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

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2015-10-05</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001641489</issuerCik>
        <issuerName>vTv Therapeutics Inc.</issuerName>
        <issuerTradingSymbol>VTVT</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001275756</rptOwnerCik>
            <rptOwnerName>SAVAS PAUL G</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O VTV THERAPEUTICS INC.</rptOwnerStreet1>
            <rptOwnerStreet2>4170 MENDENHALL OAKS PKWY</rptOwnerStreet2>
            <rptOwnerCity>HIGH POINT</rptOwnerCity>
            <rptOwnerState>NC</rptOwnerState>
            <rptOwnerZipCode>27265</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Nonvoting Common Units and Class B common stock</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F2"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2015-10-05</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F3"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>6522</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A common stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>6522</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>6522</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Shares of Class B common stock of the Issuer (&quot;Class B Common Stock&quot;) have one vote per share but represent no economic interests and are issued in an equal amount to the number of Nonvoting Common Units of vTv Therapeutics LLC (&quot;vTv Units&quot;) held.</footnote>
        <footnote id="F2">Pursuant to the terms of the Exchange Agreement, dated as of July 29, 2015 (the &quot;Exchange Agreement&quot;), by and among the Issuer, vTv Therapeutics LLC and M&amp;F TTP Holdings LLC, as successor-in-interest to vTv Therapeutics Holdings LLC (&quot;Holdings&quot;), vTv Units, together with a corresponding number of shares of Class B Common Stock, may be exchanged for (i) Class A common stock of the Issuer (&quot;Class A Common Stock&quot;), which have one vote per share and represent economic interests, on a one-for-one basis or (ii) cash (based on the market price of the shares of Class A Common Stock), at the option of the Issuer. The exchange rights under the Exchange Agreement do not expire.</footnote>
        <footnote id="F3">Pursuant to a Plan of Liquidation and Dissolution of Holdings, dated as of October 5, 2015, Holdings, of which the reporting person is a member and the sole manager, made a pro rata liquidating distribution (the &quot;Distribution&quot;) of all of the shares of Class B Common Stock and corresponding vTv Units that it held directly to its members, including the reporting person.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Paul G. Savas</signatureName>
        <signatureDate>2015-10-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
