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<ownershipDocument>

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    <periodOfReport>2025-12-23</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001801661</issuerCik>
        <issuerName>Skillz Inc.</issuerName>
        <issuerTradingSymbol>SKLZ</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001836621</rptOwnerCik>
            <rptOwnerName>Paradise Andrew</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O SKILLZ INC.</rptOwnerStreet1>
            <rptOwnerStreet2>6625 BADURA AVENUE</rptOwnerStreet2>
            <rptOwnerCity>LAS VEGAS</rptOwnerCity>
            <rptOwnerState>NV</rptOwnerState>
            <rptOwnerZipCode>89118</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Executive Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

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                </transactionShares>
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        <nonDerivativeTransaction>
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                <value>Class A common stock</value>
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            <transactionDate>
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                <equitySwapInvolved>0</equitySwapInvolved>
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    <derivativeTable>
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            <transactionDate>
                <value>2026-01-08</value>
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                <transactionCode>M</transactionCode>
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            <transactionAmounts>
                <transactionShares>
                    <value>90576</value>
                    <footnoteId id="F5"/>
                    <footnoteId id="F6"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
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            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F7"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F7"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A common stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>90576</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>362313</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F4"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2026-01-08</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>23810</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F8"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F8"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A common stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>23810</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>190474</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
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        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Represents shares withheld for payment of withholding taxes in connection with vesting of previously reported restricted stock unit awards.</footnote>
        <footnote id="F2">The restricted stock units settled in Class A Common stock of the Company on January 8, 2026.</footnote>
        <footnote id="F3">Represents shares withheld for payment of withholding taxes in connection with vesting of restricted stock unit awards</footnote>
        <footnote id="F4">Each restricted stock unit represents a contingent right to receive one share of the Company's Class A common stock.</footnote>
        <footnote id="F5">On June 23, 2023 (the &quot;Effective Date&quot;), the Class A common stock of the Company underwent a 1-for-20 reverse stock split (the &quot;Reverse Stock Split&quot;). All amounts of securities listed herein have been adjusted to reflect the effect of the Reverse Stock Split (even if the listed transaction occurred before the Effective Date of the Reverse Stock Split).</footnote>
        <footnote id="F6">The grant of restricted stock units was previously reported as covering 28,984,577 shares, of which 9,057,780 remained unvested prior to the reported transaction (prior to the Reverse Stock Split, which is equal to 452,889 shares post Reverse Stock Split). Following the reported transactions, 362,313 shares remained unvested (as adjusted for the Company's Reverse Stock Split).</footnote>
        <footnote id="F7">90,576 restricted stock units reported on this report vested on January 1, 2026 and settled on January 8, 2026. The remainder will vest in substantially equal quarterly installments thereafter over the following twelve calendar quarters.</footnote>
        <footnote id="F8">23,810 restricted stock units reported on this report vested on January 1, 2026 and settled on January 8, 2026. The remainder will vest in substantially equal quarterly installments thereafter over the following twelve calendar quarters.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Nikul D. Patel, Attorney-in-Fact</signatureName>
        <signatureDate>2026-01-09</signatureDate>
    </ownerSignature>
</ownershipDocument>
