The difference is that the fund raising period is called subscription, and the normal operation period of the fund is called subscription.
Redemption means selling existing funds. Open-end funds can apply for selling at any time most of the time after buying funds. This behavior is called redemption, and the money goes back to the bank card account.
Therefore, subscription and subscription are the same thing, just the buying name of a fund in different periods.
Redemption is selling.