>Ignore capitals</span>
+				</label>
+
 				<Button
 					onClick={() => props.startTest("lives")}
 					icon={<ArrowForwardRoundedIcon />}
diff --git a/src/LoggedInHome.js b/src/LoggedInHome.js
index 45c9954..4274f8e 100644
--- a/src/LoggedInHome.js
+++ b/src/LoggedInHome.js
@@ -72,6 +72,7 @@ export default withRouter(class LoggedInHome extends React.Component {
 			showLivesTestStart: false,
 			sliderValue: 1,
 			switchLanguage: false,
+			ignoreCaps: false,
 			totalTestQuestions: 1,
 			pendingDeletions: {},
 		};
@@ -199,6 +200,7 @@ export default withRouter(class LoggedInHome extends React.Component {
 				switch_language: this.state.switchLanguage,
 				mode: mode,
 				limit: this.state.sliderValue,
+				ignoreCaps: this.state.ignoreCaps,
 			}).then((result) => {
 				const progressId = result.data;
 				this.stopLoading();
@@ -351,6 +353,12 @@ export default withRouter(class LoggedInHome extends React.Component {
 		});
 	}
 
+	handleIgnoreCapsChange = (event) => {
+		this.setState({
+			ignoreCaps: event.target.checked,
+		});
+	}
+
 	render() {
 		return (
 			<div>
@@ -570,7 +578,9 @@ export default withRouter(class LoggedInHome extends React.Component {
 						sliderValue={this.state.sliderValue}
 						onSliderChange={this.changeSliderValue}
 						switchLanguage={this.state.switchLanguage}
+						ignoreCaps={this.state.ignoreCaps}
 						handleSwitchLanguageChange={this.handleSwitchLanguageChange}
+						handleIgnoreCapsChange={this.handleIgnoreCapsChange}
 						loading={this.state.loading}
 					/>
 				}
@@ -583,7 +593,9 @@ export default withRouter(class LoggedInHome extends React.Component {
 						sliderValue={this.state.sliderValue}
 						onSliderChange={this.changeSliderValue}
 						switchLanguage={this.state.switchLanguage}
+						ignoreCaps={this.state.ignoreCaps}
 						handleSwitchLanguageChange={this.handleSwitchLanguageChange}
+						handleIgnoreCapsChange={this.handleIgnoreCapsChange}
 						loading={this.state.loading}
 					/>
 				}
diff --git a/src/Progress.js b/src/Progress.js
index b48c1c6..f720a7b 100644
--- a/src/Progress.js
+++ b/src/Progress.js
@@ -58,6 +58,7 @@ export default withRouter(class Progress extends React.Component {
 		pageLoaded: false,
 		startTime: null,
 		sound: false,
+		ignoreCaps: false,
 	}
 
 	constructor(props) {
diff --git a/src/SetPage.js b/src/SetPage.js
index 0ca91eb..22eec94 100644
--- a/src/SetPage.js
+++ b/src/SetPage.js
@@ -53,6 +53,7 @@ export default withRouter(class SetPage extends React.Component {
 			showLivesTestStart: false,
 			sliderValue: 1,
 			switchLanguage: false,
+			ignoreCaps: false,
 			totalTestQuestions: 1,
 		};
 
@@ -134,6 +135,7 @@ export default withRouter(class SetPage extends React.Component {
 				switch_language: this.state.switchLanguage,
 				mode: mode,
 				limit: this.state.sliderValue,
+				ignoreCaps: this.state.ignoreCaps,
 			}).then((result) => {
 				const progressId = result.data;
 				this.stopLoading();
@@ -332,6 +334,12 @@ export default withRouter(class SetPage extends React.Component {
 		});
 	}
 
+	handleIgnoreCapsChange = (event) => {
+		this.setState({
+			ignoreCaps: event.target.checked,
+		});
+	}
+
 	render() {
 		return (
 			<div>
@@ -479,7 +487,9 @@ export default withRouter(class SetPage extends React.Component {
 								sliderValue={this.state.sliderValue}
 								onSliderChange={this.changeSliderValue}
 								switchLanguage={this.state.switchLanguage}
+								ignoreCaps={this.state.ignoreCaps}
 								handleSwitchLanguageChange={this.handleSwitchLanguageChange}
+								handleIgnoreCapsChange={this.handleIgnoreCapsChange}
 								loading={this.state.loading}
 								disabled={!this.state.canStartTest}
 							/>
@@ -493,7 +503,9 @@ export default withRouter(class SetPage extends React.Component {
 								sliderValue={this.state.sliderValue}
 								onSliderChange={this.changeSliderValue}
 								switchLanguage={this.state.switchLanguage}
+								ignoreCaps={this.state.ignoreCaps}
 								handleSwitchLanguageChange={this.handleSwitchLanguageChange}
+								handleIgnoreCapsChange={this.handleIgnoreCapsChange}
 								loading={this.state.loading}
 								disabled={!this.state.canStartTest}
 							/>