Comparison

appand pre vs Dev Tool box

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

Head to head
About

appand pre

Features
Read full description

Build your branded mobile app — fast, beautiful, and commission-free. Customers convert more on mobile apps than websites. Launch your own native app in hours with no code, no theme or feature add-on fees, and zero sales commission. appand gives you everything you need to grow: unlimited push notifications, automated event marketing, membership perks, sleek design, fast performance, and flexible pricing. Boost repeat purchases, increase loyalty, and own your mobile experience — all with appand.

About

Dev Tool box

Features
Read full description

DevToolbox is an essential collection of developer utilities designed to streamline your coding workflow. Whether you're debugging APIs, encoding data, or formatting JSON, DevToolbox provides the tools you need in a clean, native interface. KEY FEATURES: • JSON Formatter & Validator Format, validate, and beautify JSON with syntax highlighting. Tree view visualization for better structure understanding. Built-in search functionality to find text within large JSON files. • URL Encoder/Decoder Quickly encode or decode URLs for API testing and web development. RFC 3986 compliant encoding for maximum compatibility. • Base64 Encoder/Decoder Convert text to Base64 and vice versa. Supports URL-safe Base64 and auto-padding. Perfect for encoding credentials, tokens, and data URIs. • JWT Decoder Decode and inspect JSON Web Tokens without external services. View header, payload, and signature details instantly. Automatically handles "Bearer " prefix. • Text Case Converter Transform text between various cases: camelCase, PascalCase, snake_case, kebab-case, SCREAMING_SNAKE_CASE, dot.case, UPPERCASE, lowercase, and Title Case. Smart parsing for any input format. • Hash Generator Generate secure hashes using MD5, SHA-1, SHA-256, and SHA-512 algorithms. Essential for checksum verification and security testing. • Unix Timestamp Converter Convert between Unix timestamps and human-readable dates. Supports seconds and milliseconds. Multiple output formats including ISO 8601, UTC, and local time. • Number Base Converter Convert between Decimal, Binary, Octal, and Hexadecimal. Auto-detects input format with 0x, 0b, 0o prefix support. • String Escape/Unescape Escape special characters for JSON strings or unescape encoded text. Handles \n, \t, \", \\ and more. • Color Converter Convert HEX colors to RGB and HSL with live preview. Generates ready-to-use SwiftUI, UIKit, and CSS code snippets. WHY DEVTOOLBOX? • Native Performance: Built with SwiftUI for blazing-fast performance • Privacy First: All processing happens locally on your device • Universal App: Works seamlessly on iPhone, iPad, and Mac • Dark Mode Support: Easy on the eyes during late-night coding sessions • No Ads, No Tracking: Just pure functionality • Offline Ready: No internet connection required Perfect for mobile developers, web developers, API developers, QA engineers, security professionals, and students learning to code. DevToolbox is your pocket-sized development companion. Stop switching between websites and online tools - get everything you need in one native app.

Screenshots

appand pre4 screens
Dev Tool box2 screens

Verdict

The call

The clearest difference is ads: appand pre at none against Dev Tool box's shown. appand pre also leads on update cadence (every 6 days vs every 3 weeks) and iOS requirement (15.0 vs 18.0). On price, in-app purchases and device support 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.

UpkeepUpdate frequency

appand pre ships an update every 6 days, Dev Tool box every 3 weeks. The most recent releases landed on September 20, 2026 and September 17, 2026 respectively.

Scorecard3 real differences Ā· 3 level
appand pre versus Dev Tool box: the parameters behind the verdict, then further details
Parameterappand preDev Tool box
PriceFreeFree
Update frequencyEvery 6 days — betterEvery 3 weeks
AdsNo — betterYes
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad, Mac — better
Requires iOS15.0 — better18.0
Further details — not scored
Size155 MB4 MB
Age rating4+4+
DeveloperKulucky Rangers Inc.Seonggon Sim

In-app purchases

None

appand pre

No in-app purchases

None

Dev Tool box

No in-app purchases

Questions

Is appand pre free?
appand pre is free to download, with no in-app purchases.
Is Dev Tool box free?
Dev Tool box is free to download, with no in-app purchases.
Do appand pre or Dev Tool box have ads?
Dev Tool box shows ads; appand pre does not.
Which is updated more often, appand pre or Dev Tool box?
appand pre ships an update every 6 days, and Dev Tool box every 3 weeks. Most recently, appand pre was updated on September 20, 2026 and Dev Tool box on September 17, 2026.

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