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

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2017-01-19</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001327688</issuerCik>
        <issuerName>OOMA INC</issuerName>
        <issuerTradingSymbol>OOMA</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001167196</rptOwnerCik>
            <rptOwnerName>WEI JAMES</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>99 ALMADEN BLVD</rptOwnerStreet1>
            <rptOwnerStreet2>6TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>SAN JOSE</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>95113</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2017-01-19</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>3275000</value>
                    <footnoteId id="F2"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>8.30</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3275000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F3"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By entities associated with Worldview Technology Partners</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>61948</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Shares sold pursuant to that certain Purchase Agreement, dated as of January 12, 2017 by and among the Issuer, B. Riley &amp; Co., LLC (the &quot;Purchaser&quot;), Worldview Technology Partners IV, L.P., Worldview Technology International IV, L.P. and Worldview Strategic Partners IV, L.P. (the &quot;Purchase Agreement&quot;). The Transaction closed on January 19, 2017.</footnote>
        <footnote id="F2">Pursuant to the Purchase Agreement, Worldview Technology Partners IV, L.P. sold to the Purchaser 2,799,531 shares of Common Stock of the Issuer, Worldview Technology International IV, L.P. sold to the Purchaser 454,814 shares of Common Stock of the Issuer and Worldview Strategic Partners IV, L.P sold to the Purchaser 20,655 shares of Common Stock of the Issuer.</footnote>
        <footnote id="F3">Shares held directly by Worldview Strategic Partners IV, L.P. (&quot;Strategic IV&quot;), Worldview Technology International IV, L.P. (&quot;International IV&quot;) and Worldview Technology Partners IV, L.P. (&quot;Technology IV&quot; and, together with Strategic IV and International IV, the &quot;Worldview IV Funds&quot;). Worldview Capital IV, L.P., the general partner of each of the Worldview IV Funds, and Worldview Equity I, L.L.C., the general partner of Worldview Capital IV, L.P., may each be deemed to have sole voting and dispositive power over the shares held by the Worldview IV Funds. The Reporting Person, as a managing member of Worldview Equity I, L.L.C., may be deemed to share voting and dispositive power over the shares held by the Worldview IV Funds. The Reporting Person disclaims beneficial ownership of the shares held by the Worldview IV Funds, except to the extent of any pecuniary interest therein.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ James N. Strawbridge, as attorney-in-fact for James Wei</signatureName>
        <signatureDate>2017-01-19</signatureDate>
    </ownerSignature>
</ownershipDocument>
