Comparison

DevKit vs JSON Tools

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

Head to head
About

DevKit

This app provides a suite of offline developer tools for formatting, debugging, encoding, and converting data. It keeps all your work on your device, ensuring privacy and accessibility without an internet connection. Features include JSON formatting, JWT decoding, hash generation, and QR code creation.

Highlights
  • 30+ offline developer utilities
  • JSON, HTML, CSS, JS, XML, SQL formatting
  • JWT decoding and certificate inspection
  • Base64, URL, and HTML encoding/decoding
  • Hash generation (MD5, SHA-256)
  • Timestamp and number base conversion
  • QR code generation
Features
Read full description

Convert files and debug code in one app. DevKit turns PDFs into editable Word documents, photos into PDFs and HEIC photos into JPGs, and gives developers a full kit of formatters, decoders and generators. Everything runs on your iPhone or iPad: your files are never uploaded. FILE TOOLS > PDF to Word: Turn a PDF into an editable Word document (.docx), keeping headings, lists, links, images, headers and footers. Preview the result before you save it. Scanned pages are read with on-device text recognition. Tables are kept on iOS 26 and later. > JPG to PDF: Combine photos and scans into one tidy PDF > HEIC to JPG: Turn iPhone photos into JPGs for forms and websites > MOV to MP4: Turn .mov videos into .mp4 files > HTML Viewer: Open .html files safely and see their source > JSON, XML and CSV Viewers: Open data files as a tree or a table > Unzip and Zip Files: Open .zip archives, or bundle files into one > Open files straight from the Files app, Mail or Safari, and find everything you convert in the Files tab FORMATTERS > JSON Formatter: Format, minify and validate JSON, with a collapsible tree view > HTML, CSS, JavaScript, XML and SQL Formatters ENCODE & DECODE > JWT Debugger: Decode tokens, inspect headers and claims, verify signatures > Certificate Decoder: Read X.509 certificates > Base64, URL Encoder and Parser, HTML Encoder, Backslash Escape > Hash Generator: MD5, SHA-1, SHA-256 and SHA-512 CONVERTERS > Timestamp, Case Converter, Color Converter (HEX, RGB, HSL) > YAML to JSON, CSV to JSON, Number Base, Hex to Text > Cron Parser: Read cron expressions in plain English, with the next run times GENERATE & COMPARE > QR Code: Scan codes live with the camera or from a photo, and create your own > UUID and ULID Generator, Random String, Lorem Ipsum > Diff Checker, RegEx Tester, Markdown Previewer, Line Sort, String Inspector MADE FOR YOUR PHONE > History reopens your recent runs, stored only on your device > Paste, copy and share in one tap > Light and dark designs, large text and VoiceOver support > No account and no sign-up PRIVACY The tools process your text and files on your device. DevKit uses analytics to learn which tools are used (never what you put in them); you can turn it off in Profile > Privacy & Data. SUBSCRIPTION DevKit Pro unlocks every tool, as a monthly or yearly auto-renewing subscription. The price for your country is shown in the app before you buy. Eligible new subscribers get a free trial. Payment is charged to your Apple ID account when you confirm the purchase, or when the trial ends. The subscription renews automatically unless you cancel at least 24 hours before the end of the current period. Manage or cancel it in your App Store account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://devkitpro.app/privacy

About

JSON Tools

This app provides developers with tools to view, edit, and compare JSON data. It offers hierarchical tree views, raw text editing with syntax highlighting, advanced search capabilities including JSONPath, and file operations for local and remote JSON files.

Highlights
  • Hierarchical tree view with expandable nodes
  • Raw text editor with syntax highlighting
  • Advanced search with JSONPath support
  • Visual JSON file comparison
  • Open JSON from device or URL
  • Save and copy JSON content
Features
Read full description

JSON Tools is a fast, modern JSON workbench built for developers who live inside APIs. WHAT YOU CAN DO • Explore large JSON files in tree or raw view with collapsible nodes • Edit with line-numbered syntax highlighting, Undo/Redo, and smart indent • Catch errors as you type with instant JSON validation and clear messages • Compare two JSON documents line by line with the diff engine • Generate strongly-typed Dart model classes in one tap • Spin up realistic mock data for unit tests in seconds • Visualize structure as a connected graph with Graph View BUILT FOR Flutter / Dart developers, backend engineers, QA engineers, and anyone who wrestles with JSON every day. EXPERIENCE Personalized Light and Dark themes, smooth animations, and an ad-free Premium option for focused work. Take control of your JSON—download JSON Tools now.

Screenshots

DevKit4 screens
JSON Tools4 screens

Verdict

The call

The clearest difference is review sentiment: DevKit at 100% against JSON Tools's 33%. DevKit also leads on rating (5.0 vs 3.0) and ads (none vs shown). On price, ratings volume, update cadence and in-app purchases 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. DevKit sells 2 in-app purchases, starting at $9.99 per month and JSON Tools sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

DevKit holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews point the same way: 100% of DevKit's written reviews are positive against 33% of JSON Tools's.

UpkeepUpdate frequency

DevKit ships an update every 8 days, JSON Tools fortnightly. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 7 level
DevKit versus JSON Tools: the parameters behind the verdict, then further details
ParameterDevKitJSON Tools
PriceFreeFree
Rating5.0 (3 ratings) — better3.0 (2 ratings)
Positive reviews100.0% of reviews — better33.3% of reviews
Number of ratings3 — better2
Update frequencyEvery 8 days — betterFortnightly
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size57 MB30 MB
Age rating4+4+
DeveloperAlexander HerdtOKAN KAYCI

Customer experience

DevKit

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

JSON Tools

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

In-app purchases

2 purchases

DevKit

Subscriptions2
  • Pro Monthly3 Days trial$9.991 Month
  • Pro Yearly3 Days trial$39.991 Year
1 purchases

JSON Tools

One-time1
  • JSON Tools Premium$4.99

Questions

Is DevKit free?
DevKit is free to download, with in-app purchases available.
Is JSON Tools free?
JSON Tools is free to download, with in-app purchases available.
Which has better reviews, DevKit or JSON Tools?
DevKit is rated higher. DevKit averages 5.0 out of 5 from 3 ratings, while JSON Tools averages 3.0 from 2 ratings.
Do DevKit or JSON Tools have ads?
JSON Tools shows ads; DevKit does not.
Which is updated more often, DevKit or JSON Tools?
DevKit ships an update every 8 days, and JSON Tools fortnightly. Most recently, DevKit was updated on October 30, 2026 and JSON Tools on October 28, 2026.

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