content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
    <!-- Generated by Workiva -->
    <headerData>
      <submissionType>144</submissionType>
      <filerInfo>
        <filer>
          <filerCredentials>
            <cik>0001837069</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0001810806</issuerCik>
        <issuerName>Unity Software Inc</issuerName>
        <secFileNumber>001-39497</secFileNumber>
        <issuerAddress>
          <com:street1>30 -3rd Street</com:street1>
          <com:city>San Francisco</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>94103</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>415-539-3162</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Elizabeth Osterman</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Affiliate</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>J.P. Morgan Securities LLC</name>
          <address>
            <com:street1>390 Madison Avenue - 6th Floor</com:street1>
            <com:city>New York</com:city>
            <com:stateOrCountry>NY</com:stateOrCountry>
            <com:zipCode>10017</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>5000</noOfUnitsSold>
        <aggregateMarketValue>196450</aggregateMarketValue>
        <noOfUnitsOutstanding>383457326</noOfUnitsOutstanding>
        <approxSaleDate>09/06/2023</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>09/06/2023</acquiredDate>
        <natureOfAcquisitionTransaction>Option Exercise</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>5000</amountOfSecuritiesAcquired>
        <paymentDate>09/06/2023</paymentDate>
        <natureOfPayment>Cash</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <remarks>The shares on this filing are shares expected to be sold in the next 3 months.</remarks>
      <noticeSignature>
        <noticeDate>09/06/2023</noticeDate>
        <planAdoptionDates>
          <planAdoptionDate>05/19/2023</planAdoptionDate>
        </planAdoptionDates>
        <signature>/s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Elizabeth Osterman</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 3019}]
text: 144
  0001837069
  XXXXXXXX
  LIVE
  0001810806
  Unity Software Inc
  001-39497
  30 -3rd Street
  San Francisco
  CA
  94103
  415-539-3162
  Elizabeth Osterman
  Affiliate
  Common
  J.P. Morgan Securities LLC
  390 Madison Avenue - 6th Floor
  New York
  NY
  10017
  5000
  196450
  383457326
  09/06/2023
  NYSE
  Common
  09/06/2023
  Option Exercise
  Issuer
  N
  5000
  09/06/2023
  Cash
  Y
  The shares on this filing are shares expected to be sold in the next 3 months.
  09/06/2023
  05/19/2023
  /s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Elizabeth Osterman