Comparison

Paperlogix vs Kase₄

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

Head to head
About

Paperlogix

Capture high-quality scans of documents and receipts with automatic cropping and perspective correction. Organize your files using folders and tags, and leverage powerful automation features for sorting and archiving. Pro features include OCR, cloud uploads, and customizable themes.

Highlights
  • Automatic document edge detection
  • Skew and perspective correction
  • Folder and tag organization
  • Text recognition (OCR)
  • Cloud service integration
  • Workflow automation
  • Multi-page scanning
Read full description

Get organized with Paperlogix Document Scanner. Capture beautiful, high quality scans of your receipts and documents. Easily organize your scans with folders, tags, and convenient drag and drop. Upgrade to Paperlogix Pro to enable automation, text recognition (OCR), cloud upload, capture presets, customizable color themes, and more. Powerful automation workflows and rules let you automatically sort, organize, and archive your scans. Capture Scans with Your Camera • Automatic cropping detects document edges • Correction for skew and perspective distortion • Background whitening for clean, paper-white scans • Fine tune camera exposure • Scan using any of your device's back cameras • Scan in color, grayscale, or black & white • Scan multi-page documents • Snap scans automatically with Auto Capture • Easily change scanning configuration with Capture Presets • Edit and create your own Capture Presets (Pro) Organize Scans • Organize with nested folders (Basic or Pro) • Create tags to quickly access your documents or folders (Basic or Pro) • Move or tag items with iOS drag and drop View and Edit Scans • Browse multi-page scans • Adjust colors, brightness, contrast, and rotation • Whiten backgrounds • Precision crop tool with magnifier • Instantly revert back to your original camera images • Peek into scans with 3D or Haptic Touch • Merge scans Navigate • Instantly access recent documents • Instantly access tagged items and favorites • Find documents and folders with pull down search bar Text Recognition (Pro) • Convert documents to selectable text • Built-in text recognition executes directly on your device Cloud Services (Pro) • Share to Dropbox, Google Drive, Box, Evernote, or OneDrive • Upload to cloud services from workflows and rules Automation (Pro) • Create workflows to automate common actions such as renaming, moving, or uploading documents • Create rules to perform actions automatically • Automatic text recognition for processing text rules • View the status of all your automation actions • Export and Import your workflows and rules Automation Rules (Pro) • Perform actions when documents contain specific text • Perform actions when documents are created • Perform actions when documents are added to a folder • Perform actions when documents are tagged Automation Actions (Pro) • Rename document • Move to folder • Tag document • Recognize Text • Upload to Dropbox, Google Drive, Box, Evernote, or OneDrive cloud services • Save to Photos • Compose Email • Compose Message Share Your Scans • Export scans as JPEG images • Export scans as PDF documents (Basic or Pro) • Encrypt exported PDF documents (Basic or Pro) Color Themes • Support for dark mode • Customizable color themes (Basic or Pro)

About

Kase₄

This app allows you to create and manage your own personal databases on your device. It offers flexibility in designing structures to track anything important, with features like inter-linked data, full-text search, and various field types. Your data remains private and accessible offline.

Highlights
  • Design custom databases
  • Inter-linked data
  • Full-text search with NLP
  • Multiple field types
  • Markdown support
  • Passcode and biometric lock
  • Data visualization (Formatters)
  • OCR for text recognition
Features
Read full description

Kase exists because it should. There should be a database app that can go anywhere with you. It should be: • Simple — Using it should be easy and intuitive, • Flexible — Once familiar with the basics, you can design any database to track anything important to you, and • Relational — Inter-linked data is an order of magnitude more useful. Plus, you don't want to repeat yourself. Additionally, it should be: • Personal — You should not need to worry about who can peek into your data, and • Always Available — High-speed wireless network should *not* be a prerequisite for accessing your own data. Structured data at your fingertips. Something like that didn't exist, so I started creating Kase in 2014. Basic Concepts: • Your Kase contains Boxes. • Each Box stores Decks that can relate to each other. • A Deck collects similarly structured Cards. • And a Card is where you put data Entries. Features: • Pick, assign, and organize with Categories, Tags, and Marks. • Search by name, notes, full text, or keywords: Full-text indexing with Natural Language Processing. • Highlight any Box, Deck, Card, Entry, or Keyword. • Deck definitions support inheritance! • Field types include Text, Number (with Unit), Money (with Currency), Date/Time (with Time Zone), Choice, Boolean, Link, Picture, and Document. - complete with multi-level auto-conversion • Write in Markdown and see rich formatted text. • Box can be locked with a passcode, and unlocked with Face ID or Touch ID. • Formatters (Fx) to visualize data in different ways without altering the data one bit. e.g. Unit Converter, NameMapper, WordScrambler, ICU Transformers... • Side-by-Side: Compare Cards easily by displaying in columns. • On-device Text Recognitions (OCR) for multiple languages. • Import/Export in CSV, JSON, or KASE. • Complete Backup & Restore. • iPad Multitasking support: Split View, Slide Over, etc. • Very customizable UI with custom locales What Kase Can't Do: - Cloud sync is not done yet (stay tuned...) What Kase Can Do: > From Data to Wisdom > Data ▹ Information ▹ Knowledge ▹ Wisdom 1. Store Data — the objective truths. 2. Organize Information — to reflect circumstances and current condition. 3. Systematically retrieve Knowledge — utilized for decision-making. 4. And that hopefully enables you to grasp Wisdom, comprehend insights, and ultimately create value. There are databases that belong to the Big Guys. The rest of them should stay personal. By now, you should realize how valuable your data is. So why give it away? Kase keeps your data yours. See www.wisd.com/kase for more details. Terms of Use (EULA): https://www.wisd.com/kase/eula

Screenshots

Paperlogix4 screens
Kase₄4 screens

Verdict

The call

The clearest difference is review sentiment: Paperlogix at 58% against Kase₄'s 0%. Paperlogix also leads on price (Free vs $9.99). Kase₄'s advantage is iOS requirement (15.0 vs 18.0). On update cadence, ads, in-app purchases 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

Paperlogix is free to download; Kase₄ costs $9.99 up front. Paperlogix sells 3 one-off in-app purchases and Kase₄ sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Paperlogix ships an update every 3 months, Kase₄ every 2 months. The most recent releases landed on October 7, 2026 and October 3, 2026 respectively.

Scorecard4 real differences · 6 level
Paperlogix versus Kase₄: the parameters behind the verdict, then further details
ParameterPaperlogixKase₄
PriceFree — better$9.99
Rating4.5 (68 ratings) — better—
Positive reviews58.3% of reviews — better0.0% of reviews
Number of ratings68 — better—
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium — betterPaid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.0 — better
Further details — not scored
Size28 MB17 MB
Age rating4+4+
DeveloperOnloft Software LLCKenneth Wong

Customer experience

Paperlogix

All ratings68 ratings
Positive88.2%
Neutral5.9%
Negative5.9%
Written reviews12 reviews
Positive58.3%
Neutral33.3%
Negative8.3%

Kase₄

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

3 purchases

Paperlogix

One-time3
  • Upgrade from Basic to Pro$1.99
  • Paperlogix Basic Upgrade$2.99
  • Paperlogix Pro Upgrade$4.99
4 purchases

Kase₄

One-time4
  • Tip: Dollar$1.00
  • Tip: Coffee$2.00
  • Tip: Coffee, CA$4.00
Show 1 more
  • Tip: Caffè Mocha$5.00

Questions

Is Paperlogix free?
Paperlogix is free to download, with in-app purchases available.
Is Kase₄ free?
Kase₄ costs $9.99, and also offers in-app purchases.
Do Paperlogix or Kase₄ have ads?
Neither Paperlogix nor Kase₄ shows ads.
Which is updated more often, Paperlogix or Kase₄?
Paperlogix ships an update every 3 months, and Kase₄ every 2 months. Most recently, Paperlogix was updated on October 7, 2026 and Kase₄ on October 3, 2026.

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