<SEC-DOCUMENT>0001209191-17-045347.txt : 20170717
<SEC-HEADER>0001209191-17-045347.hdr.sgml : 20170717
<ACCEPTANCE-DATETIME>20170717162610
ACCESSION NUMBER:		0001209191-17-045347
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20170713
FILED AS OF DATE:		20170717
DATE AS OF CHANGE:		20170717

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			STAD MARC
		CENTRAL INDEX KEY:			0001646303

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37468
		FILM NUMBER:		17967774

	MAIL ADDRESS:	
		STREET 1:		ONE LETTERMAN DRIVE, BUILDING C, SUITE 3
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94129

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Dragoneer Apartment, LLC
		CENTRAL INDEX KEY:			0001646430
		STATE OF INCORPORATION:			DE

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37468
		FILM NUMBER:		17967776

	BUSINESS ADDRESS:	
		STREET 1:		ONE LETTERMAN DRIVE
		STREET 2:		BUILDING C, SUITE 3950
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94129
		BUSINESS PHONE:		415-539-3085

	MAIL ADDRESS:	
		STREET 1:		ONE LETTERMAN DRIVE
		STREET 2:		BUILDING C, SUITE 3950
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94129

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DRAGONEER GLOBAL FUND II, L.P.
		CENTRAL INDEX KEY:			0001621298
		STATE OF INCORPORATION:			E9

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37468
		FILM NUMBER:		17967775

	BUSINESS ADDRESS:	
		STREET 1:		C/O DRAGONEER INVESTMENT GROUP, LLC
		STREET 2:		ONE LETTERMAN DR., BLDG D, SUITE M500
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94129
		BUSINESS PHONE:		415-539-3085

	MAIL ADDRESS:	
		STREET 1:		C/O DRAGONEER INVESTMENT GROUP, LLC
		STREET 2:		ONE LETTERMAN DR., BLDG D, SUITE M500
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94129

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			APPFOLIO INC
		CENTRAL INDEX KEY:			0001433195
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
		IRS NUMBER:				260359894
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		50 CASTILIAN DRIVE
		CITY:			GOLETA
		STATE:			CA
		ZIP:			93117
		BUSINESS PHONE:		8053646093

	MAIL ADDRESS:	
		STREET 1:		50 CASTILIAN DRIVE
		CITY:			GOLETA
		STATE:			CA
		ZIP:			93117
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2017-07-13</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001433195</issuerCik>
        <issuerName>APPFOLIO INC</issuerName>
        <issuerTradingSymbol>APPF</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001646303</rptOwnerCik>
            <rptOwnerName>STAD MARC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ONE LETTERMAN DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2>BUILDING D, SUITE M500</rptOwnerStreet2>
            <rptOwnerCity>SAN FRANCISCO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94129</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001621298</rptOwnerCik>
            <rptOwnerName>DRAGONEER GLOBAL FUND II, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ONE LETTERMAN DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2>BUILDING D, SUITE M500</rptOwnerStreet2>
            <rptOwnerCity>SAN FRANCISCO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94129</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001646430</rptOwnerCik>
            <rptOwnerName>Dragoneer Apartment, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1 LETTERMAN DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2>BUILDING D, SUITE M500</rptOwnerStreet2>
            <rptOwnerCity>SAN FRANCISCO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94129</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2017-07-13</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>966</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>32.50</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>76655</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2017-07-13</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>19945</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>32.50</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1778326</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Refer to Footnote</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Mr. Stad is the managing member of Dragoneer Global GP, LLC (&quot;Dragoneer GP&quot;), Dragoneer Global GP II, LLC (&quot;Global GP II&quot;), and Dragoneer Investment Group, LLC (&quot;Dragoneer Adviser&quot;). Dragoneer GP is the manager of Dragoneer Apartment, LLC (&quot;Dragoneer Apartment Fund&quot;) and Global GP II is the general partner of Dragoneer Global Fund II, L.P. (&quot;Dragoneer Global Fund II&quot; and, together with Dragoneer GP, Dragoneer Adviser, Dragoneer Apartment Fund, and Global GP II, the &quot;Dragoneer Entities&quot;) which, along with certain other funds and managed accounts associated with the Dragoneer Entities and Mr. Stad, sold shares of Class A Common Stock reported in the table above. Dragoneer Global Fund II sold 11,890 shares of Class A Common Stock, Dragoneer Apartment Fund sold 4,682 shares of Class A Common Stock, and certain other funds and managed accounts sold 3,373 shares of Class A Common Stock.</footnote>
        <footnote id="F2">By virtue of the foregoing relationships, Mr. Stad and each of the Dragoneer Entities may be deemed to share beneficial ownership of some or all of the securities reported above. Mr. Stad and each of the Dragoneer Entities disclaims beneficial ownership of the reported securities, except to the extent of their respective pecuniary interest therein.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/Marc Stad</signatureName>
        <signatureDate>2017-07-17</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Dragoneer Global Fund II, L.P., By Dragoneer Global GP II, LLC, its general partner, /s/Pat Robertson</signatureName>
        <signatureDate>2017-07-17</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Dragoneer Apartment, LLC, By Dragoneer Global, LLC, its manager, /s/Pat Robertson</signatureName>
        <signatureDate>2017-07-17</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
