They also recommend that the Government and business sector work together to support older workers, with retraining and career transition.
Developing guides and best practice frameworks to manage the country's ageing workforce has also been considered.
Review manager Scott McMurray said the KiwiSaver recommendations were aimed at making it easier for people to save more for the future, and providing "greater flexibility and certainty over their retirement savings".
Commerce and Consumer Affairs Minister Paul Goldsmith welcomed the Retirement Commissioner's KiwiSaver findings, saying he would be giving them "considerable thought".
"A number of the recommendations made by the commissioner have previously been brought to my attention by the public."
Goldsmith said work was already under way to implement the commissioner's recommendation to require KiwiSaver providers to disclose the total dollar cost of all fees on annual statements.
The commission said their recommendations weren't just about "policy makers and pension geeks", but "more about voters and the public".
The information has been packaged in a series of stop motion animation videos, dubbed "Toys Talk Retirement" .
The interactive platform allows users to choose how they experience the review, and can be viewed at http://v.wirewax.com/cffcreview2016.