Compare leading Canadian feedback platforms StoreOpinion.ca survey portal and TellTims.ca survey platform to assess reward value, effort, and user experience.StoreOpinion.ca, operated by Loblaw Companies Limited, delivers PC Optimum Program points and sweepstakes entries for shoppers at Real Canadian Superstore and No Frills, while TellTims.ca offers fast Tim Hortons feedback rewards like Timbits, helping users choose between higher-value grocery benefits and quick café perks.