Best Margins Development Apps

236+ iOS apps curated and reviewed

4.4 avg rating
19 free apps
Updated August 2026

Whether you're new to margins development or looking for an upgrade, our curated collection of 236+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Compare top Margins Development Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Margins DevelopmentMargins DevelopmentFreeNoNoMay 2026
2Margin/Markup CalculatorMargin/Markup CalculatorFreeNoNoMay 2026
3PDF Margin AdjusterPDF Margin AdjusterFree4.6★ (45)NoNoJul 2026
4Combine - Code Editor & GitCombine - Code Editor & GitFree4.7★ (7)NoYesAug 2026
5Margins: Save Book HighlightsMargins: Save Book HighlightsFree5.0★ (1)NoYesJul 2026
6Obsidian - Connected NotesObsidian - Connected NotesFree4.5★ (2.6K)NoNoAug 2026
7Epilogue - Book Writing AppEpilogue - Book Writing AppFreeNoNoJul 2026
8Billion Betting ClubBillion Betting ClubFree1.0★ (1)NoYesMay 2026

Top Picks for Margins Development

PDF Margin Adjuster#3

PDF Margin Adjuster by Yohei Iseki

Adjust margin of PDF files
Worth Considering
📊 Productivity
4.6(45 ratings)
Free
PDF Margin Adjuster screenshot 1
PDF Margin Adjuster screenshot 2
PDF Margin Adjuster screenshot 3
PDF Margin Adjuster screenshot 4
PDF Margin Adjuster screenshot 5
PDF Margin Adjuster screenshot 6

Easily modify the margins of your PDF, PPT, and PPTX files. This app offers interactive tools to adjust margins precisely, from simple adjustments to advanced, side-specific controls. Save your modified documents directly to your device or cloud storage.

More Margins Development apps to explore

4
Combine - Code Editor & Git
Combine - Code Editor & Git
Combine - Code Editor & Git
Code Editor and Git Client
Free

Transform your mobile device into a professional coding studio. This app offers advanced code editing, live previews, and comprehensive Git integration for developers on the go. Work offline, debug efficiently, and manage your projects seamlessly.

Expert syntax highlighting and code completionOffline coding and live web previewAdvanced Git repository management
🛠️ Developer Tools
(7)
freemium
5
Margins: Save Book Highlights
Margins: Save Book Highlights
Margins: Save Book Highlights
Remember everything you read
Free

Organize your book collection and save important passages. Capture text manually or with your device's camera. Sync your library and notes across all your Apple devices and import from Kindle.

Book management and organizationManual highlight captureCamera-based text capture
📚 Books
(1)
free with in-app purchases
6
Obsidian - Connected Notes
Obsidian - Connected Notes
Obsidian - Connected Notes
Your second brain on the go
Free

Organize your thoughts and ideas with a powerful knowledge base that utilizes local Markdown files. This app acts as your personal second brain, accessible on your mobile device for seamless note-taking and idea connection.

Local Markdown file storageCustomizable toolbarGraph view for connections
📊 Productivity
(2.6K)
free
7
Epilogue - Book Writing App
Epilogue - Book Writing App
Epilogue - Book Writing App
The best book writing software
Free
📊 Productivity
(0)
8
Billion Betting Club
Billion Betting Club
Billion Betting Club
by Appy Monkey - App Developers
Free

This service provides expert football betting tips with a focus on maximizing return on investment. Receive instant notifications for pre-game and in-play tips, directly linked to bookmakers for fast placement. Designed for punters and serious profit seekers.

Expert football tipsDirect betting linksInstant push notifications
💼 Business
(1)
subscription
9
Adaptivity (B)
Adaptivity (B)
Adaptivity (B)
For developers & designers
Free

Visualize how app layouts appear on various devices and adapt to different settings like orientation, multitasking, and text size changes. This free version offers essential tools for developers and designers to preview their work.

Visualize layout sizesDisplay sizes in points or pixelsToggle status bar visibility
🛠️ Developer Tools
(9)
free
10
Cost Margin Calculator
Cost Margin Calculator
Cost Margin Calculator
by Renowne, LLC
Free

This business tool accurately calculates cost, margin/markup, price, and commission. It also includes a break-even calculator to determine the sales needed to cover costs during promotions. Achieve your business goals with this simple yet powerful app.

Cost, margin/markup, price, commission calculatorsBreak-even analysis calculatorToggle between margin and markup
💰 Finance
(89)
free
11
Adaptivity (A)
Adaptivity (A)
Adaptivity (A)
SF Symbols and other dev tools
$7.99

Visualize how app layouts adapt to different screen sizes, orientations, and dynamic text settings on iOS and iPadOS devices. Explore SF Symbols, system colors, fonts, and materials with detailed information and previews.

Visualize layout sizes and marginsExplore SF Symbols across iOS versionsPreview Dynamic Type styles
🛠️ Developer Tools
(92)
free with in-app purchases
12
pensiv: Writing app for novels
pensiv: Writing app for novels
pensiv: Writing app for novels
Write novels and screenplays.
Free

This app provides a unified workspace for writers to craft novels and screenplays. It allows for nonlinear writing, flexible organization of scenes and ideas, and integrated character and plot management. AI tools are available to assist with idea generation and refinement.

Unified writing and notes workspaceFlexible writing units (chapter, scene, fragment)Nonlinear workflow and easy restructuring
📊 Productivity
(1)
free with in-app purchases
13
PagePrep: PDF Margins & Notes
PagePrep: PDF Margins & Notes
PagePrep: PDF Margins & Notes
Merge & split, add lined paper
Free
📊 Productivity
(0)
14
Adaptivity (C)
Adaptivity (C)
Adaptivity (C)
For developers & designers
Free

Visualize layout elements like Size Classes, margins, and safe areas on devices. See how these adapt to orientation and Dynamic Type changes. This free version offers core features for developers and designers.

Visualize Size Classes and marginsAdapt to orientation and Dynamic TypeView layout on real devices
🛠️ Developer Tools
(4)
free
15
Novelium
Novelium
Novelium
Write with confidence
Free

A comprehensive writing studio for authors to draft, organize, and refine their manuscripts. It integrates world-building, character tracking, and publishing tools into a single workspace for a seamless creative process.

Draft chapters and organize filesTrack characters, settings, and timelinesReview story structure and manuscript
📚 Books
(8)
free with in-app purchases
16
Image Size Change
Image Size Change
Image Size Change
Specify ratio. Margin or crop.
Free

Adjust image dimensions by specifying a height and width ratio. Choose to add margins or crop the image to fit the desired aspect ratio while maintaining high quality.

Specify height and width ratioAdd margins to imageCrop image to ratio
📷 Photo & Video
(3)
free
17
Writing Shed Pro
Writing Shed Pro
Writing Shed Pro
by Keith Lander
Free

A comprehensive writing studio for poets, novelists, and playwrights. Offers genre-specific tools, a distraction-free editor, and manuscript analysis to refine your work. Seamlessly syncs across devices and supports various export formats.

Genre-specific project typesDistraction-free editorManuscript Analyzer
📊 Productivity
(1)
free with in-app purchases
18
Dawn - Markdown
Dawn - Markdown
Dawn - Markdown
A beautiful Markdown reader
Free

This app transforms raw Markdown text into a beautifully formatted and readable document. It supports various Markdown flavors, code blocks, tables, math, and diagrams, offering a clean reading experience for AI-generated content, notes, and documents.

Beautifully renders MarkdownSupports CommonMark and GitHub Flavored MarkdownSyntax-highlighted code blocks
📊 Productivity
(0)
free
19
Concise: Hemingway Editor
Concise: Hemingway Editor
Concise: Hemingway Editor
Private Readability Checks
Free

Enhance your writing with private, on-device analysis. Get instant feedback on readability, sentence structure, passive voice, and word choice to create clearer, sharper text.

On-device writing analysisReadability grade and reading timeDetection of hard sentences and passive voice
📊 Productivity
(1)
free with in-app purchases
20
Keylines
Keylines
Keylines
Design Tools for Layout Grid
Free

Overlay a customizable grid on screenshots to accurately measure layout dimensions, margins, and padding. This tool streamlines design and development workflows by enabling detailed analysis of app interfaces.

Screenshot grid overlayMeasure layout sizesAnalyze margins and padding
🛠️ Developer Tools
(1)
free

FAQ about Margins Development

Are there free margins development apps for iPhone?
Yes — 19 of the top margins development apps we rank are free to download, including Margins Development and Margin/Markup Calculator.
Margins Development has no ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 236+ margins development apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.