Comparison

Doom Coder vs Anvil

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

Head to head
About

Doom Coder

Receive instant alerts on your iPhone and iPad when your AI coding agents complete tasks, encounter errors, or require approval. This app also offers a prompt refiner and on-device notes, with optional API key integration for enhanced privacy.

Highlights
  • Real-time coding agent notifications
  • Prompt refiner with developer prompt library
  • On-device notes with checklists and reminders
  • Mac pairing for live agent status
  • Privacy-focused design with no servers
  • Optional API key integration
Features
Read full description

Doom Coder sends a notification to your iPhone and iPad the moment your AI coding agents finish, fail, or stop to ask for approval — so you can start a long run, walk away, and trust your phone to call you back. It pairs with the free Doom Coder app for Mac, which watches your agents and keeps your Mac awake while they work. When an agent needs you, the alert reaches your phone in seconds. WORKS WITH YOUR AGENTS Doom Coder understands the events from Claude Code, Cursor, VS Code Copilot, Copilot CLI, Windsurf, Codex CLI, and opencode. You choose exactly which events alert you — completed, failed, waiting for approval, waiting for input — and mute the rest. USEFUL THE SECOND YOU OPEN IT No account. No sign-in. No Mac required to get started. • Prompts — A prompt refiner, not a chatbot. Type a rough request and get back a clean, structured prompt you can paste straight into your agent. Keep refining over follow-up turns, and pull from a built-in library of developer prompts grouped by Refactor, Tests, Debug, Review, Explain, Git, Docs, and Scaffold. • Notes — On-device notes with checklists, reminders, pinning, and search. Turn any note into a prompt with one tap. • Dashboard — Once you pair a Mac, see every agent's live status and drive the Mac's keep-awake controls from your phone. PRIVATE BY DESIGN No servers. No analytics. No tracking. Everything you write stays on your device. When you pair a Mac, sync happens only through your own private iCloud account using Apple CloudKit — your data is never visible to us or anyone else. ON-DEVICE OR BRING YOUR OWN KEY The prompt refiner runs on Apple Intelligence entirely on your device, so nothing leaves your phone. Prefer your own model? Add an OpenAI or Anthropic API key — it is stored only in your device's Keychain, and only the text you choose to enhance is ever sent. Enhancing is always optional. BUILT FOR iOS 26 AND iPadOS 26 A native interface with the system Liquid Glass design, a macOS-style sidebar on iPad, and time-sensitive notifications that reach you even through Focus. Doom Coder is open source. Source, documentation, and support: github.com/katipally/Doom-Coder

About

Anvil

Features
Read full description

Anvil is a pocket-sized toolbox of 17 everyday developer utilities. Every tool processes its input on your device. No account, no ads, no tracking, and no app backend. FORMAT & DECODE • JSON Formatter — beautify, minify, validate • Base64 — encode / decode text • URL — percent-encode / decode • JWT Decoder — inspect header & payload (local only) GENERATE • UUID — batch v4 identifiers • Hash — MD5 / SHA-1 / SHA-256 / SHA-512 • Random String — passwords & tokens • QR Code — share or save CONVERT • Number Base — bin / oct / dec / hex • Unix Time — epoch ↔ human date • Cron — explain expressions • Unicode — text ↔ \u escapes TEXT • Regex Tester — live matches & groups • Text Diff — compare two snippets • Case Converter — camel / snake / kebab … • Text Analyzer — characters, words, lines • List Comparer — intersection, union & diff SMART PASTE Copy something, open Anvil, and it points you to the right tool with your content already filled in. PRIVACY FIRST Tool inputs are processed on-device and are never uploaded. Anvil has no account, ads, analytics, or app backend. Optional Pro purchase and restore use Apple StoreKit. ANVIL PRO — one-time unlock, no subscription • Share Extension — run tools on text shared from any app • Shortcuts & Siri • Clipboard History • Optional Smart Paste auto-open (off by default) One-time purchase, no subscription.

Screenshots

Doom Coder4 screens
Anvil4 screens

Verdict

The call

The clearest difference is in-app purchases: Doom Coder at none against Anvil's 1. Anvil's advantage is iOS requirement (17.0 vs 26.0). On price, update cadence, ads and device support 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. Anvil sells 1 one-off in-app purchase. Doom Coder asks for nothing beyond the download.

UpkeepUpdate frequency

Doom Coder ships an update weekly, Anvil every 6 days. The most recent releases landed on October 8, 2026 and September 30, 2026 respectively.

Scorecard2 real differences · 7 level
Doom Coder versus Anvil: the parameters behind the verdict, then further details
ParameterDoom CoderAnvil
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyWeeklyEvery 6 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.017.0 — better
Further details — not scored
Size5 MB6 MB
Age rating4+4+
DeveloperYashwanth Reddy Katipally武汉回到未来科技有限公司

In-app purchases

None

Doom Coder

No in-app purchases

1 purchases

Anvil

One-time1
  • Anvil Pro$4.99

Questions

Is Doom Coder free?
Doom Coder is free to download, with no in-app purchases.
Is Anvil free?
Anvil is free to download, with in-app purchases available.
Do Doom Coder or Anvil have ads?
Neither Doom Coder nor Anvil shows ads.
Which is updated more often, Doom Coder or Anvil?
Doom Coder ships an update weekly, and Anvil every 6 days. Most recently, Doom Coder was updated on October 8, 2026 and Anvil on September 30, 2026.

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