{"course":{"slug":"choosing-your-tools","title":"Choosing and Using the Tools","url":"https://addaly.com/learn/choosing-your-tools","level":"beginner","track":"work"},"lesson":{"slug":"three-billing-shapes","title":"Subscriptions, credits and pay-as-you-go","url":"https://addaly.com/learn/choosing-your-tools/three-billing-shapes","position":35,"of":76,"minutes":7,"answer":"Subscriptions cannot surprise you and are easy to underuse, prepaid credits fail safely by running out, and pay-as-you-go is the most efficient and the only shape that can produce a bill you did not expect.","keyIdea":"Subscriptions cannot surprise you and are easy to underuse, prepaid credits fail safely by running out, and pay-as-you-go is the most efficient and the only shape that can produce a bill you did not expect."},"body":{"format":"markdown","text":"## Three shapes, three different risks\n\n**A subscription.** A fixed monthly price for capped use. Predictable, and the cap is enforced by refusal rather than by billing. You cannot overspend. You can easily underuse: the commonest waste in this field is three subscriptions where one is used.\n\n**Prepaid credits.** You load an amount and it depletes. Common on routers and some providers. Predictable in the direction that matters, because running out is an error rather than an invoice, and it is the right shape for anyone who is nervous about open-ended pricing.\n\n**Pay-as-you-go.** You are invoiced for what you used. The most efficient and the only one that can surprise you. Always combined with a hard cap you set yourself.\n\n## What each is best for\n\nSubscriptions suit steady, conversational, human-paced use where the product features (memory, projects, mobile apps, file handling, voice) are much of the value. If you use a chat assistant most days and never write code, this is your shape and the arithmetic rarely favours anything else.\n\nCredits suit experimenting, occasional heavy bursts, and anybody who cannot risk a bill. They also suit gifts and shared budgets: you can give somebody £10 of access without giving them your card.\n\nPay-as-you-go suits automation, volume, and light use. A person asking a handful of questions a day usually spends a few dollars a month. The same person on a subscription spends twenty.\n\n## Things that catch people\n\n**Seat licences.** Team plans charge per person per month, and they usually charge for the seat whether or not the person uses it. A team of twelve where four people use the tool is paying three times what it needs to. Review the seat list quarterly; nobody ever does this and it is often the largest single saving available to a small organisation.\n\n**Annual commitments.** A discount of 15% to 20% for paying yearly, in a field where the right tool changes every six months. For a business with a settled workflow, reasonable. For an individual still deciding, it converts a reversible choice into an irreversible one for the sake of three dollars a month.\n\n**Minimum commitments and tiers.** Enterprise agreements sometimes come with a spend floor. If you commit to $2,000 a month and use $600, you paid $2,000.\n\n**Credits that expire.** Free promotional credits usually expire in 30 to 90 days. Purchased credits sometimes expire too: check before loading a large amount.\n\n**Overage rates.** Some plans include an allowance and then charge per unit beyond it, occasionally at a rate worse than pay-as-you-go. Find that number before you rely on the plan.\n\n**Auto-renewal after a trial.** Set a calendar reminder two days before, on the day you sign up. This is the single most reliable way people lose money in this category, and it is entirely preventable.\n\n## Reading the plan page properly\n\nThree lines on a pricing page carry most of the risk, and none of them is the headline number. Find the allowance: messages, requests, credits, or \"usage limits apply\" with no figure at all, which is itself worth noting. Find the rate beyond the allowance. Find the cancellation terms, including whether cancelling stops access immediately or at the end of the term.\n\nIf the page will not tell you the allowance in a number, that is a deliberate choice by the seller, and it means you cannot compare the plan with anything. Treat vagueness there as a price in itself.\n\n## Mixing them, which is what most people should do\n\nThere is no rule that says pick one. A common and sensible arrangement:\n\n- One subscription for the tool you use daily, chosen on features and fit.\n- A small prepaid credit balance on a router, for testing anything new and for the second opinion.\n- Free tiers of two other products, for occasional comparison.\n- A local model for confidential and offline work.\n\nTotal cost: the subscription, plus perhaps two dollars a month, plus nothing. That covers everything this course discusses, and it is a smaller monthly bill than most people currently carry across three overlapping subscriptions they forgot to cancel.\n\n## The review that pays for itself\n\nOnce a quarter, open the billing pages of everything you pay for and answer one question each: *did I use this last month?* Not *might I use it*: did I. Cancel what you did not. Everything here can be restarted in two minutes, nothing is lost by pausing, and there is no loyalty being tested."},"check":{"question":"A twelve-person team pays for twelve seats and four people use the tool. Why is this different from an individual underusing a subscription?","options":[{"text":"It is the same waste, and the fix in both cases is to move to pay-as-you-go pricing instead.","correct":false,"tempting":"Prescribes a route that fits automation rather than human chat use, and does not address seats being billed for absent users."},{"text":"Team plans usually pool usage across seats, so unused seats subsidise the heavy users and nothing is wasted.","correct":false,"tempting":"Assumes pooled allowances that seat pricing does not generally provide; the charge follows the seat, not the usage."},{"text":"It is multiplied by eight empty seats and stays invisible, since nobody sees a bill as theirs.","correct":true},{"text":"The team plan includes features the individual plan lacks, so the extra seats are buying capability rather than access.","correct":false,"tempting":"Confuses the plan's features with per-seat charges; the features come with the plan, and the empty seats add cost without adding anything."}]},"prev":{"slug":"routing-by-difficulty","title":"Spending money where it matters","url":"https://addaly.com/learn/choosing-your-tools/routing-by-difficulty"},"next":{"slug":"hidden-costs","title":"The costs that are not on the invoice","url":"https://addaly.com/learn/choosing-your-tools/hidden-costs"},"authorship":"Founder and series editor: Dr Mustafa Mun. Written by AI models to a written standard. Exam keys checked blind by a second model: 3,665 of 3,666 agreed. Academic review invited.","review":{"status":"Draft, open for academic review"},"cite":"Addaly (2026) 'Subscriptions, credits and pay-as-you-go', in Choosing and Using the Tools. Edited by M. Mun. Addaly. Available at: https://addaly.com/learn/choosing-your-tools/three-billing-shapes (Accessed: 13 October 2026).","licence":{"name":"CC BY-NC-SA 4.0","url":"https://creativecommons.org/licenses/by-nc-sa/4.0/"},"reader":{"schema":1,"title":"Subscriptions, credits and pay-as-you-go","courseTitle":"Choosing and Using the Tools","module":{"index":4,"slug":"what-it-costs","title":"What it actually costs"},"answer":null,"keyIdea":"Subscriptions cannot surprise you and are easy to underuse, prepaid credits fail safely by running out, and pay-as-you-go is the most efficient and the only shape that can produce a bill you did not expect.","hero":{"kind":"plate","image":null,"alt":null,"caption":null},"blocks":[{"t":"h2","id":"three-shapes-three-different-risks","runs":[{"text":"Three shapes, three different risks"}]},{"t":"p","runs":[{"text":"A subscription.","b":true},{"text":" A fixed monthly price for capped use. Predictable, and the cap is enforced by refusal rather than by billing. You cannot overspend. You can easily underuse: the commonest waste in this field is three subscriptions where one is used."}]},{"t":"p","runs":[{"text":"Prepaid credits.","b":true},{"text":" You load an amount and it depletes. Common on routers and some providers. Predictable in the direction that matters, because running out is an error rather than an invoice, and it is the right shape for anyone who is nervous about open-ended pricing."}]},{"t":"p","runs":[{"text":"Pay-as-you-go.","b":true},{"text":" You are invoiced for what you used. The most efficient and the only one that can surprise you. Always combined with a hard cap you set yourself."}]},{"t":"h2","id":"what-each-is-best-for","runs":[{"text":"What each is best for"}]},{"t":"p","runs":[{"text":"Subscriptions suit steady, conversational, human-paced use where the product features (memory, projects, mobile apps, file handling, voice) are much of the value. If you use a chat assistant most days and never write code, this is your shape and the arithmetic rarely favours anything else."}]},{"t":"p","runs":[{"text":"Credits suit experimenting, occasional heavy bursts, and anybody who cannot risk a bill. They also suit gifts and shared budgets: you can give somebody £10 of access without giving them your card."}]},{"t":"p","runs":[{"text":"Pay-as-you-go suits automation, volume, and light use. A person asking a handful of questions a day usually spends a few dollars a month. The same person on a subscription spends twenty."}]},{"t":"h2","id":"things-that-catch-people","runs":[{"text":"Things that catch people"}]},{"t":"p","runs":[{"text":"Seat licences.","b":true},{"text":" Team plans charge per person per month, and they usually charge for the seat whether or not the person uses it. A team of twelve where four people use the tool is paying three times what it needs to. Review the seat list quarterly; nobody ever does this and it is often the largest single saving available to a small organisation."}]},{"t":"p","runs":[{"text":"Annual commitments.","b":true},{"text":" A discount of 15% to 20% for paying yearly, in a field where the right tool changes every six months. For a business with a settled workflow, reasonable. For an individual still deciding, it converts a reversible choice into an irreversible one for the sake of three dollars a month."}]},{"t":"p","runs":[{"text":"Minimum commitments and tiers.","b":true},{"text":" Enterprise agreements sometimes come with a spend floor. If you commit to $2,000 a month and use $600, you paid $2,000."}]},{"t":"p","runs":[{"text":"Credits that expire.","b":true},{"text":" Free promotional credits usually expire in 30 to 90 days. Purchased credits sometimes expire too: check before loading a large amount."}]},{"t":"p","runs":[{"text":"Overage rates.","b":true},{"text":" Some plans include an allowance and then charge per unit beyond it, occasionally at a rate worse than pay-as-you-go. Find that number before you rely on the plan."}]},{"t":"p","runs":[{"text":"Auto-renewal after a trial.","b":true},{"text":" Set a calendar reminder two days before, on the day you sign up. This is the single most reliable way people lose money in this category, and it is entirely preventable."}]},{"t":"h2","id":"reading-the-plan-page-properly","runs":[{"text":"Reading the plan page properly"}]},{"t":"p","runs":[{"text":"Three lines on a pricing page carry most of the risk, and none of them is the headline number. Find the allowance: messages, requests, credits, or “usage limits apply” with no figure at all, which is itself worth noting. Find the rate beyond the allowance. Find the cancellation terms, including whether cancelling stops access immediately or at the end of the term."}]},{"t":"p","runs":[{"text":"If the page will not tell you the allowance in a number, that is a deliberate choice by the seller, and it means you cannot compare the plan with anything. Treat vagueness there as a price in itself."}]},{"t":"h2","id":"mixing-them-which-is-what-most-people-should-do","runs":[{"text":"Mixing them, which is what most people should do"}]},{"t":"p","runs":[{"text":"There is no rule that says pick one. A common and sensible arrangement:"}]},{"t":"ul","items":[[{"text":"One subscription for the tool you use daily, chosen on features and fit."}],[{"text":"A small prepaid credit balance on a router, for testing anything new and for the second opinion."}],[{"text":"Free tiers of two other products, for occasional comparison."}],[{"text":"A local model for confidential and offline work."}]]},{"t":"p","runs":[{"text":"Total cost: the subscription, plus perhaps two dollars a month, plus nothing. That covers everything this course discusses, and it is a smaller monthly bill than most people currently carry across three overlapping subscriptions they forgot to cancel."}]},{"t":"h2","id":"the-review-that-pays-for-itself","runs":[{"text":"The review that pays for itself"}]},{"t":"p","runs":[{"text":"Once a quarter, open the billing pages of everything you pay for and answer one question each: "},{"text":"did I use this last month?","i":true},{"text":" Not "},{"text":"might I use it","i":true},{"text":": did I. Cancel what you did not. Everything here can be restarted in two minutes, nothing is lost by pausing, and there is no loyalty being tested."}]}],"check":{"question":[{"text":"A twelve-person team pays for twelve seats and four people use the tool. Why is this different from an individual underusing a subscription?"}],"options":[{"text":[{"text":"It is the same waste, and the fix in both cases is to move to pay-as-you-go pricing instead."}],"correct":false,"tempting":[{"text":"Prescribes a route that fits automation rather than human chat use, and does not address seats being billed for absent users."}]},{"text":[{"text":"Team plans usually pool usage across seats, so unused seats subsidise the heavy users and nothing is wasted."}],"correct":false,"tempting":[{"text":"Assumes pooled allowances that seat pricing does not generally provide; the charge follows the seat, not the usage."}]},{"text":[{"text":"It is multiplied by eight empty seats and stays invisible, since nobody sees a bill as theirs."}],"correct":true,"tempting":null},{"text":[{"text":"The team plan includes features the individual plan lacks, so the extra seats are buying capability rather than access."}],"correct":false,"tempting":[{"text":"Confuses the plan’s features with per-seat charges; the features come with the plan, and the empty seats add cost without adding anything."}]}],"order":[0,3,2,1],"why":null},"prev":{"slug":"routing-by-difficulty","title":"Spending money where it matters","minutes":8},"next":{"slug":"hidden-costs","title":"The costs that are not on the invoice","minutes":8}}}