Here's a thought experiment. You're at a store. A salesperson approaches and says, "I'd like to charge you $14.99 for something you'll use twice." You'd laugh and walk away. But when a subscription does the exact same thing, you shrug, mumble "I'll use it more next month," and continue scrolling on the couch.
The Cost-Per-Use Test is the antidote to this delusion. It's embarrassingly simple math that reveals the true value of every subscription you own. Fair warning: some of your favorite services are about to get roasted.
The Formula That Changes Everything
Cost Per Use = Monthly Price / Number of Uses Per Month
That's it. That's the whole formula. Nobel Prize pending.
A "use" depends on the service. For streaming, it's a viewing session. For a gym, it's a visit. For software, it's a day you actively used it. For a meal kit, it's a meal. The definition doesn't matter as long as you're honest about it.
The magic number? Most financial advisors suggest that entertainment subscriptions should cost under $1 per use to justify their existence. Professional tools get more leeway at $2-3 per use. Anything above $5 per use deserves serious scrutiny unless it's mission-critical.
The Winners: Subscriptions That Actually Earn Their Keep
Let's start with the good news. Some subscriptions are absolute bargains when you do the math:
The Cost-Per-Use All-Stars
Spotify at 43 cents per listen is a revelation. Consider that a single song on iTunes used to cost $1.29. Now you get access to 100 million tracks for the price of one track per day. If Spotify ever puts that in their marketing, everyone's subscribing.
Netflix at 90 cents per viewing session handily beats the movie theater ($11.75 per ticket). Even at the Premium $24.99 tier, watching 15+ times per month keeps it under $1.67 per session. Compare that to renting a single movie on Apple TV for $5.99.
The Losers: Subscriptions Failing the Cost-Per-Use Test
Now for the uncomfortable part. These are common subscriptions where the math gets ugly fast:
The Cost-Per-Use Hall of Shame
The gym membership is the reigning champion of terrible cost-per-use. The International Health, Racquet & Sportsclub Association (IHRSA) reports that the average gym member goes 4.8 times per month. At $49.99/month, that's $10.41 per visit. But that's the average. Roughly 67% of gym memberships go completely unused, according to a 2024 RunRepeat study. For those people, the cost per use is technically infinite. Congratulations, you're paying $600/year for a keycard you use as a fidget toy.
MasterClass is another repeat offender. Everyone signs up excited to learn cooking from Gordon Ramsay, watches two videos, and then pays $15/month for the next eight months to maintain the illusion they'll eventually learn filmmaking from Martin Scorsese. They won't.
The "Sneaky Middle" Category
Some subscriptions hover in the gray zone -- not obviously terrible, but not great either. These are the ones worth examining for your subscription ROI:
Disney+ at $17.99/month, used 4 times: $4.50 per use. Not terrible, but you're paying a premium for access to Marvel and Star Wars content you've mostly already seen. Might be worth rotating seasonally instead of maintaining year-round.
ChatGPT Plus at $20/month, used 10 times: $2.00 per use. If you're using it for work or learning, this is fine. If you're using it to settle bar arguments and generate memes, your cost-per-use might not justify the premium over the free tier.
HelloFresh at $60/month for 3 meals: $20 per meal. Compared to eating out ($15-25 per person), it's competitive. Compared to grocery shopping and cooking the same recipe from the internet ($5-8 per meal), it's expensive convenience.
How to Run the Test on Your Own Subscriptions
Ready to audit yourself? Here's a step-by-step approach to auditing your subscriptions using cost-per-use:
Step 1: List everything. Open Subcut to see all your active subscriptions and their monthly costs. You need the complete picture before you start calculating.
Step 2: Track usage for one month. Be brutally honest. Every time you use a subscribed service, make a note. At the end of the month, you'll have real data instead of the fantasy version ("I totally use Duolingo every day" -- no, you don't, your streak has been dead since February).
Step 3: Do the math. Divide each monthly cost by its usage count. Sort the results from highest to lowest cost-per-use. The top of that list is where your money is being wasted.
Step 4: Set thresholds. Decide your personal acceptable cost-per-use. A good starting framework:
- Under $1/use: Keep without question
- $1-$3/use: Keep if you genuinely enjoy it
- $3-$5/use: Consider downgrading or rotating
- $5-$10/use: Strong candidate for cancellation
- Over $10/use: Cancel unless it's essential for work
Step 5: Act on the data. Cancel or downgrade everything above your threshold. Don't negotiate with yourself. The numbers don't lie, even if your attachment to MasterClass tells you that you're "definitely going to watch the Annie Leibovitz photography series this weekend." You're not. You're going to watch Netflix. Because Netflix has a cost-per-use of 90 cents and your brain knows a good deal when it sees one.
When Cost-Per-Use Doesn't Tell the Whole Story
Before you cancel everything with a high number, a few caveats. Some subscriptions provide value beyond frequency of use:
Insurance-type subscriptions. Cloud backup, identity theft monitoring, and password managers provide peace-of-mind value that doesn't correlate with usage frequency. You don't want to use your identity theft monitoring service frequently. That would be bad.
Seasonal subscriptions. A skiing app might have terrible cost-per-use in July but incredible value in December. Evaluate these over their relevant season, not year-round. Better yet, only subscribe during the season.
Professional tools. If Adobe Creative Cloud earns you money, the cost-per-use calculation matters less than the ROI on the income it generates. A $59.99/month tool that enables $3,000/month in freelance income is an incredible investment regardless of daily usage.
The cost-per-use test isn't perfect, but it's a powerful lens for cutting through the emotional fog that keeps us paying for things we barely touch. Run it once, and you'll never look at your subscriptions the same way again. Your wallet will thank you. Your unused MasterClass account will not.
Frequently Asked Questions
What is a good cost per use for a subscription?
Under $1 per use for entertainment subscriptions and under $2-3 per use for productivity or professional tools. For streaming services used daily, the cost per use drops to pennies, making them excellent value. Anything above $5 per use should be seriously evaluated unless it provides critical functionality.
How do I calculate cost per use for my subscriptions?
Divide your monthly subscription cost by the number of times you used the service that month. For example, Netflix at $17.99 used 20 times costs $0.90 per use. Track your usage honestly for one full month to get an accurate picture. Use Subcut to keep track of costs and renewal dates.
What subscriptions have the worst cost per use?
Gym memberships are the classic worst offender, averaging $10-17 per visit for most members. Premium news subscriptions used once or twice a month can hit $6-20 per read. MasterClass, Paramount+, and fitness apps used sporadically often exceed $5-15 per session.
Should I cancel a subscription with high cost per use?
Not always. Some subscriptions provide value beyond usage frequency. Password managers, cloud backup, and identity monitoring provide peace-of-mind value. Professional tools that generate income justify higher cost-per-use through ROI. Use cost-per-use as one factor alongside practical necessity and income generation.
How does Netflix's cost per use compare to going to the movies?
Netflix Standard at $17.99/month used 20 times costs about $0.90 per session. A movie ticket averages $11.75 in 2026. One month of Netflix equals roughly 1.5 movie tickets but provides 20+ viewing experiences. Even at just 5 uses per month ($3.60/session), it's far cheaper than a theater visit.