Comparison

dHP vs GAllery

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

Head to head
About

dHP

Create and run HTML projects on your iPhone without coding knowledge. Easily integrate AI-generated code, preview instantly, and save your work. Turn your creations into standalone apps on your home screen.

Highlights
  • AI integration for code generation
  • Code editor with syntax highlighting
  • Instant code preview and debugging
  • Safe, project-specific data storage
  • Multiple project templates
  • Add projects to home screen
  • Export projects as ZIP or HTML
Features
Read full description

dev HTML Playground (dHP) runs HTML written by ChatGPT or any AI on your iPhone: free, no ads, and no coding knowledge needed. No computer required. Copy the AI's reply, paste it, and it becomes your own app. Its data stays on your phone, and it opens from your Home Screen like a regular app. IF YOU'RE LOOKING FOR - A way to run HTML that ChatGPT made, on an iPhone, for free, with no ads and no programming knowledge - A place to keep the budget tracker or diary an AI built for you, with its data, and use it every day - A way to build your own tools without owning a computer - A quick way to view HTML documents an AI wrote for you FEATURES Code Editor A syntax-highlighted editor for HTML, CSS and JavaScript with autosave and file management (add, rename, delete). Smart quotes and other typing "corrections" that break code are disabled. Instant Preview Run your code with one tap. console.log output and errors appear in a built-in console, so you can debug entirely on your phone. AI Integration A ready-made environment prompt for AIs like ChatGPT and Claude. Paste it, and the AI asks "What would you like to build?" — just answer in plain words. Bring the returned code in with one tap using "Paste & Replace All". You can finish real apps with zero programming experience. Safe Data Storage Every project ships with storage.js, a simple persistence library. Your apps' data is stored safely and kept separate per project. It also works in regular browsers, so your creations are portable. 7 Templates - Game (Crowd Rush): the real version of that "grow your crowd" ad game - Game (Pull the Pin): the real version of that pull-the-pin puzzle from the ads - Empty Project: start from a clean slate - Basic Sample: learn the ropes with a counter and notes - To-Do List: a practical task app - Habit Calendar: a monthly habit tracker - Game (NEON RUSH): a full neon mini-game demo Add to Home Screen Register your apps as Home Screen icons via Shortcuts and launch them like regular apps. Export Export as ZIP (for backup) or a single HTML file (for sharing). Send your work via AirDrop, save to Files, or continue editing on a Mac. Opening a saved .html file is just as easy: share it from the Files app and choose dHP. HTML that an AI exported "as a file", or that you received via AirDrop, becomes one of your apps. HTML Viewer Copy any HTML (like a document an AI wrote) and view it with one tap. Everything you view is kept in a history, and you can import it as a project to edit. Built-in Browser A browser tab for research or chatting with AI sites, so the whole loop stays in one app. About your AI Works with any AI you like — ChatGPT, Gemini, Claude and more. Free AIs are fine; smarter ones just nail it on the first try more often. And if something breaks, dHP catches the error for you — copy it, paste it back to your AI, and it gets fixed. The interface is available in English, Japanese and Simplified Chinese. Everything is free, with no ads. Your "I want to build something" — right in your pocket.

About

GAllery

Read full description

生成AIに書いてもらったコードを、貼り付けるだけでiPhoneの中で動かせます。パソコンは要りません。 生成AIにアプリを作ってもらったものの、動かす場所がなくて困ったことはありませんか。GAlleryは、その受け皿です。コードをコピーして貼り付け、実行を押すだけ。言語は自動で見分けます。 HTML、CSS、JavaScript、Pythonに対応。作ったものはアプリとして保存され、ホーム画面のような一覧からいつでも開けます。 主な機能 ・コードを貼り付けて、その場で実行 ・HTML、CSS、JavaScript、Pythonに対応 ・言語の自動判定 ・複数ファイルや画像をまとめて保存 ・コードの表示、編集、複製、削除 ・実行中の一時停止と速度変更 ・アイコン、名前、並び順を設定 ・コードと設定は端末内に保存 ・利用者のコードから外部ネットワークへの通信を遮断 ・広告、アカウント登録、アクセス解析なし こんな方に ・生成AIでアプリやツールを作ってみたい方 ・パソコンを持っていない、または手元にない方 ・プログラミングを学びはじめた方 ・思いついた小さな道具を、その場で形にしたい方 無料プランでは、アプリを1つ保存できます。 有料プラン「GAllery Pro」では、保存できるアプリ数の制限がなくなり、壁紙、テーマカラー、アイコンのサイズと名前表示をカスタマイズできます。GAllery Proは1か月ごとに自動更新されます。価格は購入画面に表示され、Apple Accountの設定からいつでも管理・解約できます。 利用規約: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ プライバシーポリシー: https://sites.google.com/view/tworks-gallery-6799646416

Screenshots

dHP4 screens
GAllery3 screens

Verdict

The call

dHP and GAllery are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

dHP ships an update every 9 days, GAllery every 5 days. Both last shipped on October 29, 2026.

ScorecardNo meaningful differences
dHP versus GAllery: the parameters behind the verdict, then further details
ParameterdHPGAllery
PriceFreeFree
Rating5.0 (6 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings6 — better—
Update frequencyEvery 9 daysEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.017.0
Further details — not scored
Size3 MB16 MB
Age rating17+4+
DeveloperYAMS (Japan)Daisuke Tsurukawa

In-app purchases

None

dHP

No in-app purchases

None

GAllery

No in-app purchases

Questions

Is dHP free?
dHP is free to download, with no in-app purchases.
Is GAllery free?
GAllery is free to download, with no in-app purchases.
Do dHP or GAllery have ads?
Neither dHP nor GAllery shows ads.
Which is updated more often, dHP or GAllery?
dHP ships an update every 9 days, and GAllery every 5 days. Most recently, dHP was updated on October 29, 2026 and GAllery on October 29, 2026.

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