Comparison

Nautilus vs UC Exp Tracker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Nautilus

This research-focused browser allows users to read the web, annotate pages, and interact with AI for summaries and explanations. It also facilitates document creation and organization, syncing across devices.

Highlights
  • Web browsing with research tools
  • AI-powered page summarization and translation
  • Direct annotation on web pages
  • Export markup as PDF or Word
  • Read and annotate PDFs
  • Document drafting and organization
  • AI writing assistance
Features
Read full description

Nautilus is a web browser built for research. Read the web, mark it up, ask AI about what you find, and write up your work without leaving the app, on iPad and iPhone. Students, researchers, journalists, writers and professionals use it to go from first search to finished document in one place. Browse with research tools built in Open pages in tabs, pin the ones you come back to, and keep sites in bookmarks and history. Switch to Reader for a clean page without distractions, or let Reader turn on automatically. Request the desktop version of a site when you need it. Understand any page Ask AI about the page you're reading. Summarize a long article, or translate a page into your language or into English, then switch back to the original at any time. Circle it with Magic Lasso Circle a passage, chart or image on a page. Ask AI to explain it, ask your own question, highlight it, or save it as a clip on your Clippings board so your findings stay together. Mark up the web Draw and write directly on web pages. Export a page with your markup as a PDF in A4, Letter or Legal size, or as a Word document, Markdown, RTF, plain text or an image. Read and annotate your sources Open PDFs, papers and reports in tabs beside your web pages. Highlight, write in the margins, add comments, and compare two documents side by side. Fill and sign forms, scan paper pages into PDFs, measure scaled drawings, and hide sensitive text before you share. Write it up Draft in Word documents, RTF, Markdown or plain text. Plan a long paper or book section by section on a Corkboard, keep your sources open next to the draft, take snapshots of earlier versions, and compile everything into one document or ebook. Study Projects gather the readings for each subject in one place. AI help from first idea to final draft Chat through ideas, ask about your own documents, and get explanations. Rewrite, simplify, correct spelling and grammar, change the tone, or translate what you've written. Also in Nautilus Record lectures and interviews and create transcripts. Connect ideas on whiteboards with sticky notes, organize plans in outlines, and work through calculations and charts in Math Notebooks. Your library, safe and in sync Keep documents in folders and notebooks with covers, and find anything with search. Export to PDF, Word, HTML, EPUB and more. Sync with iCloud, Dropbox, Box, Google Drive or WebDAV. Automatic saving, recovery and backups protect your work, and passcodes lock the app or private folders. Formerly Notes Writer Pro Nautilus is the new name of Notes Writer Pro. Your existing PDF notes and outlines open here. Privacy Policy http://www.noteswriter.com/Kairoos_Privacy_Policy.html Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

UC Exp Tracker

Features
Read full description

This app will make you better at finding expiring products.

Screenshots

Nautilus4 screens
UC Exp Tracker3 screens

Verdict

The call

The clearest difference is in-app purchases: UC Exp Tracker at none against Nautilus's 3. On price, update cadence, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Nautilus sells 3 in-app purchases, starting at $3.99 per month. UC Exp Tracker asks for nothing beyond the download.

UpkeepUpdate frequency

Nautilus ships an update every 11 days, UC Exp Tracker weekly. The most recent releases landed on November 14, 2026 and November 9, 2026 respectively.

Scorecard1 real difference · 9 level
Nautilus versus UC Exp Tracker: the parameters behind the verdict, then further details
ParameterNautilusUC Exp Tracker
PriceFreeFree
Rating4.6 (3.2K ratings) — better—
Positive reviews48.2% of reviews—
Number of ratings3.2K — better—
Update frequencyEvery 11 daysWeekly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad — betteriPhone
Requires iOS26.026.0
Further details — not scored
Size502 MB3 MB
Age rating17+4+
DeveloperKairoos Solutions SLAhmed Alzarooni

Bugs and requests

Nautilus

Reported bugs

5 issues
  • Notes randomly disappearing
  • Formatting issues with text and images
  • Unreliable audio recording and playback
  • Compatibility problems with newer iOS versions
  • Inability to transfer files between free and pro versions

Requested features

5 requests
  • Handwriting recognition
  • Improved eraser and shape tools
  • Customizable keyboard and toolbar
  • Better integration with cloud storage
  • Ability to rotate and resize images

UC Exp Tracker

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Nautilus

Subscriptions2
  • Nautilus Unlock All and AI3 Days trial$3.991 Month
  • Nautilus Unlock All and AI3 Days trial$14.991 Year
One-time1
  • Nautilus Pro Lifetime$14.99
None

UC Exp Tracker

No in-app purchases

Questions

Is Nautilus free?
Nautilus is free to download, with in-app purchases available.
Is UC Exp Tracker free?
UC Exp Tracker is free to download, with no in-app purchases.
Do Nautilus or UC Exp Tracker have ads?
Neither Nautilus nor UC Exp Tracker shows ads.
Which is updated more often, Nautilus or UC Exp Tracker?
Nautilus ships an update every 11 days, and UC Exp Tracker weekly. Most recently, Nautilus was updated on November 14, 2026 and UC Exp Tracker on November 9, 2026.

Other comparisons