Comparison

Deploy vs Beta mail

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

Head to head
About

Deploy

Features
Read full description

On device private AI agents that live entirely on your iPhone. No accounts. No cloud. No tracking. Every conversation, every image, every document stays on your device — even with airplane mode on. Built for people who want a private ChatGPT or Claude alternative that works offline — without the account, the cloud round-trips, or the data harvesting. Pick an agent and start. Or build your own in five guided steps. — THE FIVE BUILT-IN AGENTS — Scout — your research agent. Searches the web with citations, summarizes findings, and remembers context across questions. Lens — your vision agent. Drop in a photo, screenshot, or whiteboard shot and ask anything about it. Ghost — your writing agent. Drafts, rewrites, edits, and shifts tone. The output reads like you, not like a chatbot. Vault — your document agent. Load PDFs, text files, or Markdown notes and ask questions. Answers cite the page they came from. Spark — your brainstorming agent. Pressure-tests ideas, runs lateral riffs, and breaks creative blocks. — BUILD YOUR OWN AGENT — A five-step guided wizard turns an idea into a working agent in under a minute. Choose its purpose, give it tools, pick a model, set its look. The on-device model writes its name, picks an emoji, and drafts the system prompt for you to approve. Unlimited custom agents. Each one keeps its own personality, its own toolset, and its own accent color. — TRUE ON-DEVICE AI — Powered by Apple's MLX framework with 4-bit quantized models that download once and then run forever, offline. Supported models include Qwen 3.5 in 0.8B, 2B, and 4B sizes — all multimodal with vision — plus Ministral 3B for fast text-only chat. More models are being added regularly, and we encourage you to contact us for requests. Pick the model that fits your iPhone. Switch any time. — FEATURES — · Streaming token output, native SwiftUI, dark-mode first · Per-agent accent colors and emoji · Extended thinking mode you can toggle per message · Web search via DuckDuckGo with proper citations · Native image understanding for screenshots, photos, and scans · Local document Q&A across PDF, TXT, and Markdown · VoiceOver, Dynamic Type, and Reduce Motion all fully supported — PRIVACY, FOR REAL — · 100% on-device inference. No model call ever leaves the iPhone. · No account. No sign-in. No email. · No analytics. No telemetry. No third-party SDKs reading anything. · Conversations, attached images, and uploaded documents stay on your device. · The only network call the app ever makes is your explicit web search, and only when you tap Scout. The privacy posture is a feature, not a marketing line. Your iPhone is the entire system. — REQUIREMENTS — iPhone running iOS 18 or later. Models download on first use; sizes range roughly from 600 MB to 3 GB depending on which model you pick. — SUPPORT — Questions, suggestions, bug reports: see the in-app Help screen.

About

Beta mail

Features
Read full description

451 Mail takes the IMAP protocol and puts a new spin on a very old protocol. A unique visual interface allows you to hide, delete and blacklist individual users and entire domains. Notifications from the 451 publishing system follow the mail protocol, but with custom headers and custom bodies that create a fully distributed system for 451 notification. Parties can give signed referrals that introduce a party and push an email into the inbox owner's awareness. Comments associated with 451 publications can flow through the client also, leveraging email to create an advanced communication system.

Screenshots

Deploy4 screens
Beta mail4 screens

Verdict

The call

Deploy and Beta mail are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support 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.

ScorecardNo meaningful differences
Deploy versus Beta mail: the parameters behind the verdict, then further details
ParameterDeployBeta mail
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 2 months—
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.017.0 — better
Further details — not scored
Size26 MB3 MB
Age rating17+4+
DeveloperPixel ManagementScott Francis

In-app purchases

None

Deploy

No in-app purchases

None

Beta mail

No in-app purchases

Questions

Is Deploy free?
Deploy is free to download, with no in-app purchases.
Is Beta mail free?
Beta mail is free to download, with no in-app purchases.
Do Deploy or Beta mail have ads?
Neither Deploy nor Beta mail shows ads.

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