Comparison

SipherMail vs Island Mail

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

Head to head
About

SipherMail

This secure email platform offers end-to-end encryption and AI-powered features like rewriting and summaries. It provides a modern, organized inbox experience with privacy controls and business account options.

Highlights
  • End-to-end encryption
  • AI email rewriting and summaries
  • Smart inbox organization
  • Remote image blocking
  • Business accounts
  • Multi-account support
Features
Read full description

SipherMail is a privacy-first, AI-powered email platform designed for individuals and businesses who value security, intelligence, and control. • Modern conversation-based email experience • End-to-end encryption (E2EE) for private communication • AI-powered email rewriting and summaries • Smart inbox organization • Business accounts and shared inboxes • Multi-account support • Remote image blocking and tracking protection SipherMail does not sell user data and does not include third-party advertising. AI features can be disabled in Privacy Mode.

About

Island Mail

Manage your email efficiently with a fast, native mail app. Quickly triage your inbox with swipe gestures, compose rich text emails, and seamlessly share content to other apps or create notes and tasks. Customize themes and rules for a personalized experience.

Highlights
  • Swipe to triage emails
  • Paging swipe for quick reading
  • Rich text email composer
  • One-tap email to note/task/event
  • Customizable themes and rules
  • Unified inbox for multiple accounts
  • Private by design, no tracking or ads
Features
Read full description

Control your email. Don't let it control you. Island Mail is a fast, triage-focused, native mail app for iPhone, iPhone Duo, and iPad. FLY THROUGH YOUR INBOX • Swipe to delete, archive, star, or share — right from the list. • Slide through emails like cards off a deck with a smooth paging swipe: read one, act on it, and glide to the next. • Multi-select to archive, mark, or trash in bulk — with undo. • Fast search across every account, with filters for unread, starred, and dates. A COMPOSER THAT'S POWERFUL — AND FUN • Rich text, lists, signatures, and emoji. • Full-fidelity drafts, saved automatically. • Clean, readable emails. • Playful text styles — flip it upside down, go leetspeak, and more. SHARE SUITE — PUT EVERY EMAIL WHERE IT BELONGS Turn any email into a note, task, or event in one tap: • Built-in targets: DEVONthink, Things, Fantastical, OmniFocus, Drafts, and more. • Set a reminder or add it to your calendar. • Export as PDF, text, or .eml. • Build your own targets for any app with a URL scheme. • Note and task shares carry a durable link straight back to the source email. MAKE IT YOURS • Ten beautiful themes — light, dark, and everything between. • Custom folders, rules, block-sender, and one-tap unsubscribe. WORKS WITH YOUR ACCOUNTS • Gmail, iCloud, Outlook / Office 365, Fastmail, and any IMAP account. • Multiple accounts with a unified inbox. • Native iPhone and iPad layouts — made for iPad, not stretched to fit. PRIVATE BY DESIGN • Your credentials live only in the iOS Keychain. • No tracking, no ads, no data collection. Your mail is yours. FREE TO USE Island Mail is free for everyday email. The Share Suite — one-tap sharing to your favorite apps and your own custom targets — includes a free 7-day trial, then a single one-time purchase to unlock.

Screenshots

SipherMail4 screens
Island Mail4 screens

Verdict

The call

The clearest difference is update cadence: SipherMail at every 5 days against Island Mail's every 10 days. SipherMail also leads on iOS requirement (17.0 vs 26.5). On price, rating, ratings volume and ads 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. SipherMail sells 6 in-app purchases, starting at $9.99 per month and Island Mail sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for SipherMail against 5.0 for Island Mail. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

SipherMail ships an update every 5 days, Island Mail every 10 days. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

Scorecard2 real differences · 8 level
SipherMail versus Island Mail: the parameters behind the verdict, then further details
ParameterSipherMailIsland Mail
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Positive reviews—100.0% of reviews
Number of ratings11
Update frequencyEvery 5 days — betterEvery 10 days
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS17.0 — better26.5
Further details — not scored
Size73 MB21 MB
Age rating4+4+
DeveloperTHE TRISUN L.L.C-FZWiredIsle LLC

In-app purchases

6 purchases

SipherMail

Subscriptions2
  • SipherMail Pro$9.991 Month
  • SipherMail Pro Yearly$99.991 Year
One-time4
  • AI Credits – 100$5.99
  • AI Credits – 500$19.99
  • AI Credits – 2000$59.99
Show 1 more
  • AI Credits – 10000$249.99
1 purchases

Island Mail

One-time1
  • Share Suite$14.99

Questions

Is SipherMail free?
SipherMail is free to download, with in-app purchases available.
Is Island Mail free?
Island Mail is free to download, with in-app purchases available.
Which has better reviews, SipherMail or Island Mail?
SipherMail and Island Mail are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do SipherMail or Island Mail have ads?
Neither SipherMail nor Island Mail shows ads.
Which is updated more often, SipherMail or Island Mail?
SipherMail ships an update every 5 days, and Island Mail every 10 days. Most recently, SipherMail was updated on October 28, 2026 and Island Mail on October 29, 2026.

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