iWriter Pro vs Dilution +
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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# 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.
Dilution +
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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
Verdict
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
iWriter Pro costs $4.99 and Dilution + $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
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.
| Parameter | iWriter Pro | Dilution + |
|---|---|---|
| Price | $4.99 | $0.99 — better |
| Rating | 4.7 (130 ratings) — better | — |
| Positive reviews | 68.1% of reviews | — |
| Number of ratings | 130 — better | — |
| Update frequency | Every 3 months — better | Every 24 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.6 | 16.6 — better |
| Further details — not scored | ||
| Size | 19 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Serpensoft Group | Arpacore 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
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- 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
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- 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
iWriter Pro
No in-app purchases
Dilution +
No in-app purchases









