Zettel vs Cronus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Zettel
This app offers a minimalist note-taking experience, focusing on a single, full-screen note at a time. It features a unique swipe-to-clear gesture with haptic feedback and simple tag functionality for easy organization. Notes are saved as plain Markdown files for versatile use.
- Single full-screen note interface
- Swipe-to-clear gesture with haptic feedback
- Simple hashtag tagging system
- Plain Markdown file export
- Works with Files app
- Dark mode support
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Zettel - Quick Notes for iOS. Write. Swipe to tear. Done. Zettel brings the satisfying feeling of ripping paper to your iPhone. What makes it different: - One note at a time: Full screen. No tabs, no folders, no mess. Just you and your thoughts. - Tear to clear: Swipe from the edge and drag across the screen. Your note tears away with haptic feedback that actually feels real. - Tags that work: Type #anything and it becomes a tag. Find notes instantly without setting up complicated systems. - Your files, anywhere: Notes are plain Markdown files. Edit them in other apps, sync however you want, or just keep them local. Perfect for: - Quick thoughts - Meeting notes - Daily journaling - Project ideas Simple by design: - iPhone only (as it should be) - Works with Files app - Dark mode included - No account required - Zero tracking Built by someone who got tired of overcomplicated note apps. Sometimes the best tools are the simplest ones.
Cronus
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Cronus is the iPhone companion to the Cronus time tracker for Mac. The Mac app watches what you actually work on and builds your day for you, with no timers to start and nothing to remember. This app puts that day in your pocket, and adds the two things a laptop cannot see: the time you spend away from it, and the time you spend on your phone. SEE WHERE YOUR TIME ACTUALLY GOES Open the app and today is already drawn: every block of work, every distraction, to scale. Pinch to zoom into a busy afternoon, swipe sideways to compare it to yesterday. No stopwatch, no tags to maintain, no timesheet to fill in on Friday. FIX A CATEGORY IN ONE TAP Cronus is context-aware rather than rule-based, because a rule cannot know that half an hour on LinkedIn was recruiting and the other half was doom scrolling. When it gets one wrong, tap the block and pick the right category. The correction stands from that day onward, and your Mac follows it. LOG THE TIME YOU WERE NOT AT A COMPUTER A conference, a coffee, a walk that turned into the best thinking of the week. Start an entry from the Track tab and stop it when you are done, or press and hold anywhere on the timeline to fill in a stretch you already spent. ADD YOUR PHONE'S DISTRACTIONS, IF YOU WANT THEM Instagram at 11pm is part of your day whether or not it happened on a laptop. Name an app, pick it once in the Screen Time picker iOS shows you, and the time you spend there lands on the same calendar as everything else. This is entirely opt-in and entirely specific: Cronus only ever sees the apps you point it at, it never gets a list of what is on your phone, and the names it stores are the names you typed. THE WEEK AT A GLANCE Seven days of bars, your categories ranked biggest first, and the apps and sites inside each one. Select a run of them and move them all to another category at once. WHAT YOU NEED Cronus for iPhone requires a Cronus account and the Cronus app for Mac, which is where the automatic tracking happens. The Mac app is free for 21 days of actual use, days you do not open it do not count, and $6 a month after that. There is no purchase inside this app. ON PRIVACY Cronus never captures, saves or transmits an image of your screen, on any platform. On the phone, the only thing measured is how long you spent in the specific apps you added yourself, and Apple's Screen Time API is built so that we cannot learn anything else: iOS hands the app an opaque token, never an app name, so what reaches our server is the label you chose and a duration. Screen Time access is optional and can be revoked in Settings at any time. Read the full policy at https://cronushq.com/privacy
Screenshots
Verdict
The clearest difference is price: Cronus at Free against Zettel's $2.99. Cronus also leads on update cadence (daily vs monthly) and iOS requirement (16.4 vs 26.0). On ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Cronus is free to download; Zettel costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Zettel ships an update monthly, Cronus daily. The most recent releases landed on October 28, 2026 and October 22, 2026 respectively.
| Parameter | Zettel | Cronus |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.8 (6 ratings) — better | — |
| Positive reviews | 88.9% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Monthly | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, Mac — better | iPhone |
| Requires iOS | 26.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 7 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | Alexander Moritz Weichart | Moritz Wallawitsch |
In-app purchases
Zettel
No in-app purchases
Cronus
No in-app purchases









