<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0407</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2023-06-06</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001773383</issuerCik>
        <issuerName>Dynatrace, Inc.</issuerName>
        <issuerTradingSymbol>DT</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001813487</rptOwnerCik>
            <rptOwnerName>THOMA BRAVO UGP, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O THOMA BRAVO, L.P.</rptOwnerStreet1>
            <rptOwnerStreet2>110 N. WACKER DRIVE, 32ND FLOOR</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60606</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001783009</rptOwnerCik>
            <rptOwnerName>THOMA BRAVO PARTNERS X, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O THOMA BRAVO, L.P.</rptOwnerStreet1>
            <rptOwnerStreet2>110 N. WACKER DRIVE, 32ND FLOOR</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60606</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001722232</rptOwnerCik>
            <rptOwnerName>THOMA BRAVO PARTNERS XI, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O THOMA BRAVO, L.P.</rptOwnerStreet1>
            <rptOwnerStreet2>110 N. WACKER DRIVE, 32ND FLOOR</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60606</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001537211</rptOwnerCik>
            <rptOwnerName>THOMA BRAVO FUND X, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O THOMA BRAVO, L.P.</rptOwnerStreet1>
            <rptOwnerStreet2>110 N. WACKER DRIVE, 32ND FLOOR</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60606</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001537212</rptOwnerCik>
            <rptOwnerName>THOMA BRAVO FUND X-A, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O THOMA BRAVO, L.P.</rptOwnerStreet1>
            <rptOwnerStreet2>110 N. WACKER DRIVE, 32ND FLOOR</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60606</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001579904</rptOwnerCik>
            <rptOwnerName>THOMA BRAVO SPECIAL OPPORTUNITIES FUND I, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O THOMA BRAVO, L.P.</rptOwnerStreet1>
            <rptOwnerStreet2>110 N. WACKER DRIVE, 32ND FLOOR</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60606</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001783011</rptOwnerCik>
            <rptOwnerName>THOMA BRAVO SPECIAL OPPORTUNITIES FUND I AIV, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O THOMA BRAVO, L.P.</rptOwnerStreet1>
            <rptOwnerStreet2>110 N. WACKER DRIVE, 32ND FLOOR</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60606</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001606286</rptOwnerCik>
            <rptOwnerName>THOMA BRAVO FUND XI, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O THOMA BRAVO, L.P.</rptOwnerStreet1>
            <rptOwnerStreet2>110 N. WACKER DRIVE, 32ND FLOOR</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60606</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001606287</rptOwnerCik>
            <rptOwnerName>THOMA BRAVO FUND XI-A, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O THOMA BRAVO, L.P.</rptOwnerStreet1>
            <rptOwnerStreet2>110 N. WACKER DRIVE, 32ND FLOOR</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60606</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001606288</rptOwnerCik>
            <rptOwnerName>THOMA BRAVO EXECUTIVE FUND XI, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O THOMA BRAVO, L.P.</rptOwnerStreet1>
            <rptOwnerStreet2>110 N. WACKER DRIVE, 32ND FLOOR</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60606</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2023-06-06</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>17856400</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>51.85</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>51668370</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F3"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">On June 6, 2023, the Reporting Persons sold an aggregate of 17,856,400 shares of the Issuer's Common Stock, par value $0.001 per share, pursuant to Rule 144 under the Securities Act of 1933, as amended.</footnote>
        <footnote id="F2">Consists of 5,667,645 shares held directly by Thoma Bravo Fund X, L.P. (&quot;TB Fund X&quot;), 1,239,754 shares held directly by Thoma Bravo Fund X-A, L.P. (&quot;TB Fund X-A&quot;), 26,695,807 shares held directly by Thoma Bravo Fund XI, L.P. (&quot;TB Fund XI&quot;), 13,407,291 shares held directly by Thoma Bravo Fund XI-A, L.P. (&quot;TB Fund XI-A&quot;), 588,934 shares held directly by Thoma Bravo Executive Fund XI, L.P. (&quot;TB Exec Fund&quot;), 486,288 shares held directly by Thoma Bravo Special Opportunities Fund I, L.P. (&quot;TB SOF&quot;) and 3,582,651 shares held directly by Thoma Bravo Special Opportunities Fund I AIV, L.P. (&quot;TB SOF AIV&quot;).</footnote>
        <footnote id="F3">Thoma Bravo Partners X, L.P. (&quot;TB Partners X&quot;) is the general partner of each of TB Fund X, TB Fund X-A, TB SOF and TB SOF AIV. Thoma Bravo Partners XI, L.P. (&quot;TB Partners XI&quot;) is the general partner of each of TB Fund XI, TB Fund XI-A and TB Exec Fund. Thoma Bravo UGP, LLC is the ultimate managing member of TB Partners X and TB Partners XI. By virtue of the relationships described in this footnote, Thoma Bravo UGP, LLC may be deemed to exercise voting and dispositive power with respect to the shares held by TB Fund X, TB Fund X-A, TB SOF, TB SOF AIV, TB Fund XI, TB Fund XI-A and TB Exec Fund. Each of TB Partners X, TB Partners XI and Thoma Bravo UGP, LLC disclaims beneficial ownership of the shares owned by TB Fund X, TB Fund X-A, TB SOF, TB SOF AIV, TB Fund XI, TB Fund XI-A and TB Exec Fund except to the extent of its pecuniary interest therein.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Seth Boro, Managing Partner of Thoma Bravo UGP, LLC</signatureName>
        <signatureDate>2023-06-07</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Seth Boro, Managing Partner of Thoma Bravo Partners X, L.P.</signatureName>
        <signatureDate>2023-06-07</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Seth Boro, Managing Partner of Thoma Bravo Partners XI, L.P.</signatureName>
        <signatureDate>2023-06-07</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Seth Boro, Managing Partner of Thoma Bravo Partners X, L.P., the general partner of Thoma Bravo Fund X, L.P.</signatureName>
        <signatureDate>2023-06-07</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Seth Boro, Managing Partner of Thoma Bravo Partners X, L.P., the general partner of Thoma Bravo Fund X-A, L.P.</signatureName>
        <signatureDate>2023-06-07</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Seth Boro, Managing Partner of Thoma Bravo Partners X, L.P., the general partner of Thoma Bravo Special Opportunities Fund I, L.P.</signatureName>
        <signatureDate>2023-06-07</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Seth Boro, Managing Partner of Thoma Bravo Partners X, L.P., the general partner of Thoma Bravo Special Opportunities Fund I AIV, L.P.</signatureName>
        <signatureDate>2023-06-07</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Seth Boro, Managing Partner of Thoma Bravo Partners XI, L.P., the general partner of Thoma Bravo Fund XI, L.P.</signatureName>
        <signatureDate>2023-06-07</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Seth Boro, Managing Partner of Thoma Bravo Partners XI, L.P., the general partner of Thoma Bravo Fund XI-A, L.P.</signatureName>
        <signatureDate>2023-06-07</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Seth Boro, Managing Partner of Thoma Bravo Partners XI, L.P., the general partner of Thoma Bravo Executive Fund XI, L.P.</signatureName>
        <signatureDate>2023-06-07</signatureDate>
    </ownerSignature>
</ownershipDocument>
