Where to watch
Not available in Canada
Streaming in 1 other country
The Flat Sum isn't on any streaming service in Canada right now, but it's available in Japan. Streaming rights are licensed per country.
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The Flat Sum — streaming FAQ
Which OTT platform streams The Flat Sum?
The Flat Sum isn't on any streaming service in Canada yet, but it's available in Japan. Streaming rights differ by country — switch your country in the header to see where.
Is The Flat Sum on Netflix?
No, The Flat Sum is not on Netflix in Canada as of October 2026.
Is The Flat Sum on Amazon Prime Video?
No, The Flat Sum isn't on Amazon Prime Video in Canada right now.
Where can I watch The Flat Sum for free?
The Flat Sum isn't streaming in Canada yet, so there's no way to watch it free at the moment.
