Comparison

Devil App Builder vs DevTools+

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

Head to head
About

Devil App Builder

Create apps quickly and easily by linking Sketch for screen design and the Devil Web Console for coding. Learn to code and build your own applications effortlessly.

Highlights
  • Easy app development
  • Sketch integration for screen design
  • Devil Web Console for coding
  • Learn to code
  • Build apps quickly
Features
Read full description

Devil App BuilderλŠ” μ•± κ°œλ°œμ„ 쉽고 λΉ λ₯΄κ²Œ ν•  수 μžˆλŠ” λ„κ΅¬μž…λ‹ˆλ‹€ Sketch와 μ—°λ™ν•˜μ—¬ 화면을 λ§Œλ“€κ³ , Devil Web Console μ—μ„œ 코딩을 ν•˜μ„Έμš”. 코딩을 배우고, 앱을 μ†μ‰½κ²Œ λ§Œλ“€μ–΄λ³΄μ„Έμš” A functional link to the Terms of Use (EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

DevTools+

A comprehensive suite of developer tools for mobile devices. Quickly format, convert, decode, and test code with a vast collection of utilities. Designed for efficient local processing with no account required.

Highlights
  • JSON formatter, validator, and converter
  • API tester with REST, GraphQL, and cURL support
  • Regex tester and highlighter
  • JWT decoder and analysis
  • Base64 encoder/decoder
  • Timestamp and timezone conversion
  • Local-first data processing
Features
Read full description

496 developer tools, ready on iPhone and iPad. DevTools+ puts everyday code utilities in one searchable app. Format JSON, test APIs, inspect regex, decode JWTs, encode Base64, generate UUIDs, convert timestamps, format SQL, and handle hundreds of other development tasks without jumping between random websites. FIND THE RIGHT TOOL FAST - Search all 496 tools across 29 categories - Pin favorites and reopen recent tools - Start with practical examples - Copy and share results - Keep supported history, snippets, and API work organized FORMAT AND CONVERT - JSON formatter, validator, minifier, tree view, sort, and escape - JSON to YAML, CSV, XML, TypeScript, and Java - XML, YAML, TOML, CSV, Markdown, SQL, and text utilities DECODE AND INSPECT - JWT decoder and analysis tools - Base64 encoder and decoder - URL, HTML, Unicode, hexadecimal, and character encoding tools - Hash, HMAC, password, certificate, header, and security helpers - Timestamp, timezone, cron, MIME type, port, and HTTP status references BUILD AND TEST - API tester and REST, GraphQL, cURL, header, and WebSocket helpers - Regex tester, match highlighter, replace, and reference tools - UUID, random data, mock payload, barcode, and QR generators - Git, CSS, React Native, testing, documentation, file, and log utilities LOCAL-FIRST BY DESIGN Most tools process directly on your device. Tools that need a network connection are clearly identified. Nothing you enter is sent anywhere unless the selected tool requires a network request. NO ACCOUNT REQUIRED Open the app and start working. A useful selection of tools is free. DevTools+ Pro unlocks the complete toolkit and removes ads. Built for developers, QA engineers, API testers, students, and technical teams who want a focused utility on their phone. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Devil App Builder3 screens
DevTools+4 screens

Verdict

The call

The clearest difference is iOS requirement: Devil App Builder at 13.0 against DevTools+'s 15.1. On price, review sentiment, update cadence and ads there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Devil App Builder sells 2 in-app purchases, starting at $24.99 per year and DevTools+ 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

Devil App Builder ships an update every 2 weeks, DevTools+ every 11 days. The most recent releases landed on October 8, 2026 and October 28, 2026 respectively.

Scorecard1 real difference Β· 7 level
Devil App Builder versus DevTools+: the parameters behind the verdict, then further details
ParameterDevil App BuilderDevTools+
PriceFreeFree
Positive reviews100.0% of reviews100.0% of reviews
Update frequencyEvery 2 weeksEvery 11 days β€” better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 β€” better15.1
Further details β€” not scored
Size81 MB57 MB
Age rating9+4+
DeveloperMondayless Inc.Tosh Labs Private Limited

Customer experience

Devil App Builder

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

DevTools+

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Devil App Builder

Subscriptions1
  • Membership$24.991 Year
One-time1
  • A month$27.99
2 purchases

DevTools+

Subscriptions2
  • Pro Monthly$1.991 Month
  • Pro Annual$19.991 Year

Questions

Is Devil App Builder free?
Devil App Builder is free to download, with in-app purchases available.
Is DevTools+ free?
DevTools+ is free to download, with in-app purchases available.
Do Devil App Builder or DevTools+ have ads?
Neither Devil App Builder nor DevTools+ shows ads.
Which is updated more often, Devil App Builder or DevTools+?
Devil App Builder ships an update every 2 weeks, and DevTools+ every 11 days. Most recently, Devil App Builder was updated on October 8, 2026 and DevTools+ on October 28, 2026.

Other comparisons