Comparison

UK Postbox vs Open Minis

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

Head to head
About

UK Postbox

Manage your virtual mailbox and physical address from anywhere. View incoming mail, process items like scanning or forwarding, and send letters online. Requires a UK Postbox account.

Highlights
  • Dashboard overview
  • Manage inbox items
  • Send letters online
  • Account settings
  • Virtual address management
  • Mail forwarding
Features
Read full description

The power of the UK Postbox platform on your phone. Access your account using the app to manage your post and virtual address using features such as: Dashboard Overview - a snapshot of your account information: Client ID Monthly scan limits Page & parcel scan limits Balance Transaction History Manage Your Inbox - control post on a case-by-case basis: Return to sender Delete the item Open & scan contents Scan pages Forward to another location Store physically or digitally Recycle or shred mail Contact - speak to the relevant people you need: Customer services Mailroom scanning Mailroom forwarding Technical support Parcel management Verification team Banking Compliance N13 London Office Send Letters Online - sending letters on your behalf Upload a PDF of your letter Provide delivery information Add any notes We’ll post it for you within the UK Account Settings - manage your UK Postbox account Update personal data Renewal dates Virtual address information Default action when receiving mail Notifications Please note: A UK Postbox account is required to use this app to its full functionality. Visit www.ukpostbox.com for more information on signing up.

About

Open Minis

This AI agent runs locally on your device, taking actions like browsing the web, managing your schedule, and controlling smart home devices. It integrates deeply with iOS frameworks and allows you to bring your own API keys from various AI providers. Customize its capabilities with a skills system and enjoy persistent memory for a personalized experience.

Highlights
  • On-device AI agent
  • Multi-model AI provider support
  • Deep iOS framework integration
  • Built-in web browser
  • Customizable skills system
  • Persistent memory
  • Siri Shortcuts integration
Features
Read full description

Minis — Local-First On-Device AI Agent Minis is a local-first, on-device AI agent that goes beyond chat. All your data stays on your iPhone — nothing is uploaded to a server by default. Running locally means lower latency and stronger privacy, while the agent still takes real action: browsing the web, accessing your health data, managing your schedule, controlling your smart home, and automating complex tasks. Local-First AI Agent Unlike cloud-only chatbots, Minis runs directly on your device and keeps your data there. The agent executes multi-step tasks autonomously, using tools and native iOS frameworks to get things done — not just answer questions, and not just relay everything to the cloud. Multi-Model, Your Choice Bring your own API key. Choose from leading AI providers: • Anthropic Claude • OpenAI GPT • Google Gemini • DeepSeek • Kimi (Moonshot AI) • OpenRouter • Any OpenAI-compatible endpoint Deep iOS Integration The agent accesses Apple frameworks natively: • HealthKit — steps, heart rate, sleep, workouts, SpO₂ • Calendar & Reminders — create events, check availability, manage tasks • HomeKit — control lights, switches, scenes, and smart accessories • Photos — search, organize, and export from your library • Location & Maps — current location, directions, nearby POIs • Vision — OCR text recognition, object detection, barcode scanning • Speech — real-time transcription and text-to-speech • Weather — current conditions, hourly and daily forecasts Built-in Web Browser Navigate pages, take screenshots, extract content, fill forms, and interact with websites — all driven by the AI agent in the background. Skills System Import or create custom AI skills to extend the agent's capabilities. Share skills with others or build your own for specialized workflows. Persistent Memory The agent remembers your preferences, project context, and recurring patterns across sessions — building a personalized assistant that improves over time, all stored locally on your device. Siri Shortcuts Automate AI tasks with Siri and the Shortcuts app. Send prompts with file attachments, wait for results, and chain into complex workflows — all hands-free. Privacy by Design Your API keys and data stay on-device. Fine-grained permission controls let you decide exactly which personal data the agent can access. No account required. No data collected.

Screenshots

UK Postbox4 screens
Open Minis4 screens

Verdict

The call

The clearest difference is rating: Open Minis at 4.9 against UK Postbox's 2.3. Open Minis also leads on review sentiment (96% vs 64%) and ratings volume (87 vs 3). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Open Minis holds the better App Store score, 4.9 against 2.3. That said, the two scores are not equally well evidenced: Open Minis has 87 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 64% of UK Postbox's written reviews are positive against 96% of Open Minis's.

UpkeepUpdate frequency

UK Postbox ships an update monthly, Open Minis weekly. The most recent releases landed on October 3, 2026 and October 15, 2026 respectively.

Scorecard4 real differences · 6 level
UK Postbox versus Open Minis: the parameters behind the verdict, then further details
ParameterUK PostboxOpen Minis
PriceFreeFree
Rating2.3 (3 ratings)4.9 (87 ratings) — better
Positive reviews63.6% of reviews96.1% of reviews — better
Number of ratings387 — better
Update frequencyMonthlyWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better16.0
Further details — not scored
Size34 MB398 MB
Age rating4+17+
DeveloperiPostalMail™森 王

Customer experience

UK Postbox

All ratings3 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews22 reviews
Positive63.6%
Neutral9.1%
Negative27.3%

Open Minis

All ratings87 ratings
Positive97.7%
Neutral1.1%
Negative1.1%
Written reviews77 reviews
Positive96.1%
Neutral2.6%
Negative1.3%

In-app purchases

None

UK Postbox

No in-app purchases

None

Open Minis

No in-app purchases

Questions

Is UK Postbox free?
UK Postbox is free to download, with no in-app purchases.
Is Open Minis free?
Open Minis is free to download, with no in-app purchases.
Which has better reviews, UK Postbox or Open Minis?
Open Minis is rated higher. UK Postbox averages 2.3 out of 5 from 3 ratings, while Open Minis averages 4.9 from 87 ratings.
Do UK Postbox or Open Minis have ads?
Neither UK Postbox nor Open Minis shows ads.
Which is updated more often, UK Postbox or Open Minis?
UK Postbox ships an update monthly, and Open Minis weekly. Most recently, UK Postbox was updated on October 3, 2026 and Open Minis on October 15, 2026.

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