Comparison

iWriter Pro vs Dilution +

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

Head to head
About

iWriter Pro

A minimalist text editor with robust Markdown support and distraction-free writing. It offers iCloud sync, live syntax highlighting, and various export options for documents.

Highlights
  • Clean and minimal interface
  • iCloud sync
  • Live Markdown syntax highlighting
  • HTML Preview
  • Typewriter mode
  • Document Browser with tags
  • Export to HTML, PDF, EPUB, DOCX, and more
Read full description

# iWriter Pro is elegant and minimalist text editor with built-in Markdown support. Distraction-free and subscription-free. ## Features: - Clean and minimal interface. - iCloud sync across iPad, iPhone, and Mac¹ devices. - Text editing with live Markdown syntax highlighting. - HTML Preview for Markdown and MultiMarkdown documents. - Typewriter mode² with focusing on line, sentence, or paragraph. - Powerful Document Browser³ with tags support. - Integrated counters for words, symbols, sentences, and paragraphs. - Fast and responsive editing even for large files. ## iWriter Pro supports: - Highlighting and rendering of LaTeX equations. - Flowchart and Mermaid diagrams. - Source code highlight in HTML preview. - Exporting documents as HTML, PDF, RTF, EPUB, LaTeX, and DOCX. - Keyboard shortcuts⁴ for text formatting and quick navigation. - Search and Replace in your documents. - Light and dark layouts (auto-switching included). - Automatic number/bullet/task list formatting. ¹ - iWriter Pro for Mac is available as a separate purchase on the Mac App Store. ² - Typewriter and Focus modes are available only on iPad. ³ - Editing files in Dropbox, Google Drive, and other 3d-party storage providers is not guaranteed. ⁴ - External keyboard is required.

About

Dilution +

Features
Read full description

Dilution+ - The Ultimate Dilution Calculator! Simplify your lab work and solution preparation with Dilution+, the app designed for scientists, students, and professionals who need quick and accurate dilution calculations. Whether you’re in a lab, classroom, or working on personal projects, this app ensures precision and saves you valuable time. Key Features: • Intuitive Interface: Quickly input the initial concentration, desired final concentration, and final volume with a clean and user-friendly interface. • Accurate Calculations: Get instant results for how much of your initial solution to use and how much solvent to add. • Flexible Units: Work seamlessly with mass-to-volume ratios (e.g., mg/dl) or molar units (e.g., mol/l). Switch between units effortlessly to suit your needs. • Visual Feedback: See a visual breakdown of the dilution process with clear information on solution and solvent quantities. • Optimized Workflow: Designed for rapid data entry and instant results, perfect for busy professionals and students. Why Choose Dilution+? Stop wasting time with manual calculations and complex formulas. Let Dilution+ handle the math so you can focus on what matters. Whether you’re preparing a chemical solution, biological medium, or any diluted solution, this app is your go-to assistant. Start simplifying your dilutions today with Dilution+. Download now and make every drop count!

Screenshots

iWriter Pro4 screens
Dilution +4 screens

Verdict

The call

The clearest difference is update cadence: iWriter Pro at every 3 months against Dilution +'s every 24 months. Dilution +'s advantage is price ($0.99 vs $4.99) and iOS requirement (16.6 vs 18.6). On 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

iWriter Pro costs $4.99 and Dilution + $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

iWriter Pro ships an update every 3 months, Dilution + every 24 months. The most recent releases landed on September 24, 2026 and September 23, 2026 respectively.

Scorecard3 real differences · 7 level
iWriter Pro versus Dilution +: the parameters behind the verdict, then further details
ParameteriWriter ProDilution +
Price$4.99$0.99 — better
Rating4.7 (130 ratings) — better—
Positive reviews68.1% of reviews—
Number of ratings130 — better—
Update frequencyEvery 3 months — betterEvery 24 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad — betteriPhone
Requires iOS18.616.6 — better
Further details — not scored
Size19 MB6 MB
Age rating4+4+
DeveloperSerpensoft GroupArpacore B.V.

Bugs and requests

iWriter Pro

Reported bugs

31 issues
  • App crashes and freezes frequently
  • Data loss or corruption during editing/syncing
  • iCloud and Dropbox sync issues
  • Exported DOCX files are not fully compatible
  • Autocorrect option is confusingly named
Show 26 more
  • Cannot rename documents outside of iWriter folder
  • List indentation can be problematic
  • Markdown menus on keyboard have delayed response
  • Automatic dark mode not working after update
  • Mermaid plugin not working with iOS 18
  • Preview barely works
  • App not being updated to fix bugs
  • Developer does not respond
  • Multiline LaTeX not supported
  • App crashes on iPad Pro 2020 after update
  • Conversion to DOCX has restrictions
  • No preview section in settings for plugins
  • Photos cannot be inserted (folder access permission issue)
  • Cannot read images from hidden folders
  • Line breaks in exported documents turn into spaces
  • Formulae not working
  • Occasional rendering bug where text doesn't fill screen
  • App crashes immediately upon opening
  • Google Drive sync issues and inability to open/save files
  • iCloud synchronization consumes too much battery
  • App deletes work for no reason
  • Dropbox connection is poor and leads to conflicts/data loss
  • Font compatibility issues in document names
  • App is very basic and doesn't work well with other Markdown editors
  • Impolite developers
  • App is unstable

Requested features

22 requests
  • Add table support (Markdown)
  • Allow reordering of shortcuts
  • Cycle visibility on headings using Tab
  • Add Mark Set and cut region
  • Wordpress export
Show 17 more
  • Syntax highlighting
  • File tree or explorer in sidebar
  • Regex search
  • Auto dark mode
  • Select and open a folder
  • Obsidian support (hyperlink function)
  • Chinese support
  • Add math input
  • Passcode lock feature
  • Change font color
  • Hybrid/mixed editor/preview mode
  • Automatic backup to Dropbox/other cloud storage
  • Add file opening options in preview mode
  • Enter title edit mode immediately after creating a new file
  • Change shortcut keys from moving cursor to indent
  • Customizable paste symbols
  • Full-text search

Dilution +

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

iWriter Pro

No in-app purchases

None

Dilution +

No in-app purchases

Questions

Is iWriter Pro free?
iWriter Pro costs $4.99, with no in-app purchases.
Is Dilution + free?
Dilution + costs $0.99, with no in-app purchases.
Do iWriter Pro or Dilution + have ads?
Neither iWriter Pro nor Dilution + shows ads.
Which is updated more often, iWriter Pro or Dilution +?
iWriter Pro ships an update every 3 months, and Dilution + every 24 months. Most recently, iWriter Pro was updated on September 24, 2026 and Dilution + on September 23, 2026.

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