Comparison

Cloud Outliner vs References On Tap

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

Head to head
About

Cloud Outliner

This app helps you structure your thoughts and tasks into clear, organized lists. It offers visual organization, synchronization across devices, and rich editing features for easy management of your ideas and plans. Share your organized content easily with others.

Highlights
  • Multi-level document management
  • Drag & drop reordering
  • Swipe to indent
  • Rich text formatting
  • iCloud synchronization
  • Export to PDF and OPML
  • Password protection
Features
Read full description

Cloud Outliner helps you turn ideas and tasks into clear, structured lists. Capture thoughts instantly, organize them visually, and keep everything synchronized across your Mac, iPhone, and iPad with iCloud. With rich editing, intuitive gestures, and easy sharing, staying organized has never been easier. Install Cloud Outliner and bring clarity to your work and life. Key Features Organize and Protect • Multi-level document manager • Color tags for quick highlights • Password protection • Custom templates • Duplicate documents Powerful Outline Editor • Drag & drop to reorder • Swipe to change indentation • Multi-select for bulk actions • Checkboxes and auto-numbering • Notes for list items • Rich text formatting and highlighting • Collapse or expand any level • Filters, undo/redo, copy/paste • Link and phone number detection • Read-only mode • Wireless keyboard support with shortcuts Sync and Share • Sync across iPhone, iPad, and Mac with iCloud* • Mac version available • Export to PDF, OPML, plain text • Import OPML files • Print via AirPrint • Share by email or messenger Extra • Light and Dark mode • Clean, intuitive design • Portrait and landscape support * Sync with Mac requires Cloud Outliner Pro for macOS, sold separately.

About

References On Tap

This app helps you find, display, and import reference information and PDFs from various academic databases. Organize your references into groups, perform advanced searches, and sync your library across devices. It offers both a one-time purchase for core features and a subscription for cloud syncing.

Highlights
  • Search academic databases (arXiv, Google Scholar, PubMed, etc.)
  • Import reference information and PDFs
  • Organize references in static and smart groups
  • Advanced boolean and full-text search options
  • Sync libraries across iOS and macOS devices via iCloud
  • Share references for reading or import
Features
Read full description

••• Check out Bookends - References' big brother ••• References searches arXiv, Google Books, Google Scholar, JSTOR, the Library of Congress, PubMed, PubMed Central, and Semantic Scholar to find, display, and import reference information and pdfs of the full article (if you have access privileges). You can search your personal reference library, organize your references in groups (static and smart), and share references in a form suitable for reading or importing into desktop reference management applications. Many features are optimized for reference retrieval and management (advanced boolean searches, search for Full Text or Free Full text, recall recent searches, etc.). Use iCloud to sync all your libraries and attachments across iOS and macOS devices, and have full access to your references and sources when you're on the go. Standard, one-time purchase ($4.99): • No limit on searches or importing. Premium, yearly subscription ($4.99). Requires a Standard purchase. • Cloud sync with all your iOS and macOS devices. Subscription is for one year and can be auto-renewable. The subscription can be managed in iOS -> Settings > iTunes & App Store > Subscriptions. The subscription might renew if it wasn't canceled more than 24 hours before the renewal date. If the subscription is not renewed, Premium will be disabled. Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Cloud Outliner4 screens
References On Tap4 screens

Verdict

The call

The clearest difference is review sentiment: Cloud Outliner at 80% against References On Tap's 50%. References On Tap's advantage is rating (4.7 vs 4.5) and update cadence (every 2 months vs every 6 months). On price, ratings volume, 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. Cloud Outliner sells 1 one-off in-app purchase and References On Tap sells 2 in-app purchases, starting at $4.99 per year. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

References On Tap holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 751 and 304 respectively. Written reviews complicate that: 80% of Cloud Outliner's written reviews are positive against 50% of References On Tap's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Cloud Outliner ships an update every 6 months, References On Tap every 2 months. The most recent releases landed on September 22, 2026 and September 21, 2026 respectively.

Scorecard3 real differences · 7 level
Cloud Outliner versus References On Tap: the parameters behind the verdict, then further details
ParameterCloud OutlinerReferences On Tap
PriceFreeFree
Rating4.5 (751 ratings)4.7 (304 ratings) — better
Positive reviews80.0% of reviews — better50.0% of reviews
Number of ratings751 — better304
Update frequencyEvery 6 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS15.015.0
Further details — not scored
Size23 MB68 MB
Age rating4+4+
DeveloperDenys IevenkoReferencesOnTap

Customer experience

Cloud Outliner

All ratings751 ratings
Positive91.6%
Neutral3.2%
Negative5.2%
Written reviews420 reviews
Positive80.0%
Neutral9.0%
Negative11.0%

References On Tap

All ratings304 ratings
Positive93.1%
Neutral4.9%
Negative2.0%
Written reviews12 reviews
Positive50.0%
Neutral8.3%
Negative41.7%

Bugs and requests

Cloud Outliner

Reported bugs

3 issues
  • Crashes and freezes on certain devices
  • Issues with restoring Pro purchases on new devices
  • Inconsistent syncing behavior between iOS and macOS versions

Requested features

5 requests
  • Add support for attaching files and images
  • Improve export options beyond OPML
  • Introduce a true dark mode with black text on dark background
  • Add keyboard shortcuts for common actions
  • Enhance the ability to move and reorganize outline items

References On Tap

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Cloud Outliner

One-time1
  • Unlock Pro Features$4.99
2 purchases

References On Tap

Subscriptions1
  • Premium$4.991 Year
One-time1
  • Standard$4.99

Questions

Is Cloud Outliner free?
Cloud Outliner is free to download, with in-app purchases available.
Is References On Tap free?
References On Tap is free to download, with in-app purchases available.
Which has better reviews, Cloud Outliner or References On Tap?
References On Tap is rated higher. Cloud Outliner averages 4.5 out of 5 from 751 ratings, while References On Tap averages 4.7 from 304 ratings.
Do Cloud Outliner or References On Tap have ads?
Neither Cloud Outliner nor References On Tap shows ads.
Which is updated more often, Cloud Outliner or References On Tap?
Cloud Outliner ships an update every 6 months, and References On Tap every 2 months. Most recently, Cloud Outliner was updated on September 22, 2026 and References On Tap on September 21, 2026.

Other comparisons