Zetik watches the web for you. Proofite reads the sources you already chose.
Two AI briefings that look alike and answer different questions — compared on facts we verified on Zetik's site and App Store listing on 24 August 2026, including the places where Zetik is genuinely the better pick.
- You follow a handful of things closely — a company, a field, a repo — and you find out late, from someone else, when something actually moves.
- Meanwhile the newsletters you deliberately subscribed to keep piling up unread, in the same mailbox as invoices and calendar invites.
- Those are two different problems, and the tools that solve them are built differently. It's worth knowing which one you have.
Give every topic its own address
Create an inbox per theme and each one gets a dedicated @in.proofite.com address to subscribe newsletters to. Your personal mailbox stays out of it. Alongside, add RSS feeds (pasting the site's address is enough), import what you already read from Substack or an OPML file, and set standing web searches.
One briefing every morning, at your hour
At the time you choose, the AI reads everything that arrived, drops the repeats and writes a single structured briefing: the lead, the quick blocks, what to keep an eye on — with a line explaining why each story is there for you.
Read it, or listen to the episode
The same briefing becomes a podcast episode with a natural voice, 2 to 20 minutes as you prefer, on a private feed you open in the podcast app you already use. Every feedback tap — more technical, simpler, mute this topic, follow that one — changes tomorrow's.
The verdict, in short
Zetik and Proofite are not the same category, even though both end in an AI briefing. Zetik is a watcher: you name an entity and it goes looking across the open web, finding sources itself and alerting you when something moves. Proofite starts one step earlier: you choose the sources, one by one, and nothing enters the briefing that you didn’t put there — newsletters arriving at your own dedicated address, your RSS feeds, your standing searches. That is why it isn’t a topic selector: two people with the same interests get different briefings, condensed each morning into one text you can also listen to as a real podcast episode, in five languages.
| Proofite | Zetik | |
|---|---|---|
| What it's built to doThe core difference: Zetik goes out looking for you; Proofite puts in order what you already decided to follow. | Condense the sources you picked into one daily briefing | Watch entities you name across the open web and alert you when something moves |
| Who decides what gets inThis is where personalisation actually differs. On Proofite two readers with identical interests get different briefings, because they start from different sources — it isn't a topic filter over a common pool. | You do. The briefing is built only from sources you added: newsletters subscribed with your own address, your feeds, your searches, links you saved. Nothing arrives from a shared catalogue. | You describe your interests in one sentence and Zetik builds the feed, finding sources itself across newsrooms, podcasts, blogs, GitHub and papers; you can also add sources of your own |
| How newsletters get inIt matters for paid subscriptions, which are delivered to an address rather than found on the web. | A dedicated @in.proofite.com address per inbox: you subscribe directly, your personal mailbox stays out of it | Newsletters are listed among the sources; the pages we verified don't describe a dedicated address to subscribe newsletters to |
| AudioBoth have a voice, and that's rare. The shape differs: per-story audio and clips inside the app, versus one written-and-read episode that lands in the podcast app you already use. | One daily episode, natural voice, 2–20 minutes, opening jingle, episode notes with source links, private feed for any podcast app | AI audio breakdowns of any story, and podcasts you follow cut into highlight clips — 'play the best minutes or the full episode', in the app |
| Learning from youTwo honest approaches. Zetik's editable memory is a genuinely good idea; Proofite's tuning is deterministic, one tap to one topic preference. | Explicit per-topic controls — more technical, simpler, mute, follow — that deterministically change the next briefing | The feed reshapes from feedback given in plain words, and the memory it keeps is visible and editable |
| LanguagesIf you read in a language other than English, this is the row that decides. | Digest and audio in English, Italian, Spanish, German and French | The App Store listing declares English only |
| PlatformsRoughly a tie; Proofite also runs fully in the browser. | Native iOS and Android apps, plus the web app | iOS 15.6+ and Google Play, published by Newsbang, Inc. |
| Usable by an AI agentIncluded on every plan. If you already work with an assistant, your reading becomes something it can act on rather than another app to open. | A built-in MCP server: Claude or any MCP client can read your digests, add a source and queue a link — the same tools the site itself uses | Not mentioned on the pages we verified |
| Trial and priceIn-app purchase prices read from the US App Store listing on 24 August 2026; they can differ by country and change without notice. | 5-day free trial, no card required; Pro at €9.99/month ($9.99 in the US), monthly only | No pricing published on zetik.com; the App Store lists Zetik Plus at $14.99/month and $119.99/year, Premium at $9.99/month and Zetik Pro at $149.99 |
Comparison verified on the official sites on 24 August 2026.
When to choose Zetik
- Your problem is missing things: you want to be told when a company, a person or a repo actually moves, not to receive a scheduled recap.
- You want the tool to go and find sources you don't know yet, rather than only reading the ones you already subscribed to.
- You want to see and edit what the AI remembers about you, item by item.
- You read in English, and following GitHub, arXiv or Reddit closely matters more to you than newsletters.
When to choose Proofite
- The pile you want gone is the one you built yourself: newsletters you chose and no longer manage to read.
- You read or listen in Italian, Spanish, German or French — not only in English.
- You want the whole thing as one episode in your podcast app during the commute, not clips to tap through in yet another app.
- You'd rather subscribe newsletters to a dedicated address than connect or hand over your personal mailbox.
- You already work with an AI assistant and want it to reach your sources directly, through the built-in MCP server.
- You want to try without entering a card: five days, then decide.
Watching and digesting are different jobs
Zetik's promise is in one line on its homepage: tell it what matters in one sentence, and it 'briefs you only when something actually moves'. That's monitoring. The unit is the event — a filing, a release, a post — and the value is arriving before you'd have found out otherwise. To do it, Zetik has to go looking across the open web, and it finds sources by itself.
Proofite's unit is the day. Everything that reached the sources you chose gets read, deduplicated and written into one briefing at the hour you set. Nothing is 'breaking'; the point isn't speed, it's that at eight in the morning you're up to date on your things in ten minutes, without opening thirty emails.
Which one you need depends on a question worth answering honestly: are you missing things, or are you drowning in things you asked for? They're both real problems. They're just not the same one.
There is a second difference hiding inside the first. Zetik personalises by topic: you say what matters and it picks, from the pool it assembles, what fits. Proofite personalises by source: the pool is yours, built one subscription and one feed at a time. It means the ceiling is different — a topic filter can only ever hand you the best of what everyone else can also get, while a briefing written from your own sources is, structurally, something only you receive.
Both have a voice — and it's worth explaining the difference
Most tools in this space have no audio at all, so it's fair to say plainly: Zetik does. Its site offers 'AI audio breakdowns of any story' and cuts podcasts you follow into highlight clips, letting you 'play the best minutes or the full episode'.
The difference is the shape. Zetik's audio is per story and per podcast, played inside the app: you choose what to hear. Proofite's audio is one episode a day — a script written for the ear, not the page, read by a single natural voice, with an opening jingle and notes carrying the source links — and it arrives on a private RSS feed you paste into the podcast app you already use.
That last detail is the practical one. On a commute, in the car, with headphones on while cooking, the thing that works is a queue that plays by itself for the number of minutes you chose. Between two and twenty, in your case.
Newsletters: found versus delivered
Zetik lists newsletters among the sources it covers, and lets you add sources of your own. But a newsletter you pay for isn't published on the web: it's delivered to an address. This is the difference that decides for a lot of people.
In Proofite every inbox has its own @in.proofite.com address. You subscribe with that address, so subscriptions arrive already sorted by theme, and your personal mailbox never enters the picture — we ask for no access to it. If you already read a lot on Substack, the import brings your subscriptions over; if you come from an RSS reader, an OPML file carries up to three hundred feeds in one go.
Prices: what's published, and what isn't
Zetik doesn't publish a price list on its site — the pricing page returns a 404. The figures you'll find here come from the US App Store listing, read on 24 August 2026: Zetik Plus at $14.99 a month or $119.99 a year, Premium at $9.99 a month, and Zetik Pro at $149.99. In-app purchase prices vary by country and can change; check them in the store before deciding.
Proofite costs €9.99 a month ($9.99 in the US), monthly only, with a five-day trial that asks for no card. We say it here because a comparison that hides its own price isn't a comparison.
One honest note on languages
Zetik's App Store listing declares English as the only supported language. If you follow English-language sources and read in English, that costs you nothing.
If you read in Italian, Spanish, German or French, it costs you a lot, and it's the row we'd look at first. Proofite's interface, briefing and audio all speak five languages — and the briefing can read sources in one language and tell you about them in another.
Listen to a sample briefing
30 seconds, the product's real voice.