Comparison

ReadSync vs Zoro.

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

Head to head
About

ReadSync

Features
Read full description

ReadSync remembers where you stopped reading โ€” on every device. Open a PDF on your Mac, read to page 120, then pick up your iPhone. ReadSync opens the same document on the same page. Your highlights, notes and bookmarks are already there. WHY READSYNC โ€ข Your reading position syncs automatically through iCloud โ€” in the free version too โ€ข No account to create, no subscription, no company server holding your files โ€ข Works completely offline โ€” syncing is a layer on top, never a requirement PICK UP WHERE YOU LEFT OFF โ€ข A Continue Reading row at the top of your library, most recent first โ€ข A Home Screen widget that opens the document on the page you left โ€ข Nothing to press: the page is saved as you read and travels with you โ€ข Handoff: the document open on your Mac appears on your iPhone, and opens on the same page READING โ€ข A quiet reader that hides its controls while you read โ€ข A reading lock that turns off selection, highlights and notes, so you can scroll and zoom without triggering anything by accident โ€ข Keep the screen awake while a document is open โ€ข Night mode that darkens the page without draining the colour from your highlights โ€ข Single or two-page layout, vertical or horizontal scrolling โ€ข Adjustable default zoom โ€ข Translate any passage you select into your own language, on your device with Apple's built-in translation โ€ข Look up any word in the dictionary without leaving the page โ€ข Password-protected PDFs open too โ€” remember the password once, in your iCloud Keychain, and your other devices open them without asking HIGHLIGHTS AND NOTES โ€ข Five highlight colours โ€ข Attach a note to any passage โ€ข Every highlight and note in one list โ€” tap to jump straight to the page โ€ข Export everything from a document as a single file, to Notes, Mail or Files โ€ข Nothing is written into the PDF itself; your original file stays untouched FINDING YOUR PLACE โ€ข Full-text search inside the document โ€ข The PDF's own table of contents โ€ข Bookmarks for the pages you want to come back to YOUR LIBRARY โ€ข Add files from Files or iCloud Drive โ€ข Open a PDF in ReadSync from Mail, Safari, Messages or any app's share sheet โ€ข Leave a file where it is, or copy it into ReadSync so it syncs across your devices โ€ข Cover, progress and page count at a glance โ€ข Sort by last read, title or date added โ€ข Search your library by title READING STATS โ€ข Total reading time, and how much of it was this week โ€ข A chart of the last seven days โ€ข Progress for every document you have started FREE AND PRO The free version is a whole reader, not a demo: iCloud sync, night mode, search, table of contents, bookmarks, translation and all five highlight colours, with room for 5 documents and 10 highlights or notes in each one. ReadSync Pro lifts both limits and opens reading stats and note export. It is a one-time purchase โ€” there is no subscription. A limit only ever stops you adding something new. Everything already in your library stays open, in full, whether you buy or not. PRIVACY ReadSync is built entirely with Apple's own frameworks and stores everything in your private iCloud database. Your documents are never uploaded to anyone else's server. Anonymous usage statistics are sent only if you agree when asked, and never include your files, page contents, notes or highlights.

About

Zoro.

This app helps users manage tasks by focusing on completion rather than just collection. It offers features like effort sizing, work-in-progress limits, and a weekly review to help individuals and freelancers cut through their to-do lists effectively.

Highlights
  • Task prioritization
  • Effort sizing (S/M/L)
  • Work-in-progress limits
  • Visible task aging
  • Weekly review and reflection
  • Cross-project task board
  • iCloud sync
Features
Read full description

Most to-do apps help you collect tasks. Zoro helps you cut them. Zoro is a task manager for people who run more than one project at once: founders, freelancers, builders wearing too many hats. It keeps the few agile ideas that pay off for one person (priorities, effort sizes, work-in-progress limits, a weekly review) and drops the ceremony. No sprints, no story points, no velocity charts. WORK ACROSS PROJECTS, NOT INSIDE THEM Two spaces, personal and business, hold as many projects as you need. Every task carries a priority (P1โ€“P3) and an effort size (S/M/L). One board holds product work next to invoices next to the launch plan, and the highest-leverage work rises to the top no matter which project it belongs to. THE METHOD โ€ข Three things today: you can only finish a few things a day, so Zoro asks for three โ€ข Size by effort, not time: S, M, L. Estimates in minutes are a trap โ€ข One cut at a time: a work-in-progress limit keeps you finishing before starting โ€ข Let nothing rot: tasks age visibly, so the work you're avoiding stares back โ€ข Sharpen weekly: a Friday review that reads your week back to you PRIVATE BY ARCHITECTURE Your tasks live in your own iCloud, and Apple syncs them between your devices. Zoro has no servers that hold your data, no account to create, no analytics, no tracking. The App Privacy label reads "Data Not Collected" because there is nothing to collect. We couldn't read your tasks if we wanted to. THE WEEKLY REVIEW Every Friday, Zoro assembles the facts: what you cut, what you added, what's been open too long, what you keep deferring, whether the big things are stalling. You reflect (plus, minus, next) and close the week. Over months, History becomes the honest story of how you actually work, and Trends shows the shape underneath. FREE, PROPERLY The whole method is free: unlimited tasks, unlimited projects, iCloud sync across iPhone, Mac, and the web, effort sizing, aging, the weekly reflection. No task caps. Ever. ZORO PRO Pro goes deeper into the practice: the full weekly insight cards (aging, avoidance, effort mix), every week kept in History, Trends over time, the stats dashboard, subtasks, and custom statuses. $2.99/month, $19.99/year, or $59.99 once, with a 14-day free trial. Zoro is for people who want fewer tasks, done. Not more tasks, managed. TERMS & PRIVACY Terms of Use (EULA): https://www.getzoro.app/terms Privacy Policy: https://www.getzoro.app/privacy

Screenshots

ReadSync4 screens
Zoro.4 screens

Verdict

The call

The clearest difference is update cadence: Zoro. at every 5 days against ReadSync's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. ReadSync sells 1 one-off in-app purchase and Zoro. sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

ReadSync ships an update every 3 weeks, Zoro. every 5 days. The most recent releases landed on November 13, 2026 and November 5, 2026 respectively.

Scorecard1 real difference ยท 7 level
ReadSync versus Zoro.: the parameters behind the verdict, then further details
ParameterReadSyncZoro.
PriceFreeFree
Positive reviewsโ€”100.0% of reviews
Update frequencyEvery 3 weeksEvery 5 days โ€” better
AdsNoNo
In-app purchasesYesYes
Monetizationโ€”Freemium
DevicesiPhone, iPad, Mac โ€” betteriPhone, Mac
Requires iOS18.017.0 โ€” better
Further details โ€” not scored
Size4 MB19 MB
Age rating+44+
DeveloperAlper AlbayrakLeadVibe LLC

In-app purchases

1 purchases

ReadSync

One-time1
  • Unlock Pro$7.99
3 purchases

Zoro.

Subscriptions2
  • zoro Pro Monthly Subscription14 Days trial$2.991 Month
  • Zoro Pro (Annual)14 Days trial$19.991 Year
One-time1
  • Zoro Pro (Lifetime)$59.99

Questions

Is ReadSync free?
ReadSync is free to download, with in-app purchases available.
Is Zoro. free?
Zoro. is free to download, with in-app purchases available.
Do ReadSync or Zoro. have ads?
Neither ReadSync nor Zoro. shows ads.
Which is updated more often, ReadSync or Zoro.?
ReadSync ships an update every 3 weeks, and Zoro. every 5 days. Most recently, ReadSync was updated on November 13, 2026 and Zoro. on November 5, 2026.

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