Caliu vs YAMM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Caliu
A minimalist markdown notes app designed for writers, offering a distraction-free writing experience with features like nested tags, reminders, and cross-device syncing. It allows for easy export and integration with external tools.
- Markdown writing with live formatting
- Nested and colored tags for organization
- Cross-device sync across iPhone, iPad, and Mac
- Reminders for notes
- Export to various formats (Markdown, ePub, RTF)
- REST API and MCP server for integration
- Customizable themes
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Caliu is a quiet place to write. Open it and start typing: no account, no setup, no clutter. Markdown takes shape as you type, everything works offline, and your notes stay on your device. When you want them everywhere, create a free account and they follow you across iPhone, iPad, Mac and the web. Sync is free, and it stays free. Writing comes first Headings, lists, tasks, quotes, code and links format as you write. There is no preview pane and no mode to switch: what you see is your note. The interface steps aside and leaves you with the page. Organised the way you think Tags instead of folders, because one idea can belong in many places. Nest them, colour them, and find any note in seconds. Link notes to each other and follow a thought from one to the next. Pin what matters now, and archive what you are done with without losing a word. There when you need it Native on iPhone, iPad and Mac, with a web app for everything else. Save things to Caliu straight from the share sheet, or add a thought from your Apple Watch. Yours, and only yours No ads. No tracking. Nothing you write is used to train AI. Your notes live on your device first and sync encrypted, and Caliu is built in the EU under GDPR. Export any note as Markdown or plain text whenever you like, share one as a public link when someone needs to read it, and delete your account at any time. Deleted means deleted. For tinkerers A full REST API and a built-in MCP server, so Claude, Cursor or your own scripts can read and write your notes, on your terms. Your first API key is free. Caliu Pro Writing, tags, sync and working offline are free. 50 notes free, forever, no account needed. Caliu Pro makes them unlimited and adds: • Version history: scroll back through any note and restore it in a tap • Every theme, font and app icon: 22 colour themes, each in light and dark, and 30 fonts • Drawing, right inside your notes • Unlimited attachments • More export formats: HTML, ePub, PDF, RTF and TextPack • Unlimited API keys, and connecting AI apps like Claude to your notes Subscribe monthly or yearly, or buy Pro lifetime once. Try it free before you decide. The monthly or yearly plan is an auto-renewing subscription: it renews unless you cancel at least 24 hours before the end of the current period, and you can manage or cancel it anytime in your App Store account settings. Made with care by a small, independent team of one. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://caliuapp.com/privacy
YAMM
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YAMM is an offline idea-note app for iPhone: capture notes by text, voice or photo, then spread them out as cards in a PC browser on the same Wi-Fi to group and combine them. No account, no cloud — every note stays on your phone. Voice, photos, text — gather all your ideas. Idea Assemble. Small notes become big ideas. Most note apps stop at writing things down. YAMM begins after you've written them. ■ Who it's for • You jot ideas in a notes app and never look at them again • You want to lay out your thoughts before planning, writing or studying • You like brainstorming with sticky notes or a whiteboard, but on a big screen • You'd rather not put your notes in an account or the cloud ■ New in 3.0 — voice notes and photo notes • Voice notes with dictation: tap the mic and talk — a text draft appears as you speak, and the recording (up to 2 minutes) stays with the note. • Photo notes: take a photo or pick one from your library, add a line, done. Photos are kept inside the app; your library is never touched. • Expand a bundle: on the board, open a combined note and its source notes branch out like a tree, so you can trace where an idea came from. • Backup as zip: export your text, photos and recordings as a single zip, and restore them anytime. ■ Quick capture — the moment it comes YAMM opens straight to the input screen, and the keyboard stays up after you save so you can keep going. On iOS 17 or later, a Shortcut lets you jot a note without unlocking and the Lock Screen widget opens straight to the input screen; on iOS 18 or later, so does the Control Center button. Everything you collect is one search away. ■ A big-screen idea board in any PC browser Open the address in a web browser on a PC, Mac or tablet on the same Wi-Fi, enter the 4-digit code, and your board unfolds. Your phone itself is the server, so there's nothing to install on the computer and no sign-in. No Wi-Fi? Connect with a USB cable and Personal Hotspot. No computer? Spread the board right on your phone. ■ Group, combine and organize your thinking Drag one card onto another to bundle them. Mine the bundle for a fresh idea as a new note — the originals stay as they are, and you can split them apart anytime without losing a thing. Make colored group boxes to gather related notes. ■ Private by design — stays on your phone No account, no cloud, no ads, no tracking. Your notes, recordings and photos are stored only on this device. Transcription runs on your iPhone's built-in speech recognition, so your voice never leaves it. The microphone and camera are requested only when you tap those buttons. ■ Start free Use up to 20 notes for free. A one-time purchase removes the limit and unlocks restoring from Trash and taking notes out of Storage. No subscription. ■ FAQ Q. Do I need to sign up or log in? A. No. There's no account — open the app and start writing. Q. Does it work offline? A. Note-taking works without internet. Spreading the board (on a PC or on your phone) doesn't need internet either — just Wi-Fi or Personal Hotspot turned on. Q. Do I need to install anything on my computer? A. No. Just open the address in a web browser such as Chrome, Edge or Safari. Q. Where are my notes stored? A. Only on this iPhone. You can make your own backup file with Export Data. Q. Which languages does voice dictation support? A. English and Korean — it follows your iPhone's language when that's English or Korean. With any other language, or if your iPhone can't recognize speech on-device, only the recording is saved. What you write outlasts what you remember — and combining makes it grow.
Screenshots
Verdict
The clearest difference is update cadence: Caliu at weekly against YAMM's every 3 weeks. Caliu also leads on device support (4 vs 1). YAMM's advantage is iOS requirement (16.4 vs 26.0). On price, ads and in-app purchases 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
Both are free to download. Caliu sells 3 in-app purchases, starting at $2.99 per month and YAMM sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Caliu ships an update weekly, YAMM every 3 weeks. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.
| Parameter | Caliu | YAMM |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Weekly — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, Mac, Apple Watch — better | iPhone |
| Requires iOS | 26.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 201 MB | 52 MB |
| Age rating | 4+ | 4+ |
| Developer | Marc Torrelles | JiHyeong Lee |
In-app purchases
Caliu
- Caliu Pro - Monthly3 Days trial$2.991 Month
- Caliu Pro - Yearly7 Days trial$17.991 Year
- Caliu Pro Lifetime$44.99
YAMM
- YAMM Premium$6.99









