Comparison

Synapse Reads vs PastReads

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

Head to head
About

Synapse Reads

Features
Read full description

Stop letting your reading disappear. You finish a book, feel changed by it, and three weeks later can't remember a single idea. Synapse fixes that. READING SESSIONS Open any book and start a session. Synapse tracks your reading time while you capture highlights โ€” scan a page, type a quote, or read it aloud and let AI transcribe it instantly. When you finish, see exactly how long you read, what you captured, and whether Synapse found a new connection during that session. FLASH INSIGHTS When two highlights from different books share an unexpected idea, Synapse surfaces it automatically. Powered by Claude, the connections go beyond the obvious โ€” finding threads across books you read years apart that you never would have noticed yourself. THREE WAYS TO CAPTURE Scan physical pages with your camera. Type or paste quotes directly. Or hold the mic and read a passage aloud โ€” Whisper transcribes it and shows you the text to confirm. However you read, capturing a highlight takes seconds. CHAT WITH YOUR LIBRARY Ask your entire collection a question. "What do my books say about focus?" "Find a quote I saved about habits." Every answer comes from your own highlights โ€” not the internet. IMPORT YOUR KINDLE HIGHLIGHTS Upload My Clippings.txt and your entire Kindle library arrives instantly โ€” with covers, metadata, and connection checks running automatically. WHO IS THIS FOR? Non-fiction readers who want their highlights to actually do something. People who finish books and want to remember them. Anyone building a reading habit who wants to see it grow. Download Synapse and make everything you read count.

About

PastReads

Read full description

PastReads is your all-in-one library for everything you read, see, and hear. Your free library helps you save, organize, and rediscover the best ideas. Whether you are reading books, browsing the web, listening to podcasts, or visiting museums, PastReads helps you capture what matters and find it again when you need it. ORGANIZE YOUR LIBRARY โ–  Capture highlights and notes in one place โ–  Add quick notes and thoughts โ–  Organize your content with collections, tags, and favorites โ–  Filter & search your entire library with full-text search IMPORT YOUR CONTENT โ–  Import highlights from Kindle, Kobo, Apple Books, Readwise, KOReader, and more โ–  Save content with details like author, location, and date โ–  Keep your reading history connected in one timeline YOUR (E)BOOKS IN ONE PLACE โ–  Keep track of everything you read โ–  Search millions of books and add them to your library โ–  Turn passages from physical books into digital highlights using the camera book highlighter SAVE IDEAS BEYOND BOOKS โ–  Capture highlights from articles, museum visits, and more โ–  Use your camera to capture and select text from the real world REMEMBER YOUR HIGHLIGHTS โ–  Get a daily recap of highlights so you don't forget what you read โ–  Complete streaks to stay motivated ACCESS FROM ANYWHERE โ–  Use PastReads on your phone or via web โ–  Synchronize ebook highlights using the desktop app BUILT FOR IOS Add PastReads widgets to your Home Screen, view highlights of the day, save content while browsing, and get customizable push notifications to revisit key ideas. JOIN NOW Join thousands of readers and start remembering your highlights. PastReads is free to use. You can upgrade to PastReads Pro for: โ–  more and better recaps with custom schedules and spaced repetition โ–  unlimited tags and collections โ–  advanced filtering โ–  monthly book summaries โ–  exports to Notion, PDF, and Markdown โ–  and much more -- Terms of use: https://www.pastreads.com/terms Apple EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Synapse Reads4 screens
PastReads4 screens

Verdict

The call

The clearest difference is in-app purchases: Synapse Reads at none against PastReads's 2. Synapse Reads also leads on iOS requirement (15.1 vs 17.0). PastReads's advantage is update cadence (every 10 days vs every 4 weeks). On price, ads 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. PastReads sells 2 in-app purchases, starting at $4.99 per month. Synapse Reads asks for nothing beyond the download.

UpkeepUpdate frequency

Synapse Reads ships an update every 4 weeks, PastReads every 10 days. The most recent releases landed on October 11, 2026 and October 23, 2026 respectively.

Scorecard3 real differences ยท 3 level
Synapse Reads versus PastReads: the parameters behind the verdict, then further details
ParameterSynapse ReadsPastReads
PriceFreeFree
Update frequencyEvery 4 weeksEvery 10 days โ€” better
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 โ€” better17.0
Further details โ€” not scored
Size32 MB15 MB
Age rating4+12+
DeveloperAnsh DavePastReads

In-app purchases

None

Synapse Reads

No in-app purchases

2 purchases

PastReads

Subscriptions2
  • PastReads Pro (Monthly)$4.991 Month
  • PastReads Pro (Annual)$49.991 Year

Questions

Is Synapse Reads free?
Synapse Reads is free to download, with no in-app purchases.
Is PastReads free?
PastReads is free to download, with in-app purchases available.
Do Synapse Reads or PastReads have ads?
Neither Synapse Reads nor PastReads shows ads.
Which is updated more often, Synapse Reads or PastReads?
Synapse Reads ships an update every 4 weeks, and PastReads every 10 days. Most recently, Synapse Reads was updated on October 11, 2026 and PastReads on October 23, 2026.

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