Comparison

Wunder vs Moss Reading (青苔阅读)

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

Head to head
About

Wunder

This app allows you to import your own EPUB, PDF, and TXT files to a virtual bookshelf. Read your books, take notes, highlight passages, and even use a read-aloud feature to rest your eyes.

Highlights
  • Import own EPUB, PDF, TXT files
  • Virtual 3D bookshelf organization
  • Read-aloud playback
  • Highlighting and underlining
  • Annotation and excerpt collection
  • Shareable note cards
Features
Read full description

Wunder is an eBook reader for your own PDF, EPUB, and TXT files. Import your books into a quiet bookshelf and read on iPhone and iPad, or use read-aloud playback when you want to rest your eyes. Add bookmarks, highlight, underline, annotate, and collect excerpts as you read. Turn selected passages into shareable note cards, while your bookshelf, reading progress, and notes stay organized on your device. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://app.notion.com/p/Wunder-Privacy-Policy-36b9645c47b680179361c6bb3be81b07

About

Moss Reading (青苔阅读)

This app offers a native reading experience for various file formats, including EPUB, TXT, and comics. Enjoy on-device audiobooks, customizable typography, and seamless multi-device sync via iCloud. It prioritizes user privacy with no ads or data collection.

Highlights
  • Import EPUB, MOBI, TXT, PDF, CBZ/CBR
  • On-device audiobook playback
  • Customizable typography and backgrounds
  • Notes and highlights with export options
  • Multi-device sync via iCloud
  • Ad-free and privacy-focused
Features
Read full description

Moss Reading is a reading tool built around a native reading experience. Audiobooks can run fully on-device, so you can enjoy natural read-aloud even without a network. A clean, beautiful interface with adjustable reading backgrounds and typography gives you the best reading experience. Full iPad support. Key features · Local reading: import EPUB, MOBI, TXT, PDF, comic archives (CBZ / CBR / RAR) and single images — all in one library, readable offline. · Two layout engines, switch anytime: the original EPUB style engine renders the XHTML and CSS inside the package exactly as published, keeping the publisher's fonts, indents and illustration layout; turn it off and the app re-typesets the book as a Chinese-friendly layout. Bookmarks, highlights and reading progress are preserved when you switch. · Page turning: cover, curl, slide, vertical scroll and right-to-left manga paging, plus auto-scroll and auto-turn timers. · Notes and highlights: long-press to select text and take a note, with highlights, bookmarks and annotations; export to Markdown, TXT or EPUB. · Listen: three engines — system voice, on-device voice and online voice — with chapter pre-reading and a sleep timer. · Multi-device sync: sync your shelf, progress and notes through your own iCloud; content never passes through the developer's servers. · Appearance: themes and wallpapers, custom themes, menu styles, fine-grained font, size and line-spacing controls, and selectable home screen icons. · Home: customizable reading plans and reading time. · Liquid Glass (iOS 26 and later): panels, capsules and the home bar share one glass material; if it feels too bright or your device is older, switch back to the standard material with one tap in Settings. Privacy No ads, no third-party tracking, no personal data collection, no sign-up required. Apart from iCloud sync that you turn on yourself, and font or voice model downloads you choose to trigger, your data stays on your device. Important This app does not include any books, comics or website sources, and has no content library or server-side resources. Sources and texts must be added by the user. Users should comply with the terms of service of the source sites and the laws of their location, and read only content they are entitled to access. A disclaimer and privacy notice are shown on first launch. Terms & Privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ User Agreement & Disclaimer: https://moss.tudoubook.top/agreement Privacy Policy: https://moss.tudoubook.top/privacy

Screenshots

Wunder4 screens
Moss Reading (青苔阅读)4 screens

Verdict

The call

Wunder and Moss Reading (青苔阅读) are too close to call on the numbers: across 8 compared parameters — price, review sentiment, update cadence and ads among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Wunder sells 3 in-app purchases, starting at $2.99 per month and Moss Reading (青苔阅读) sells 4 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 days. The most recent releases landed on October 31, 2026 and November 1, 2026 respectively.

ScorecardNo meaningful differences
Wunder versus Moss Reading (青苔阅读): the parameters behind the verdict, then further details
ParameterWunderMoss Reading (青苔阅读)
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings1 — better—
Update frequencyEvery 2 daysEvery 2 days
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better17.0
Further details — not scored
Size338 MB50 MB
Age rating4+12+
Developer国城 林健伟 周

Customer experience

Wunder

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Moss Reading (青苔阅读)

Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Wunder

Subscriptions2
  • Reader Member$2.991 Month
  • Deep Listening$4.991 Month
One-time1
  • Wunder Lifetime$9.99
4 purchases

Moss Reading (青苔阅读)

Subscriptions2
  • 月度会员$0.991 Month
  • 年度会员$7.991 Year
One-time2
  • 专业版永久解锁(限时特惠)$9.99
  • 专业版永久解锁$12.99

Questions

Is Wunder free?
Wunder is free to download, with in-app purchases available.
Is Moss Reading (青苔阅读) free?
Moss Reading (青苔阅读) is free to download, with in-app purchases available.
Do Wunder or Moss Reading (青苔阅读) have ads?
Neither Wunder nor Moss Reading (青苔阅读) shows ads.
Which is updated more often, Wunder or Moss Reading (青苔阅读)?
Wunder ships an update every 2 days, and Moss Reading (青苔阅读) every 2 days. Most recently, Wunder was updated on October 31, 2026 and Moss Reading (青苔阅读) on November 1, 2026.

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