Comparison

GoodReader PDF Editor & Viewer vs KarmaBuilder

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

Head to head
About

GoodReader PDF Editor & Viewer

This app offers robust PDF editing and viewing capabilities, alongside comprehensive file management tools. It allows users to annotate PDFs, manage files from various cloud services, and secure sensitive data with advanced encryption. Enjoy a superior reading experience with features like PDF Reflow and split-screen viewing.

Highlights
  • PDF annotation and editing
  • Extensive file format support
  • Cloud service integration (Dropbox, Google Drive, etc.)
  • AES-256 military-grade encryption
  • Split-screen viewing for iPad
  • File management and organization
Features
Currently charting
Read full description

First released in 2009, GoodReader® is truly a veteran of the App Store. In the modern app business, it's not easy to stay relevant that long. We're proud to say that after 17 years and counting, we've been delivering wonderful updates with extraordinary new features. And we're going to keep doing that! GoodReader is a perfect combination of document-reading and file-managing capabilities. It's your one-stop shop for all your document needs on your iOS device. Use the app once, and you'll be hooked. Soon you'll be wondering how you ever managed to work without it. -= File Reading =- PDF, TXT, MS Office, iWork, HTML, pictures, music & audio-books, videos. This is what you can view in GoodReader, plus you can also annotate PDF files and edit TXT files. -= PDF Reading and Annotating =- PDF files is where GoodReader truly shines. Reading experience is so superior, it's hard to describe. To rephrase one of our customers' review, "try it, and you'll see." While you're at it, give our PDF Reflow feature a try. You'll be surprised how much better PDF reading goes when you don't have to scroll left/right all the time, for every single line of text. Annotating PDFs is another star feature of our app. Adding notes and drawings, highlighting text, and then sharing your annotated files or annotation summaries will be your main productivity and collaboration asset. -= File Management =- While reading files is a big part of GoodReader, it's not all it can do. It can also serve as a central hub for all your files, even those that can't be opened by GoodReader itself. It's like bringing your personal computer experience to your mobile device — easily managing huge collections of files and folders will make you forget you don't have your laptop around. -= Connecting =- Dropbox, OneDrive, Google Drive, Box.com, WebDAV, SMB, FTP, SFTP — these are all accessible from inside GoodReader. Download, upload, and sync individual files or huge folder collections. -= Security =- With GoodReader, your data security steps up to the level previously only dreamt of. With Pro Pack®, our new set of professional-level super-features, you'll get AES-256, a military-grade encryption, for all your data, at a price of a cup of coffee! And it's completely independent from the built-in Apple's Data Protection, so even if a hacker steals and unlocks your device, your data will still be protected by another strong layer of security, our own. -= Multi-Windows =- Seamlessly view and manage multiple files simultaneously on iPad. -= Notes =- Capture ideas and comments while reading or studying a technical document without even leaving the app. Sort and group your notes into categories. (Note: Some features require a Pro Pack® subscription.)

About

KarmaBuilder

This app assists founders and solo marketers in crafting effective Reddit posts and comments. It helps discover relevant subreddits, generate draft content, and provides coaching for replies. Users can track their progress and manage posting schedules, ensuring authentic community engagement.

Highlights
  • Subreddit discovery with risk guidance
  • AI-generated post drafts
  • Reply coaching for discussions
  • Draft and content scheduling
  • Karma goal and streak tracking
  • Manual posting control
Features
Read full description

KarmaBuilder helps founders and solo marketers write Reddit-native posts and comments faster—with less guesswork and more consistency. Turn a rough idea into a publish-ready draft in minutes. KarmaBuilder is built for real community participation, not spam or automation. WHAT YOU CAN DO • Discover — Find subreddits that fit your topic, with difficulty, activity, and moderation-risk guidance • Compose — Generate post drafts from your goal: stories, questions, debates, advice requests, and more • Conversations — Paste a Reddit thread URL and get reply coaching that fits the discussion • Schedule — Track drafts, posted content, and per-subreddit cooldown timers • Home — Log karma goals, streaks, and your content pipeline IMPORTANT: KarmaBuilder does not post to Reddit for you. You stay in control—copy drafts and publish manually in the Reddit app or on the web. FREE TO TRY Get 5 AI generations to explore the workflow. KARMABUILDER PRO Pro unlocks unlimited AI drafting, thread-aware reply coaching, and advanced cooldown reminders. Choose Monthly, Yearly, or Lifetime Pro access. Yearly includes a 3-day free trial for eligible new subscribers. Payment is charged to your Apple ID account. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in Settings → Apple ID → Subscriptions. Lifetime Pro is a one-time purchase and does not renew. Terms of Use: https://karmabuilder-api-proxy.eugenen.workers.dev/terms Privacy Policy: https://karmabuilder-api-proxy.eugenen.workers.dev/privacy

Screenshots

GoodReader PDF Editor & Viewer3 screens
KarmaBuilder4 screens

Verdict

The call

The clearest difference is price: KarmaBuilder at Free against GoodReader PDF Editor & Viewer's $6.99. KarmaBuilder also leads on review sentiment (100% vs 69%) and rating (5.0 vs 4.7). GoodReader PDF Editor & Viewer's advantage is ratings volume (14K vs 2) and update cadence (weekly vs every 5 weeks). On ads, in-app purchases, monetization model and device support 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

KarmaBuilder is free to download; GoodReader PDF Editor & Viewer costs $6.99 up front. GoodReader PDF Editor & Viewer sells 4 in-app purchases, starting at $3.99 per month and KarmaBuilder sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

KarmaBuilder holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: GoodReader PDF Editor & Viewer has 14K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 69% of GoodReader PDF Editor & Viewer's written reviews are positive against 100% of KarmaBuilder's.

UpkeepUpdate frequency

GoodReader PDF Editor & Viewer ships an update weekly, KarmaBuilder every 5 weeks. The most recent releases landed on October 15, 2026 and October 3, 2026 respectively.

Scorecard6 real differences · 5 level
GoodReader PDF Editor & Viewer versus KarmaBuilder: the parameters behind the verdict, then further details
ParameterGoodReader PDF Editor & ViewerKarmaBuilder
Price$6.99Free — better
Rating4.7 (14K ratings)5.0 (2 ratings) — better
Positive reviews68.7% of reviews100.0% of reviews — better
Number of ratings14K — better2
Update frequencyWeekly — betterEvery 5 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
Best chart rank#32 — better—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.617.0 — better
Further details — not scored
Size53 MB17 MB
Age rating4+4+
DeveloperGood.iWare, Inc.ThinkAI LLC

Customer experience

GoodReader PDF Editor & Viewer

All ratings13,805 ratings
Positive92.3%
Neutral2.3%
Negative5.5%
Written reviews1,840 reviews
Positive68.7%
Neutral7.9%
Negative23.4%

KarmaBuilder

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

GoodReader PDF Editor & Viewer

Reported bugs

3 issues
  • Syncing issues with cloud storage providers
  • Compatibility problems with newer iOS versions
  • Inconsistent behavior when switching between apps

Requested features

5 requests
  • Continuous scrolling for better reading experience
  • Improved search functionality with advanced filters
  • Ability to set custom color schemes and themes
  • Enhanced support for ebook formats like EPUB
  • Streamlined annotation tools and workflow

KarmaBuilder

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

GoodReader PDF Editor & Viewer

Subscriptions2
  • Pro Pack (monthly)7 Days trial$3.991 Month
  • Pro Pack (annual)7 Days trial$24.991 Year
One-time2
  • Auto Sync$59.99
  • Pro Pack$89.99
3 purchases

KarmaBuilder

Subscriptions2
  • Monthly Pro Access$4.991 Month
  • Yearly Pro Access$29.991 Year
One-time1
  • Lifetime Pro Access$79.99

Questions

Is GoodReader PDF Editor & Viewer free?
GoodReader PDF Editor & Viewer costs $6.99, and also offers in-app purchases.
Is KarmaBuilder free?
KarmaBuilder is free to download, with in-app purchases available.
Which has better reviews, GoodReader PDF Editor & Viewer or KarmaBuilder?
KarmaBuilder is rated higher. GoodReader PDF Editor & Viewer averages 4.7 out of 5 from 14K ratings, while KarmaBuilder averages 5.0 from 2 ratings.
Do GoodReader PDF Editor & Viewer or KarmaBuilder have ads?
Neither GoodReader PDF Editor & Viewer nor KarmaBuilder shows ads.
Which is updated more often, GoodReader PDF Editor & Viewer or KarmaBuilder?
GoodReader PDF Editor & Viewer ships an update weekly, and KarmaBuilder every 5 weeks. Most recently, GoodReader PDF Editor & Viewer was updated on October 15, 2026 and KarmaBuilder on October 3, 2026.

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