Comparison

Tuta Mail vs HivemindOS Mobile

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

Head to head
About

Tuta Mail

Secure your communications with an encrypted email service offering end-to-end encryption for emails and contacts. Enjoy features like anonymous registration, an ad-free experience, and a free encrypted calendar. Protect your privacy with a service developed and hosted in Germany.

Highlights
  • End-to-end encryption
  • Anonymous registration
  • Ad-free experience
  • Free encrypted calendar
  • Quantum-safe encryption
  • Open source code
Features
Read full description

PROTECT YOUR PRIVACY WITH TUTA MAIL – FREE, SECURE & ENCRYPTED EMAIL Take control of your email with Tuta Mail, the world’s most secure email service, trusted by over 10 million users. With end-to-end encryption, your emails and contacts stay private. Fast, open source, and free: Tuta Mail is built with the highest security standards. WHY CHOOSE TUTA MAIL? Stay Secure • Quantum-Safe Encryption: Your entire mailbox and contacts are fully end-to-end encrypted – only you can access them. • Zero Tracking: We never track or profile you. Your data is yours. • Anonymous Registration: Sign up without providing a phone number or personal details – for free or pay anonymously with cash or cryptocurrency. • Open Source: Our code is publicly available for independent security review. Boost Your Productivity • Free Secure Email: Get a free email address with @tutamail.com, @tutanota.com, @tutanota.de, @tuta.io, or @keemail.me and 1 GB of free storage. • Exclusive Domain: Upgrade to a paid plan to create a short @tuta.com email address. • Auto-Sync: Your emails and contacts sync seamlessly across the app, web, and desktop clients. • Offline Access: Read and manage your encrypted emails even without an internet connection. • Contacts App: Sync your Tuta contacts to your phone. Simple & Intuitive • User-Friendly Interface: Clean, modern design with light and dark mode. • Quick Swipe Gestures: Easily organize emails with swipe-to-archive or swipe-to-trash. • Full-Text Search: Securely search your encrypted emails. • Smart Notifications: Delete or move emails directly from notifications to save time. BONUS: FREE ENCRYPTED CALENDAR APP Your Tuta Mail account includes a free encrypted calendar, giving you the same privacy for scheduling and event management. Stay organized while keeping your data safe. WHO IS BEHIND TUTA MAIL? Freedom fighters committed to protecting freedom of speech and your right to privacy! • Developed & Hosted in Germany: Adheres to strict GDPR data protection laws. • Private by Design: We can’t access your data – secure password reset ensures your privacy. • Secure Transmission: Industry-leading security with TLS, PFS, DMARC, DKIM, DNSSEC, and DANE for safe email delivery. TRUSTED BY SECURITY EXPERTS "Tuta provides an exceptional level of security and privacy... If security is your priority, there’s not much better than Tuta." — TechRadar "Since Tuta is open source and has amazing products in development, I moved my email there." — Journalist Dan Arel "Tuta’s email security is unmatched. Its mobile apps are fast and user-friendly, with fair pricing and a free option." — CyberSynchs JOIN MILLIONS WHO TRUST TUTA MAIL Keep Your Email Private: Download Tuta Mail today and join millions who trust us for secure, encrypted communication. Website: https://tuta.com Open Source Code: https://github.com/tutao/tutanota Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula

About

HivemindOS Mobile

Control powerful AI agents from your phone to write code, generate images, research topics, and manage operations. Run agents on your own server, on-device, or paired with your Mac. Supports various AI models and offers voice interaction.

Highlights
  • AI agent control center
  • Code writing and shipping
  • Image generation
  • Topic research and summarization
  • On-device and server-based AI
  • Voice command and calls
  • Apple Shortcuts integration
Features
Read full description

HivemindOS Mobile is a mobile command center for AI agents that do real work — not just code. Chat with an agent that can write and ship software, generate images, research a topic, take notes, and run your operations — from your phone, wherever you are. Three ways to run, no lock-in: • YOUR SERVER — point the app at your own machine or VPS and drive a full agent remotely over an encrypted tailnet or your own connection. • ON-DEVICE — run a local model entirely on your iPhone with Apple's MLX. Fully offline. Nothing leaves the phone. • PAIRED TO YOUR MAC — connect to the HivemindOS desktop app and talk to your whole fleet of agents from anywhere. Scan a QR code once and you're in. BRING YOUR OWN MODEL Anthropic (API key or Claude subscription via OAuth), OpenRouter, additional cloud providers, and local inference servers such as Ollama, LM Studio, llama.cpp, and vLLM. Build a model queue with automatic fallback and retry, and switch models per chat. DOES MORE THAN CODE • Generate images right in the chat and save them to your phone • Write, edit, and ship code with a real interactive terminal per conversation • Research, summarize, and draft with streaming responses and live tool tracking • Image and file attachments for multimodal models • A shared brain (Obsidian vault) that gives agents memory across sessions • Wallets, autonomous companies, and an approvals inbox when paired to a hub VOICE, SHORTCUTS & MORE • Call your agent — a real voice conversation, with a fully on-device speech pipeline for offline calls • Apple Shortcuts, Siri, and Action Button: capture a note, add a task, ask a question, or hear a daily briefing • Plan mode that blocks writes at the runtime layer, not just by prompt • A fleet of named agents, each on its own model — chat or call any of them PRIVATE BY DESIGN Your chats go to the machines and model providers YOU choose — your server, your Mac, or the provider whose key you entered. Your HivemindOS account keeps your profile and credit balance consistent across your connected devices. Diagnostics stay on your device. Open source. Built by a solo developer who wanted a genuinely good way to get things done from a phone. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Tuta Mail4 screens
HivemindOS Mobile4 screens

Verdict

The call

The clearest difference is ratings volume: Tuta Mail at 3.8K against HivemindOS Mobile's 1. HivemindOS Mobile's advantage is rating (5.0 vs 4.7). On price, update cadence, ads and in-app purchases 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. Tuta Mail sells 4 in-app purchases, starting at $3.99 per month and HivemindOS Mobile sells 3 in-app purchases, starting at $25.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

HivemindOS Mobile holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Tuta Mail has 3.8K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Tuta Mail ships an update weekly, HivemindOS Mobile every 4 days. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 8 level
Tuta Mail versus HivemindOS Mobile: the parameters behind the verdict, then further details
ParameterTuta MailHivemindOS Mobile
PriceFreeFree
Rating4.7 (3.8K ratings)5.0 (1 ratings) — better
Positive reviews65.4% of reviews—
Number of ratings3.8K — better1
Update frequencyWeeklyEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better17.0
Further details — not scored
Size85 MB191 MB
Age rating4+4+
DeveloperTutao GmbHRizzma, Inc.

Customer experience

Tuta Mail

All ratings3,731 ratings
Positive93.9%
Neutral1.5%
Negative4.6%
Written reviews1,218 reviews
Positive65.4%
Neutral7.9%
Negative26.7%

HivemindOS Mobile

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Tuta Mail

Reported bugs

4 issues
  • Login credentials not working
  • Accounts being locked or deleted unexpectedly
  • Inability to restore deleted accounts
  • Syncing issues between devices

Requested features

6 requests
  • Pinch-to-zoom functionality
  • Improved email organization tools (labels, folders, etc.)
  • Offline access mode
  • Ability to set custom notification sounds
  • Separate app for calendar and contacts
Show 1 more
  • PGP encryption support

HivemindOS Mobile

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

Tuta Mail

Subscriptions4
  • Revolutionary (Monthly)$3.991 Month
  • Legend (Monthly)$9.991 Month
  • Revolutionary (Yearly)$39.991 Year
Show 1 more
  • Legend (Yearly)$99.991 Year
3 purchases

HivemindOS Mobile

Subscriptions3
  • HivemindOS Plus$25.991 Month
  • HivemindOS Pro$64.991 Month
  • HivemindOS Max$129.991 Month

Questions

Is Tuta Mail free?
Tuta Mail is free to download, with in-app purchases available.
Is HivemindOS Mobile free?
HivemindOS Mobile is free to download, with in-app purchases available.
Which has better reviews, Tuta Mail or HivemindOS Mobile?
HivemindOS Mobile is rated higher. Tuta Mail averages 4.7 out of 5 from 3.8K ratings, while HivemindOS Mobile averages 5.0 from 1 ratings.
Do Tuta Mail or HivemindOS Mobile have ads?
Neither Tuta Mail nor HivemindOS Mobile shows ads.
Which is updated more often, Tuta Mail or HivemindOS Mobile?
Tuta Mail ships an update weekly, and HivemindOS Mobile every 4 days. Most recently, Tuta Mail was updated on October 29, 2026 and HivemindOS Mobile on October 25, 2026.

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