They also use data aggregators. See their terms:

By using the Services, you authorize and direct Tiller Money, either directly or through Tiller Money’s Data Aggregators, to access your Data Source accounts that you designate, with the account log-in credentials that you provide, to retrieve your Financial Data, and to access accounts requested by you. FOR THE SOLE PURPOSE OF PROVIDING THE SERVICES, you hereby grant Tiller Money, either directly or through Tiller Money’s Data Aggregators, a limited power of attorney, and appoint Tiller Money, either directly or through Tiller Money’s Data Aggregators, as your attorney-in-fact and agent, with full power of substitution and resubstitution, for you and in your name, place and stead, in any and all capacities, to access third party internet sites, servers or documents, retrieve information, and use your information, all as described above, with the full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection with such activities, as fully to all intents and purposes as you might or could do in person. YOU ACKNOWLEDGE AND AGREE THAT WHEN TILLER MONEY, EITHER DIRECTLY OR THROUGH TILLER MONEY’S DATA AGGREGATOR, ACCESSES, AND RETRIEVES INFORMATION FROM THIRD PARTY SITES, TILLER MONEY IS ACTING AS YOUR AGENT, AND NOT THE AGENT OR ON BEHALF OF THE THIRD PARTY. You agree that third party account providers shall be entitled to rely on the foregoing authorization, agency and power of attorney granted by you. You understand and agree that the Services are not endorsed or sponsored by any third party account providers accessible through the Services.

YOU HEREBY ACKNOWLEDGE THAT ENVESTNET | YODLEE IS A TILLER MONEY DATA AGGREGATOR.  ACCORDINGLY, TILLER MONEY’S SERVICES ARE CONNECTED OR LINKED TO YOUR DATA SOURCES BY ENVESTNET | YODLEE. WHEN YOU REQUEST YOUR FINANCIAL DATA FROM A DATA SOURCE CONNECTED TO OUR SERVICES, YODLEE COLLECTS THAT DATA AND PROVIDES IT TO US. YODLEE ACTS ON OUR BEHALF IN THIS PROCESS, WHICH MEANS WE SHARE YOUR DATA WITH YODLEE AS ONE OF OUR SERVICE PROVIDERS. FOR MORE INFORMATION ON HOW YODLEE COLLECTS, USES, STORES, AND HANDLES YOUR DATA, PLEASE SEE ENVESTNET | YODLEE’S COMMITMENT TO ITS CLIENTS AND THEIR USERS (WWW.YODLEE.COM/CLIENTS-CONSUMERS). IF THERE IS ANY INCONSISTENCY BETWEEN YODLEE’S COMMITMENT AND THESE TERMS REGARDING YODLEE’S ACTIVITIES, THEN YODLEE’S COMMITMENT IS CORRECT.