Each Monto app has multiple billing tiers with their own quota limits. When you hit the usage limit of your current tier, we will auto-upgrade you to the next tier (if you have auto-upgrade turned on).
Here is how the billing cycle works for each app (there are two types):
For... Monto Reviews, Abandoned Cart Recovery, Affiliates, Multi-Currency Apps (Non-prorated)
Because each of these apps is based on "using up" a set quota (of orders or revenue recovered, etc.), the new charge is not prorated and will be for the full amount of the next tier. In other words, you have already received the full benefit of that plan's usage once the quota is used up.
However, the upgrade also resets your renewal date and unlocks the full quota amount of the next tier.
Example:
You launch a new site on January 1st. You start with Monto's Basic ACR plan of $20/mo with a quota of $300 in recovered revenue per mo.
>> You recover $250 in recovered revenue by January 31st (Quota usage: $250/$300). So on February 1st, you will pay $20 and start fresh with $0 filled of your $300 quota for February (Quota usage: $0/$300).
>> In February, your site starts growing and you recover $400 by February 15th (Quota usage: $400/$300).
You have used up all $300 of the quota on the Basic plan. We will auto-upgrade you to the Growth plan for $40/mo with a quota limit of $1000/mo in recovered revenue.
You will be charged on February 15th for $40 AND your quota will restart at $0 for the billing period which is also reset to that day (Quota: $0/$1000).
So your app renewal period (and new billing date) will now be on the 15th of each month. You will not be charged again until March 15th for the Growth plan of $40 unless you exceed your quota again.
For... Monto Subscriptions App (Prorated)
Monto's subscriptions app is based on managing the number of subscribers you currently have rather than a quota that gets "used up." Because this is measured by ongoing management of plans (as opposed to one-time usage like revenue recovered), then subscription plan upgrades are prorated.
Example:
You launch a new site on January 1st. You start with Monto's Basic Subscription plan of $20/mo for up to 100 subscribers.
> You acquire 85 subscribers in January (Quota: 85/100). So on February 1st, you will pay $20 again and still be on the Basic plan as you currently have 85 subscribers (Quota usage: 85/100)
> In February your site starts growing and you acquire 100 subscribers by February 15th. (Quota usage: 100/100)
We will auto-upgrade you to the Growth plan of $60/mo for up to 400 subscribers.
You will be charged on February 15th for the prorated amount of $20 (50% of time remaining on $20 monthly plan = $10 credit; second half of the month prorated charge for the $60 plan = $30 charge; $30-$10 = $20) and your quota is upgraded to 400 (Quota usage: 100/400).
The rest of the month you acquire another 100 subscribers. So, on March 1st, you are still on the Growth plan and will pay $60 (Quota usage: 200/400).