Comparison

DevUtils vs Exploratory

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

Head to head
About

DevUtils

Features
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DevUtils is an offline-first developer toolkit with 37+ essential tools — all running privately on your device. No data leaves your phone. PAYLOADS & DATA • JSON Formatter & Validator — Pretty-print, minify, or validate JSON with syntax highlighting • YAML ↔ JSON Converter — Seamless conversion between YAML and JSON • XML Formatter — Indent and beautify XML documents • CSV ↔ JSON Converter — Transform between CSV and JSON formats • SQL Formatter — Format and beautify SQL queries • HTML Entity Encoder/Decoder — Encode and decode HTML entities • Backslash Escape/Unescape — Handle string escaping • Text Diff Checker — Compare two texts and highlight differences ENCODING & DECODING • Base64 Text Encoder/Decoder — Encode or decode Base64 strings • Base64 Image Encoder/Decoder — Convert images to/from Base64 • URL Encoder/Decoder — Percent-encode or decode URLs • HTML Preview — Render HTML snippets live on device • Markdown Preview — Render Markdown with live preview • QR Code Generator — Create QR codes instantly • QR Code Reader — Scan and decode QR codes SECURITY & IDENTITY • JWT Debugger — Decode, inspect, and verify JSON Web Tokens • Hash Generator — MD5, SHA-1, SHA-256, SHA-512 and more • HMAC Generator — Keyed hash authentication codes • UUID/ULID Generator — Generate unique identifiers on demand • Password Generator — Create strong, customizable passwords • RSA Key Generator — Generate RSA key pairs • Certificate Decoder — Inspect X.509 certificates AUTOMATION & REGEX • RegExp Tester — Build and test regular expressions with live matching • Cron Expression Parser — Decode and schedule cron jobs • Chmod Calculator — Unix file permission calculator • Lorem Ipsum Generator — Generate placeholder text TIME & NUMBERS • Unix Time Converter — Convert between Unix timestamps and dates • Date Converter — Parse and format dates in multiple formats • Number Base Converter — Convert between binary, octal, decimal, hex • Color Converter — Convert between HEX, RGB, HSL, and more • Byte Converter — Convert between data size units • Pixel Converter — Convert between px, pt, em, rem ADDITIONAL TOOLS • Text Inspector & Case Converter — Word count, case transforms • List Converter — Sort, deduplicate, transform lists • JSON to Code — Generate model code from JSON • Phone Number Parser — Parse and validate phone numbers • URL Parser — Break down URLs into components All tools work 100% offline. Your data never leaves your device.

About

Exploratory

Features
Read full description

Testers.AI turns your iPhone into a professional QA engineer. Tap the Safari extension on any web page and AI agents immediately get to work — clicking, scrolling, filling forms, and probing for problems like a seasoned tester would. When they're done, a detailed bug report lands in the app: every issue ranked by severity, with steps to reproduce, screenshots, expected vs. actual behavior, and AI-generated fix suggestions. INTELLIGENT EXPLORATION Choose from eight exploration styles — Happy Path, Smoke, Negative, Edge Case, Scenario, Monkey, Adversarial, and Destructive — and focus the agents on what matters most: accessibility, security, performance, UX, forms, navigation, or content. The agents adapt their behavior to the style and focus you select. MULTI-AGENT TESTING Run up to several AI agents in serial across the same page. Each agent brings a different testing persona and approach, giving you broader coverage than any single pass could achieve. BATCH MODE Test an entire list of URLs in one go. Paste them in, or just describe what you want ("top e-commerce checkout pages") and let the AI generate the list for you — even by voice. Results land in a competitive comparison view so you can see which sites have the most issues at a glance. DETAILED REPORTS Every exploration session is saved to your history with: • Issues sorted by severity (Critical → Suggestion) • Agent step-by-step replay • AI summary of what was found • Hero stats: issues found, steps taken, agents used EXPORT ANYWHERE Share results as plain text, JSON, or JIRA wiki markup — ready to paste straight into your bug tracker. Copy individual issues, share full reports, or export a screenshot of the results to send to your team. ISSUES DASHBOARD The Issues tab organizes every bug found across all your sessions by domain and URL, so you can track quality trends across the sites you care about over time. BATCH COMPARE Run the same test across multiple competitors or pages, then review a side-by-side bar chart ranking them by issue count and severity. Great for competitive audits and regression checks before launch. PRIVACY FIRST All exploration history is stored locally on your device. No account required to get started. Testers.AI is built for developers, QA engineers, product managers, and anyone who cares about shipping quality software. Unlock full access with your Testers.AI account for unlimited testing and team sync.

Screenshots

DevUtils1 screens
Exploratory4 screens

Verdict

The call

The clearest difference is ads: Exploratory at none against DevUtils's shown. On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference Ā· 4 level
DevUtils versus Exploratory: the parameters behind the verdict, then further details
ParameterDevUtilsExploratory
PriceFreeFree
AdsYesNo — better
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.2 — better26.4
Further details — not scored
Size13 MB10 MB
Age rating4+17+
DeveloperYen NguyenJASON ARBON

In-app purchases

None

DevUtils

No in-app purchases

None

Exploratory

No in-app purchases

Questions

Is DevUtils free?
DevUtils is free to download, with no in-app purchases.
Is Exploratory free?
Exploratory is free to download, with no in-app purchases.
Do DevUtils or Exploratory have ads?
DevUtils shows ads; Exploratory does not.

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