JOINT FILERS’ SIGNATURES

INSIGHT HOLDINGS GROUP, LLC


By:	/s/ Blair Flicker	Date: 6/11/2020
Name:	Blair Flicker
Title:	Attorney-in-Fact



INSIGHT VENTURE PARTNERS (CAYMAN) VII, L.P.
By:	Insight Venture Associates VII, L.P., its general partner
By:	Insight Venture Associates VII, Ltd., its general partner

By:	/s/ Blair Flicker	Date: 6/11/2020
Name:	Blair Flicker
Title:	Vice President



INSIGHT VENTURE PARTNERS (DELAWARE) VII, L.P.
By:	Insight Venture Associates VII, L.P., its general partner
By:	Insight Venture Associates VII, Ltd., its general partner


By:	/s/ Blair Flicker	Date: 6/11/2020
Name:	Blair Flicker
Title:	Authorized Officer



IVP CIF II (PS SPLITTER), L.P.
By:	Insight Venture Associates Coinvestment II, L.P., its general partner


By:	/s/ Blair Flicker	Date: 6/11/2020
Name:	Blair Flicker
Title:	Authorized Officer



INSIGHT VENTURE ASSOCIATES VII, L.P.
By:	Insight Venture Associates VII, Ltd., its general partner


By:	/s/ Blair Flicker	Date: 6/11/2020
Name:	Blair Flicker
Title:	Authorized Officer



INSIGHT VENTURE ASSOCIATES VII, LTD.


By:	/s/ Blair Flicker	Date: 6/11/2020
Name:	Blair Flicker
Title:	Authorized Officer



INSIGHT VENTURE ASSOCIATES COINVESTMENT II, L.P.



By:	/s/ Blair Flicker	Date: 6/11/2020
Name:	Blair Flicker
Title:	Authorized Officer



INSIGHT VENTURE PARTNERS VII (CO-INVESTORS), L.P.


By:	/s/ Blair Flicker	Date: 6/11/2020
Name:	Blair Flicker
Title:	Authorized Officer



INSIGHT VENTURE PARTNERS VII, L.P.
By:	Insight Venture Associates VII, L.P., its general partner
By:	Insight Venture Associates VII, Ltd., its general partner


By:	/s/ Blair Flicker	Date: 6/11/2020
Name:	Blair Flicker
Title:	Authorized Officer

Insight Venture Associates Coinvestment II, L.P. 4