Caliu vs SA_agent
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
Read full descriptionHide full description
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
SA_agent
Read full descriptionHide full description
SA_agent is a Safari Web Extension for researchers who use Google Scholar on iPhone and iPad. It adds local journal context to supported result pages. A 7-day free trial, then $4.99 per year, unlocks the extension. Summaries use Apple Intelligence on your device. RESEARCH WITH LOCAL JOURNAL CONTEXT • See color-coded SJR quartiles and available JCR, CAS, CiteScore, indexing, and discipline-list fields beside supported Scholar results. • Match journals on device with an ISSN hit, a result cache, a Bloom filter, a sorted prefix index, a token index, and a trigram index that checks plausible titles with a banded edit-distance test. • Search more than 35,000 bundled journals by title or ISSN without contacting a journal-ranking service. • Choose, reorder, and hide ranking badges to match your workflow. • Import a private custom journal list from CSV or JSON and display its ranks alongside bundled data. Custom datasets stay in extension-local storage. OPTIONAL AI RESEARCH TOOLS • Create focused paper summaries from Scholar results. • Choose a 30–1,000-word target and Academic, Formal, or Casual tone. • Regenerate or improve a summary, then copy it or download it as text. • Connect an optional Zotero Web API account, format up to 50 library items in APA, Chicago, MLA, or Harvard style, and generate a downloadable literature-review draft. • Summaries and literature reviews are created with Apple Intelligence on your device. SUBSCRIPTION Start a 7-day free trial in the SA_agent app, then subscribe for $4.99 per year. Apple confirms the price before the trial begins. Cancel during the trial and you will not be charged. An active trial or subscription unlocks Scholar rankings, Journal Search, custom datasets, summaries, and Zotero literature reviews. You do not paste an extension token. Earlier credit packs do not unlock the subscription. PRIVACY BY ACTION Journal matching, ranking lookup, and custom datasets are processed locally. Summaries and literature reviews use Apple Intelligence on your device and are not sent to an SA Agent server. Optional Zotero credentials are used for Zotero API requests. SA_agent does not sell personal information, collect general browsing history, or run advertising analytics. See the Privacy Policy for complete details. GET STARTED 1. Open SA_agent and start the 7-day free trial. After the trial, the subscription is $4.99 per year. 2. Enable the SA_agent extension in Safari and allow access to supported Google Scholar pages. 3. Open the extension Options page to choose badges, search journals, add a custom dataset, or connect Zotero. Availability of optional ranking fields depends on the licensed data included in the installed release. SA_agent is intended for academic research workflows. Google Scholar and Zotero are trademarks of their respective owners. SA_agent is not affiliated with or endorsed by Google Scholar or Zotero. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://swiphtgroup.com/sa-agent/privacy/
Screenshots
Verdict
The clearest difference is update cadence: Caliu at weekly against SA_agent's every 3 weeks. SA_agent's advantage is iOS requirement (15.0 vs 26.0). On price, 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
Both are free to download. Caliu sells 3 in-app purchases, starting at $2.99 per month and SA_agent sells 4 in-app purchases, starting at $4.99 per year. Whichever you choose, the download price is not the number that matters.
Caliu ships an update weekly, SA_agent every 3 weeks. Both last shipped on October 25, 2026.
| Parameter | Caliu | SA_agent |
|---|---|---|
| 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 | iPhone, iPad, iPod, Mac, Vision Pro — better |
| Requires iOS | 26.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 201 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Marc Torrelles | 鹏帆 常 |
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
SA_agent
- SA_agent Annual7 Days trial$4.991 Year
- SA Agent Credits$0.99
- SA Agent Credits$4.99
- SA Agent Credits$19.99









