Comparison

n+otes vs duOS

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

Head to head
About

n+otes

Capture thoughts and ideas instantly with a simple interface. Secure your notes with a private lock feature. Optional subscription removes ads and supports development.

Highlights
  • Quick note-taking
  • Private note lock
  • Ad-free experience (subscription)
  • Easy to use interface
Features
Read full description

Great for those quick notes! Just tap the + button and start typing! Subscribe for the Ad-free Experience: To support further development and maintenance of the app, we have a small subscription so you can use the app without advertising: A monthly, 3-monthly or yearly purchase will be applied to your iTunes account on confirmation. Subscriptions will automatically renew unless canceled within 24-hours before the end of the current period. You can cancel anytime with your iTunes account settings. Any unused portion of a free trial period, if offered will be forfeited if you cancel a subscription. Terms: http://rieu.co.nz/terms.html Privacy Policy: http://rieu.co.nz/privacy.html

About

duOS

Features
Read full description

DuOS — Two (or more!) people. One OS. A shared life operating system for couples, families and close friends. Plan together, remember together, carry the mental load together with an AI that actually knows what's on both your plates. DuOS replaces the chaos of group chats, scattered calendars and half-finished to-do apps with one calm, shared space. Whether you're a couple coordinating daily life, a family running a household, or close friends planning a trip, everything lives in one place that everyone can see and update. WHY DUOS Most apps make you organise alone. DuOS is built for the way real life actually works — together. Your projects, routines, calendar, notes and reminders all live in a shared space, with a built-in AI assistant that has full context of what's going on in both of your lives. No more "did you book the dentist?" No more two people writing the same shopping list. No more one person carrying everything in their head. FOR COUPLES Built first and foremost for two. Share daily tasks, plan trips together, manage your home, track routines, and send each other little nudges throughout the day — kisses, hugs, flowers, love notes. Productivity meets warmth. FOR FAMILIES AND FRIENDS Upgrade to DuOS Premium and bring up to 6 people into your shared space. Perfect for families coordinating school runs, holidays and home projects, or close friends planning a wedding, a move or a big trip. WHAT'S INSIDE Shared projects — break big plans into tasks, assign to anyone, track together Smart calendar — your shared events plus optional sync with Apple Calendar Routines — recurring habits and household tasks that reset automatically Lists and notes — sticky notes for the fridge, checklists that auto-populate, packing lists, recipes AI assistant — ask in natural language: "what's on for the weekend?" or "add bread, milk and eggs to the shopping list" Daily briefing — wake up to a short summary of what matters today Love notes and nudges — a small inbox of affection, custom-illustrated Virtual pet — a shared companion that grows as you both stay active in the app Beautiful themes — Dawn and Dusk modes, hand-tuned for warmth FREE FOREVER DuOS is free to use for two people, with everything you need to build the habit. Premium unlocks more members, unlimited projects and lists, and an unlimited AI assistant. PRIVATE BY DESIGN Your space is yours. No public feeds. No strangers. No third-party data sharing. Your shared life stays between the people you invite. DuOS — for the people you do life with. ------------------------------- Privacy Policy: https://moonscape.app/duos/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

n+otes4 screens
duOS4 screens

Verdict

The call

The clearest difference is device support: n+otes at 4 against duOS's 2. n+otes also leads on iOS requirement (13.0 vs 17.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. n+otes sells 4 in-app purchases, starting at $0.49 per month and duOS sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Scorecard2 real differences · 8 level
n+otes versus duOS: the parameters behind the verdict, then further details
Parametern+otesduOS
PriceFreeFree
Rating4.7 (45K ratings) — better—
Positive reviews64.2% of reviews—
Number of ratings45K — better—
Update frequencyFortnightly—
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size25 MB19 MB
Age rating4+4+
DeveloperRIEU LimitedMoonscape Software FZCO

Bugs and requests

n+otes

Reported bugs

4 issues
  • Notes disappearing or getting lost
  • Inability to delete notes on Apple Watch
  • Scrolling issues and text freezing at the bottom
  • Inconsistent behavior after updates

Requested features

5 requests
  • Ability to sync notes across devices
  • More font and formatting options
  • Folder or category organization
  • Voice-to-text functionality
  • Ability to insert images and attachments

duOS

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

n+otes

Subscriptions3
  • Ad-free Experience (Monthly)$0.491 Month
  • Ad-free Experience (3 Months)$0.993 Months
  • Ad-free Experience (1 Year)$3.991 Year
One-time1
  • Remove Ads$19.99
2 purchases

duOS

Subscriptions2
  • DuOS Premium Monthly14 Days trial$4.991 Month
  • DuOS Premium Annual14 Days trial$39.991 Year

Questions

Is n+otes free?
n+otes is free to download, with in-app purchases available.
Is duOS free?
duOS is free to download, with in-app purchases available.
Do n+otes or duOS have ads?
Both n+otes and duOS show ads.

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