Comparison

References On Tap vs Flow

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

Head to head
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/

About

Flow

Features
Read full description

Flow is an AI-powered focus planner designed to help you overcome procrastination and planning anxiety. Simply enter your goal, and Flow will automatically break it down into actionable tasks using intelligent planning and the Pomodoro technique. Key Features: • AI-generated task planning • Smart goal decomposition • Pomodoro-based focus sessions • Human-in-the-loop editing for full control Start your work without overthinking. Let Flow guide you from planning to execution.

Screenshots

References On Tap4 screens
Flow4 screens

Verdict

The call

The clearest difference is in-app purchases: Flow at none against References On Tap's 2. Flow also leads on update cadence (every 3 weeks vs every 2 months) and iOS requirement (13.0 vs 15.0). References On Tap's advantage is device support (4 vs 2). On price and ads 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. References On Tap sells 2 in-app purchases, starting at $4.99 per year. Flow asks for nothing beyond the download.

UpkeepUpdate frequency

References On Tap ships an update every 2 months, Flow every 3 weeks. The most recent releases landed on October 21, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 6 level
References On Tap versus Flow: the parameters behind the verdict, then further details
ParameterReferences On TapFlow
PriceFreeFree
Rating4.7 (304 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings304 — better—
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size68 MB57 MB
Age rating4+4+
DeveloperReferencesOnTapWing Sum LEE

In-app purchases

2 purchases

References On Tap

Subscriptions1
  • Premium$4.991 Year
One-time1
  • Standard$4.99
None

Flow

No in-app purchases

Questions

Is References On Tap free?
References On Tap is free to download, with in-app purchases available.
Is Flow free?
Flow is free to download, with no in-app purchases.
Do References On Tap or Flow have ads?
Neither References On Tap nor Flow shows ads.
Which is updated more often, References On Tap or Flow?
References On Tap ships an update every 2 months, and Flow every 3 weeks. Most recently, References On Tap was updated on October 21, 2026 and Flow on October 25, 2026.

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