Comparison

UniReader vs Satz

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

Head to head
About

UniReader

Features
Read full description

UniReader 1.10.0 UniReader opens what other apps refuse. PDF, EPUB, DjVu, CHM, MOBI, FB2, CBZ/CBR, DOC, DOCX, TXT, RTF, AZW3, PRC, LIT - 14 formats in one unified library. No more juggling between apps. --- READ WITHOUT FRICTION --- The real problem is not reading. It is everything that interrupts it: wrong format, awkward import, lost progress. UniReader exists to remove that friction. Open it, read, and pick up exactly where you left off. --- WHAT CHANGES EVERYTHING --- Absolute privacy Your documents stay on your device. No account required. No server. No tracking, no analytics, no data collection. What you read is your business alone. A real library Grid or list view, covers, folders, collections, integrated search. Filter by format, and import over your local network. Comfortable reading Day, Night, Sepia, and Paper themes; adjustable fonts and margins. Two-column EPUB, full-screen PDF, and it resumes exactly where you left off. Serious annotations Highlights, bookmarks, handwritten notes, PDF/PNG export. Optional cloud sync for reading progress and bookmarks. Catalogs and import OPDS (Gutenberg, Wikisource...), browser import on the same Wi‑Fi. Shortcuts and integrated system search. --- WHO IT IS FOR --- For anyone with hundreds of books in ten different formats who just wants to read them. For the person who annotates technical manuals in the morning and novels at night, and refuses to manage two separate apps. For researchers, students, and compulsive readers - anyone who reads seriously and wants a tool that keeps up. --- ACCESS --- Free plan DRM-free PDF and EPUB reading with essential library tools. Free forever - to explore, with no commitment. Premium All formats, cloud sync, advanced annotations, statistics about your reading, and sync with UniReader on your computer. 14 formats Β· OPDS Β· Local network import --- PRIVACY --- Your documents stay on your device. No tracking. No analytics. No data collection. UniReader is built to do one thing very well: to let you actually read. Less friction. More reading time. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Satz

Features
Read full description

Satz is more than just a book tracker; it's your personal AI reading companion designed to transform your reading journey. With Satz, you don't just log pagesβ€”you build lasting habits, archive your thoughts, and discover books tailored to your exact mood. CORE FEATURES: SATZ AI: YOUR READING COMPANION Don't know what to read next? Tell Satz AI your mood, a topic of interest, or a problem you want to solve. Our AI curates personalized recommendations and explains exactly why a book is the perfect match for you right now. THE PROMISE Give your word before you begin your reading journey. Hold the circle for 5 seconds to commit to your daily reading chain. This unique psychological trigger keeps you focused and motivated to maintain your streak. MEMORY ARCHIVE & DAILY LOGS Don't just track pagesβ€”track your growth. Log your "Satz" (sentence/thought) of the day. Save your insights and revisit your thoughts about the books you read whenever you like. DEEP ANALYTICS & STREAKS Consistency is key. Monitor your daily reading streak, track your weekly pages, and stay motivated by watching your reading habits grow through beautiful, easy-to-understand data. PREMIUM PERSONALIZATION Satz adapts to your style. Choose between premium themes like Obsidian, Classic, and Parchment. Customize typography and accent colors to make your reading library truly yours. Thousands of books. Endless knowledge. Add your first book, set your goal, and start growing every day with Satz. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

UniReader4 screens
Satz4 screens

Verdict

The call

The clearest difference is ads: UniReader at none against Satz's shown. Satz's advantage is update cadence (every 4 days vs every 3 weeks) and iOS requirement (13.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. UniReader sells 3 in-app purchases, starting at $1.99 per month and Satz sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

UniReader ships an update every 3 weeks, Satz every 4 days. The most recent releases landed on October 11, 2026 and October 18, 2026 respectively.

Scorecard3 real differences Β· 3 level
UniReader versus Satz: the parameters behind the verdict, then further details
ParameterUniReaderSatz
PriceFreeFree
Update frequencyEvery 3 weeksEvery 4 days β€” better
AdsNo β€” betterYes
In-app purchasesYesYes
DevicesiPhone, iPad, Mac β€” betteriPhone, iPod
Requires iOS17.013.0 β€” better
Further details β€” not scored
Size19 MB74 MB
Age rating4+4+
DeveloperGuglielmo PasaToprak KOC

In-app purchases

3 purchases

UniReader

Subscriptions2
  • UniReader Premium Monthly$1.991 Month
  • UniReader Premium Yearly$19.991 Year
One-time1
  • UniReader Premium Lifetime$34.99
2 purchases

Satz

Subscriptions2
  • Satz Premium Monthly$5.991 Month
  • Satz Premium Yearly$19.991 Year

Questions

Is UniReader free?
UniReader is free to download, with in-app purchases available.
Is Satz free?
Satz is free to download, with in-app purchases available.
Do UniReader or Satz have ads?
Satz shows ads; UniReader does not.
Which is updated more often, UniReader or Satz?
UniReader ships an update every 3 weeks, and Satz every 4 days. Most recently, UniReader was updated on October 11, 2026 and Satz on October 18, 2026.

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