Comparison

JSON Master vs CSV Viewer and Editor

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

Head to head
About

JSON Master

This offline iOS tool formats, views, validates, and converts JSON data. It supports large files and offers privacy-safe, local processing for developers needing to debug API responses or transform data formats.

Highlights
  • Offline JSON formatting and beautifying
  • Tree and text view for JSON visualization
  • Instant JSON syntax validation
  • JSON to CSV, XML, Excel conversion
  • Large file support
  • Import from clipboard and files
Features
Read full description

JSON Master is a professional JSON Formatter / Viewer / Converter for developers (offline iOS tool). Three key points upfront: 100% offline processing, privacy-safe, large file support — your data is never uploaded to any server. Core Features (Developer Favorites): JSON Formatter & Beautifier: One-click format/beautify/minify, with syntax highlighting support. JSON Viewer: Tree View / Text views for clear structure visualization. JSON Validator: Instant syntax error detection (with line numbers) for quick API response debugging. Fast Converter: Bidirectional JSON ↔ CSV / XML / Excel (.xlsx) conversion. Large File Support: Smoothly open and edit large files. Import Anywhere: Import from Clipboard / Files for debugging anytime. Why Choose JSON Master? • Privacy First: All formatting, validation, and conversion happen locally on your device. • Focused & Distraction-Free: Clean interface with no redundant steps, perfect for quick data inspection and fixing. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://legal.rkvpxdr.com/privacy.html

About

CSV Viewer and Editor

Features
Read full description

CSV Viewer and Editor is a offline CSV tool built for anyone who works with data on the go — developers, analysts, students, and business users. OPEN CSV FILES ANYWHERE • Open from Files, paste from clipboard, type manually, or fetch from a URL • Auto-detects delimiters: comma, semicolon, tab, and pipe • Detects headers automatically — no setup needed • Resume your last session instantly VIEW & EXPLORE DATA • Interactive table view with column sorting and row search • Raw view with line numbers and syntax highlighting • Stats at a glance — row count, column count, empty rows, unique values • Per-column statistics: min, max, average, sum for numeric data • Jump to any row instantly EDIT WITH PRECISION • Tap any cell to edit its value • Add or delete rows and columns • Full text editor mode for bulk changes • Auto-fixes malformed CSV — pads short rows, repairs unclosed quotes COMPARE & DIFF • Side-by-side comparison of two CSV files • Color-coded diff results: added, removed, changed, unchanged • Track changes down to the cell level — no other mobile CSV app does this CHARTS & VISUALIZATION • Bar charts, line charts, and pie charts from your data • Auto-detects numeric columns for instant charting • Tooltips, grid lines, and axis labels included EXPORT & CONVERT • Export to PDF, Excel (.xlsx), CSV, TSV • Convert to JSON or XML with one tap • Share or print directly from the app 10 READY-MADE TEMPLATES • Contacts, Sales Data, Inventory, Student Grades, Employee Directory, Server Logs, Weather Data, Budget Tracker, API Endpoints, and a blank grid BUILT FOR DAILY USE • Dark mode, light mode, or match your system • 16 languages supported • History and favorites to find your files fast • Day streak and file counter to track your usage • Works 100% offline — your data never leaves your device SUBSCRIPTION AND PRICING • csvvedit Pro Lifetime — $9.99, one payment • csvvedit Pro Monthly — $1.99 per month, renews automatically • Payment is charged to your Apple Account at confirmation of purchase • A subscription renews unless it is cancelled at least 24 hours before the end of the current period • Manage or cancel anytime in your Apple Account settings Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://cosmovex.web.app/apps/csvvedit/privacy-policy

Screenshots

JSON Master3 screens
CSV Viewer and Editor4 screens

Verdict

The call

The clearest difference is ads: CSV Viewer and Editor at none against JSON Master's shown. JSON Master's advantage is update cadence (every 9 days vs every 6 months). On price, in-app purchases, device support and iOS requirement 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

Both are free to download. JSON Master sells 3 in-app purchases, starting at $2.99 per 7 days and CSV Viewer and Editor sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

JSON Master ships an update every 9 days, CSV Viewer and Editor every 6 months. The most recent releases landed on October 3, 2026 and October 13, 2026 respectively.

Scorecard2 real differences · 8 level
JSON Master versus CSV Viewer and Editor: the parameters behind the verdict, then further details
ParameterJSON MasterCSV Viewer and Editor
PriceFreeFree
Rating4.6 (5 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings5 — better—
Update frequencyEvery 9 days — betterEvery 6 months
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size41 MB41 MB
Age rating4+4+
DeveloperTianjin Illuso Information Technology Co., Ltd.Sahana A S

In-app purchases

3 purchases

JSON Master

Subscriptions2
  • JSON Master Pro (Weekly)3 Days trial$2.997 Days
  • Pro (Yearly)$14.991 Year
One-time1
  • JSON Master Pro Lifetime$17.99
2 purchases

CSV Viewer and Editor

Subscriptions1
  • csvvedit Pro Monthly$1.991 Month
One-time1
  • csvvedit Pro Lifetime$9.99

Questions

Is JSON Master free?
JSON Master is free to download, with in-app purchases available.
Is CSV Viewer and Editor free?
CSV Viewer and Editor is free to download, with in-app purchases available.
Do JSON Master or CSV Viewer and Editor have ads?
JSON Master shows ads; CSV Viewer and Editor does not.
Which is updated more often, JSON Master or CSV Viewer and Editor?
JSON Master ships an update every 9 days, and CSV Viewer and Editor every 6 months. Most recently, JSON Master was updated on October 3, 2026 and CSV Viewer and Editor on October 13, 2026.

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