# Anti-detect browser annual plan discounts, worked out > At 40% off, a prepaid year costs what 7.2 months of monthly billing would. It is also a bet that the engine keeps up with Chrome for twelve months. Source: https://mosaicbrowser.com/blog/annual-discounts-anti-detect ## Yearly discounts on anti-detect browsers, read in full At 40% off, a prepaid year costs what 7.2 months of monthly billing would. It is also a bet that the engine keeps up with Chrome for twelve months. ![Monthly versus Prepaid year, each name in its own tile: Pay monthly, or prepay the year?](https://mosaicbrowser.com/covers/annual-discounts-anti-detect.webp) A yearly discount on an anti-detect browser is worth taking only if you would have stayed past the month where the two prices cross. That month is easy to work out, and it usually arrives sooner than the headline percentage suggests. The other half of the bet is less obvious: you are prepaying for a year of an engine that has to keep pace with Chrome, and that part is not in the price at all. ## The break-even month Take the discount as a fraction, subtract it from one and multiply by twelve. That is how many months of monthly billing the prepaid year costs. | Yearly discount | The year costs the same as | | --- | --- | | 10% | 10.8 months | | 20% | 9.6 months | | 30% | 8.4 months | | 40% | 7.2 months | | 50% | 6 months | So at 40% off you come out ahead if you are still using the tool in month eight. If there is a real chance you will stop, move tools or shrink before then, monthly billing is cheaper in expectation, because the months you would not have paid for are money you do not get back. A large discount is a vendor's estimate of how long people stay. It is worth asking whether you think you will stay longer than they think the average buyer does. Mosaic is a desktop app Email yourself the link and open it on your computer. How it works: Bulk actions ## The tier you buy in month one Most plans in this market are priced in steps of profile count, seats or open browsers. A prepaid year fixes the step as well as the price. Three questions are worth asking the vendor before paying, in writing if the pricing page does not answer them: 1. If I need the next tier in month five, do I pay the difference for the rest of the year, or start a new year at the new tier? 2. If I need fewer profiles, can I step down before the year ends? 3. What happens to profiles above my limit if I do step down? A discount that looks good on the tier you need today can be poor value on the tier you need in the spring. Profile counts tend to move in one direction for anybody whose work is growing. [Why anti-detect browsers cost what they cost](https://mosaicbrowser.com/blog/why-anti-detect-browsers-cost-so-much) explains why per-profile pricing exists, and [paying per open browser](https://mosaicbrowser.com/blog/concurrent-browser-pricing) covers the meter that counts what is open rather than what is stored. ## Read the refund terms for a prepaid year Monthly billing has a built-in exit: you stop paying. A prepaid year needs one written down. Look for whether the year is refundable after the first days, whether a refund is pro rata or nothing, and whether the price is locked for the term or can change at renewal. If the terms are silent, treat the money as spent on day one. Promotional codes deserve the same reading. A code that takes a further cut off the first year often says nothing about the second, and the renewal comes in at the list price. ## The part that is not on the pricing page: the engine An anti-detect browser is a Chromium build plus whatever the vendor changes in it. Google ships a new Chrome major roughly every four weeks, so a year is about a dozen releases. Each one moves things a page can read: the version in the User-Agent and client hints, which APIs exist, small changes in the network stack. A profile has to claim a Chrome version, and that claim has to match the browser underneath it. An engine that falls behind leaves two bad options. Its profiles can claim the old major, which fewer real people run every month. Or they can claim the current one on an engine that does not have the current one's features, which a page can compare. Neither shows up in a feature table, and both get worse the further into the year you are. So before prepaying, check two things you can see for yourself. Which Chrome major does the vendor's browser run today, against the current stable Chrome? And how long did it take them to move last time a new major shipped? A vendor that is a release or two behind on the day you buy is unlikely to be closer by month eleven. For our own engine we can give the cost, because we measured it. Moving Tesseract Chrome up one Chrome major was a near-full rebuild of 93 minutes on our build machine. The slow part of a release is the checking afterwards: whether every profile still reads as the Chrome it claims. ## How Mosaic is billed We do not sell a yearly plan. Pro is one plan at $49 a month, billed monthly, with no per-profile pricing, and you can try it free for 14 days. Profiles run on your own computer and cost us nothing to give away, so there is one plan and no tier to outgrow, and nothing to prepay against. The current numbers are on the [pricing page](https://mosaicbrowser.com/pricing), and how the field compares on features is in [the best anti-detect browsers](https://mosaicbrowser.com/compare/best-anti-detect-browsers). ## Questions ### Is an annual plan on an anti-detect browser worth it? Only if you would have kept paying past the break-even month. Divide what the year costs by the monthly price: if the answer is 7.2 and you are not sure you will still use the tool in month eight, monthly is the cheaper bet. ### How do I work out the break-even point of a yearly discount? Multiply 12 by one minus the discount. At 40% off, 12 x 0.6 = 7.2, so the year costs the same as about seven months of monthly billing. At 20% off it is 9.6 months. ### Why does the browser engine matter for a yearly plan? Chrome ships a new major version about every four weeks, so a year is around a dozen releases. Profiles that keep claiming an old Chrome, or claim a new one on an old engine, are easier to tell apart from real browsers. ### Does Mosaic offer a yearly plan? No. Pro is one plan billed monthly, with no per-profile pricing, and a free trial of 14 days before the first payment. ## Related [Why anti-detect browsers cost what they cost](https://mosaicbrowser.com/blog/why-anti-detect-browsers-cost-so-much): Anti-detect browsers are expensive per profile when the vendor stores and syncs each one. A profile on your own disk costs the vendor nothing. [Paying per open browser instead of per profile](https://mosaicbrowser.com/blog/concurrent-browser-pricing): Concurrent-browser pricing charges for how many profiles are open at once, not how many exist. Cheap for a big quiet library, costly when many run together. [The best anti-detect browsers, compared on the same criteria](https://mosaicbrowser.com/compare/best-anti-detect-browsers): Seven anti-detect browsers on one table: free plan, entry price, what they bill by, teams, mobile and automation, from each vendor's own page in November 2026.  [Cloud phones by the minute, and what the meter adds up to](https://mosaicbrowser.com/blog/cloud-phone-per-minute): A cloud phone priced per minute and left open eight hours a day runs 14,400 minutes a month. Multiply by the rate before you compare it with a flat plan. [Grandfathered plans and why review prices disagree](https://mosaicbrowser.com/blog/grandfathered-pricing): On an old GoLogin pricing plan, your renewal price comes from your own subscription, not the public page. Reviews often quote plans a new account can't buy. [Anti-detect browser promo codes and the price at month thirteen](https://mosaicbrowser.com/blog/promo-codes-and-renewals): An anti-detect browser promo code usually discounts one payment. Compare what you pay in month thirteen, at the profile count you will have by then. [Profile creation caps, the meter missing from the headline](https://mosaicbrowser.com/blog/creation-limits): A profile creation limit counts every profile you make, deleted ones included. It exists because delete-and-recreate gets round a profile cap. ## Mosaic, on your own computer The browser this blog is about: its own Chromium, fingerprints from real machines and a proxy exit per profile. Free holds 3 profiles. Pro is $49 a month for any number. Mosaic is a desktop app Email yourself the link and open it on your computer.