Start with two numbers: the annual price, and the monthly price multiplied by the number of months you honestly expect to use the service. If a $120 annual plan replaces a $12 monthly plan, the break-even point is ten months. Use it for eight months and monthly billing costs $96; use it for twelve and annual saves $24.
Monthly is $24.00 cheaper if you use it 8 months.
Three formulas
| Question | Formula | $12 a month vs $120 a year |
|---|---|---|
| How many months to break even? | annual ÷ monthly | 120 ÷ 12 = 10 months |
| How big is the discount? | 1 − annual ÷ (monthly × 12) | 1 − 120 ÷ 144 = 16.7% |
| What do I save over a full year? | monthly × 12 − annual | 144 − 120 = $24 |
The discount says how good the offer is. The break-even point says whether it is good for you.
Three examples
Example values:
| Service and expected use | Prices | Break-even | Better choice |
|---|---|---|---|
| Cloud backup, used all year, every year | $2.99 a month or $29.99 a year | Just over 10 months | Annual |
| Streaming, for one series that takes 2 months | $15.49 a month or $154.99 a year | 10 months | Monthly |
| New language app, use not known yet | $12.99 a month or $59.99 a year | 4.6 months | Monthly for two or three months, then decide |
The language app is the interesting case. Its annual plan breaks even in under five months, so it is a good deal if the habit sticks. Paying monthly at first costs a little more and tells you whether it will.
What the calculation misses
Annual plans trade flexibility for a lower headline rate. A service may change price, quality, features, or your own need for it. That does not make annual plans a trap; it means the saving exists only if you keep using it.
- Cancelling part-way. When you cancel an Apple-billed annual plan, you keep access until the paid year ends. Unused months are not refunded automatically; you can ask at reportaproblem.apple.com, and Apple decides. Providers that bill you directly set their own refund rules.
- Price changes. A prepaid year usually keeps its price until renewal, so annual billing delays a price rise. A price cut, or a better offer elsewhere, waits too.
- Switching plans. On Apple-billed subscriptions, moving from monthly to yearly in the same app usually starts at your next renewal date. Check that date in Settings before you switch.
- Cash flow. One $120 charge lands in a single month. If that month already holds insurance or a holiday, monthly billing spreads the cost.
Ask before prepaying
- Did I use this consistently through last year?
- Would a cheaper tier do?
- Is it tied to a project, show, school term, or season?
- What happens to data or access if I cancel?
- When will it renew next year?
For a mature habit, such as backup, a core work tool or a household service, annual may be a clean choice. For something you started this month, monthly buys useful time to find out.
A middle path
Start monthly. After two or three months of steady use, switch to annual if the break-even point is shorter than the time you expect to keep the service. Put a reminder on the date you plan to decide, or the monthly plan simply carries on.
Whichever you choose, record the renewal date. An annual plan renews a year from now, long after the reasons for choosing it have faded; a 30/14/7-day runway gives you time to decide again.
Trials that convert to annual
Many app trials convert to a yearly plan, so the first charge after a free week can be a full year’s price. Before you start one, read which plan and price it converts to on the purchase sheet, and set a reminder a few days before the trial ends. The free-trial checklist covers the rest.
Cadora records the cycle and renewal date you choose. It calculates from entered prices; it does not tell you which provider plan to buy.
FAQ
Is an annual subscription always cheaper than monthly?
Per month, it usually is. In total, it is cheaper only if you use the service for at least the break-even number of months. Before that point, monthly costs less.
Can I get a refund if I cancel an annual subscription early?
It depends on who bills you. For Apple-billed subscriptions, cancelling stops the next renewal and you keep access until the year ends; you can ask for a refund through reportaproblem.apple.com, and Apple decides. For direct billing, check the provider’s terms.
When should I switch from monthly to annual?
Switch when you have used the service steadily for a few months and expect to keep it for longer than the break-even point. Set a reminder before the annual renewal so the next year is a choice too.
Download Cadora on the App Store
Khai Do is an independent iOS developer in Vietnam who builds and supports Cadora under Aquifer.