Sidekick Browser lifetime deal
Sidekick Browser's lifetime deal is in the Graveyard on honored.ltd. The register holds a single verified breakage report against it — logged as a loss, reason: shut down — and backed by evidence. On this register a single verified, unrebutted report is enough to move a deal to the Graveyard, and that is what happened here. The shutdown is also a matter of public record: after the Sidekick team was acqui-hired by Perplexity, a move reported by The Information, the browser was sunset on August 3, 2025, and meetsidekick.com now redirects to Comet, the browser by Perplexity. So buyers who paid once for lifetime access to the software lost the access they paid for. The verdict is derived from that report and the public record — the register reports it, it does not decree it — and the developer keeps a right of reply. Evidence is logged symmetrically: if a holder's copy of Sidekick works somehow and access is still live, they can file a confirmation with receipts and the record will show it.
What it is
Sidekick was a productivity web browser built on Chromium, so it ran the latest version of Chrome's engine and supported any Chrome extension, with the interface rebuilt around getting work done. Its signature was the sidebar: you could pin frequently used sites and integrate web apps — Gmail, Slack, WhatsApp, Spotify, a doc — as apps in the sidebar, switch between them with one click or a keyboard shortcut, reply to a message without hunting through dozens of open tabs, and keep multiple accounts signed in at once, more like a native app than a row of tabs. Sessions let you save a bundle of tabs and reopen it later, which cut tab clutter and helped users stay organized; separate workspaces kept cookies, logins and settings apart so work email and personal browsing never mixed; split-view put two pages side by side; and a one-button Focus Mode muted notifications to help you stay focused. For privacy it shipped an ad blocker against ads and trackers plus fingerprint protection, and an AI-based tab suspender kept RAM in check with many tabs open. It was a desktop download for Mac, Windows and Linux, offered as a free version alongside a paid Sidekick Pro plan. Many unrelated products share the name; this page covers only the browser from meetsidekick.com, and only whether its lifetime deal was honored.
The lifetime deal
Sidekick launched in late 2020 from a San Francisco team led by Dmitry Pushkarev and later ran its lifetime deal on AppSumo — the software retailer where a one-time purchase replaces a recurring subscription — in three tiers covering one, five or twenty users, each with a built-in VPN. The deal ended in two acts. AppSumo's listing carries a sunset notice posted December 4, 2024 that names August 3, 2025 as the effective date, says the product had not seen the growth the team hoped for and had become unsustainable, and offers buyers a full refund in AppSumo credits through AppSumo support. A buyer posting in the AppSumo reviews on January 1, 2025 quoted a notice naming the end of 2024 instead; with the browser still fully operational that day, and still selling Pro subscriptions, that earlier notice was disputed in the reviews. The actual sunset followed the acquisition: The Information reported that Perplexity had acqui-hired the Sidekick team, Perplexity launched its own new browser, Comet, in July 2025, and Sidekick was switched off on August 3, 2025. Today meetsidekick.com redirects to Comet, and the AppSumo listing is marked sold out and unavailable.
Pricing
No public dollar price for the lifetime tiers survives on the listing we can see, and the register records the typical price as unknown. Before the deal, Sidekick's own pricing was a free version plus Sidekick Pro, a premium subscription that unlocked the full functionality; the AppSumo tiers replaced that recurring Pro plan with a one-time payment. That is where a lifetime deal's value sits — in the subscription it was meant to replace — and only for as long as the software keeps running. AppSumo's usual 60-day refund window closes within two months of the sale, so for most buyers it was long past when the December 2024 notice landed; that notice's offer of credits through AppSumo support is the one documented route back, and this register does not process refunds. A sunset ends 'lifetime' early regardless of the savings the buyer was promised. There is nothing left to buy today: no live listing, nowhere to download Sidekick, and any discount still quoted in an old roundup is stale.
Signals to watch
Lifetime deals break in four main ways: the company quietly stops honoring old codes, it caps or shrinks what a tier used to include, it moves must-have features behind a new paid add-on, or it shuts the product down entirely. Sidekick is on record here for the fourth and most final of these — a full shutdown, evidenced by the AppSumo sunset notice and by its domain now pointing at another company's browser. These are the signals the register watches on every product, and the reason a buyer's verified, receipt-backed report counts for more than any anonymous complaint or marketing promise: a deal is only as good as the access it still delivers.
FAQ
What happened to Sidekick Browser?
It was sunset on August 3, 2025, after its team was acqui-hired by Perplexity — a move reported by The Information — and after Perplexity launched its own Comet browser in July 2025. On this register that shutdown is recorded as a single verified breakage report, backed by evidence, which is what moved the lifetime deal to the Graveyard.
Did Sidekick shut down because of Perplexity, and does Comet honor the deal?
The record shows a sunset notice in December 2024, the acqui-hire by Perplexity in 2025, then the August 3, 2025 sunset; the register logs those documented business events and takes no view on motive. Comet is a separate product from a different company, and the register holds no record of Sidekick lifetime licenses carrying over to it — for a lifetime holder, the redirect from meetsidekick.com to Comet is a signpost, not a continuation of the license.
Are Sidekick Browser lifetime deals still available, and are they worth it?
No. The AppSumo listing is sold out and marked unavailable, and the product itself has been sunset, so there is nothing to buy and no installer to download. A lifetime deal is only ever worth the subscription it replaces while the software runs; once the browser is switched off, that value drops to zero regardless of the one-time price paid. A Sidekick code today is a receipt for the record, not a working license.
Why is my Sidekick lifetime deal not working?
Because the browser was sunset on August 3, 2025, there is no supported Sidekick left to sign in to, update or reinstall. If you paid for lifetime access and lost it, this register is the place to log it — with your AppSumo receipt and proof of when access stopped — and if your copy still works, you can file a confirmation instead. For refunds, the December 2024 AppSumo notice pointed buyers to AppSumo support for credits; the register does not process refunds.
Is the Sidekick Browser lifetime deal legit, or a scam?
The register takes no view on intent and uses no epithets — it records what happened. What is documented is a sunset product and a single verified breakage report: buyers paid once for lifetime access to a productivity browser and lost that access when it was switched off. A disputed early notice, then an acquisition, then a sunset — those are the facts logged here, with evidence, open to the vendor's reply.
Was Sidekick a good browser, and what do former Mac and Windows users switch to?
It was a Chromium-based productivity browser with a free version and a Pro plan; it supported Chrome extensions and was known for apps in the sidebar, saved Sessions, separate workspaces and Focus Mode, as a desktop product rather than a mobile app. Whether it was a good browser is for the people who started using Sidekick to judge; this register judges one thing — whether the lifetime promise was kept. Former users looking for the same workflow usually land on another Chromium-based browser: Comet itself, Vivaldi for workspaces and tab stacks, or Shift and Wavebox for sidebar web apps and multiple accounts.
Documented by: superchargebrowser.com · appsumo.com
Receipts & reports
- reported broken Jul 2026
Sidekick, a productivity web browser, sold a lifetime deal on AppSumo. After the Sidekick team was acqui-hired by Perplexity (reported by The Information), the browser was sunset on August 3, 2025, and the meetsidekick.com domain now redirects to the Comet browser by Perplexity. An earlier end-of-2024 shutdown notice was disputed at the time; the actual sunset followed the acquisition.
the register · documented from public record
Vendor response
No response on record yet.
Run Sidekick Browser? Claim it and reply on the record.