Comparison

IronMail vs Fatmail

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

Head to head
About

IronMail

Access your corporate email on the go with this companion app. It connects to your organization's self-hosted IronMail server, offering features like push notifications, secure biometric login, and offline access to your messages.

Highlights
  • Read, compose, and manage corporate email
  • Real-time push notifications
  • Biometric authentication
  • Dark theme interface
  • Fast email search
  • Attachment support with previews
  • Offline access to cached emails
Features
Read full description

IronMail Mobile is the official companion app for the IronMail self-hosted corporate email platform. An active IronMail server account is required to use this app. This app does not provide email service on its own — it connects to your organization's existing IronMail server to give you mobile access to your corporate inbox. Features: - Read, compose, and manage your corporate email on the go - Real-time push notifications for new messages - Biometric authentication (Face ID / Touch ID) for secure access - Dark theme optimized interface - Fast search across all your emails - Attachment support with file previews - Offline access to cached emails IronMail is a self-hosted email platform that gives businesses complete control over their email infrastructure and data privacy. Learn more at ironmail.email Note: This is a companion app. You need an IronMail server account provided by your organization's administrator to sign in.

About

Fatmail

Features
Read full description

Fatmail is email built on a simple idea: your inbox is nobody's business but yours. Most email is scanned, profiled, and monetized. Every message you open reports back. Every newsletter knows when you read it, where you were, and what device you used. Fatmail is built to make all of that impossible. PRIVATE BY DESIGN Your mail is encrypted so that it stays yours. No ad targeting. No content scanning. No profile built quietly in the background. TRACKERS BLOCKED BY DEFAULT Remote images and tracking pixels are blocked before they load. Senders don't learn when you opened a message, how many times you read it, or where you were. NO CONTACTS UPLOAD Fatmail never asks for your address book. Autocomplete is built from your own mail, on your own device. A FAST, CLEAN INBOX Privacy shouldn't mean compromise. Fatmail is quick, quiet, and stays out of your way — swipe to archive, search that actually finds things, threading that makes sense. BUILT FOR THE LONG HAUL No ads, ever. We make money from people who pay us, not from advertisers who want your attention. Fatmail. Email that forgets you.

Screenshots

IronMail4 screens
Fatmail4 screens

Verdict

The call

IronMail and Fatmail 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

IronMail ships an update weekly, Fatmail fortnightly. The most recent releases landed on October 7, 2026 and September 27, 2026 respectively.

ScorecardNo meaningful differences
IronMail versus Fatmail: the parameters behind the verdict, then further details
ParameterIronMailFatmail
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyWeekly — betterFortnightly
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad — betteriPhone
Requires iOS16.016.0
Further details — not scored
Size31 MB3 MB
Age rating4+12+
DeveloperCarlos Ramirezderek flynn

In-app purchases

None

IronMail

No in-app purchases

None

Fatmail

No in-app purchases

Questions

Is IronMail free?
IronMail is free to download, with no in-app purchases.
Is Fatmail free?
Fatmail is free to download, with no in-app purchases.
Do IronMail or Fatmail have ads?
Neither IronMail nor Fatmail shows ads.
Which is updated more often, IronMail or Fatmail?
IronMail ships an update weekly, and Fatmail fortnightly. Most recently, IronMail was updated on October 7, 2026 and Fatmail on September 27, 2026.

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