Under the plans, students' results will be made available on the app at 11:00 on results day, which is Thursday 21 August.
Students collecting their results in person can do so from 08:00.
In Scotland, the Scottish Qualifications Authority (SQA) has enabled students to get their results in an online app since 2019. In Wales and Northern Ireland, results are usually distributed by schools and colleges.
This year's first GCSE exams began on Monday 5 May in England, and will last until Wednesday 25 June.
The government's plan is to bring each student's exam results and certificates into one online set of digital education records.
Students who are under 18 after finishing their GCSEs have to stay in full-time education, start an apprenticeship or work while studying part-time.
The government says the new app will mean further education colleges no longer have to hire extra staff to photocopy results or chase missing paperwork from prospective students.
Education minister Stephen Morgan said it was "high time exam records were brought into the 21st century" and that it would stop schools and colleges being "bogged down in bureaucracy".
Mark Giles, principal at The Hathershaw College in Oldham, said the app was "accurate and verifiable" after conducting a local trial at his school since last spring.