SipherMail vs Kimpa
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- End-to-end encryption
- AI email rewriting and summaries
- Smart inbox organization
- Remote image blocking
- Business accounts
- Multi-account support
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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.
Kimpa
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Kimpa is email, calendar and files for your Kimpa business account, in one app. Mail Your inbox sorts itself into Primary, Social, Promotions, Updates and Forums, and Smart view pulls out what's important and what's waiting for your reply. Snooze a message, schedule a send, star, archive and search across every mailbox you add. Replies and forwards keep the original message's formatting, and emails look the way their senders designed them, in light and dark mode. Warnings when something looks wrong When a message may be impersonating a person or company you deal with, Kimpa shows a warning above it, so you can check before you reply or pay. Calendar, Contacts, Tasks, Notes and Reminders Plan meetings and events, keep your contacts in one place, track tasks, write notes and set reminders. They all use the same Kimpa account as your mail. Kimpa Drive Store your files, move them between folders, share them, search all of Drive and restore from trash. Kimpa Docs, Sheet and Present Open documents, spreadsheets and presentations from Drive or from mail and edit them in the app. Kimpa Team The Team tab opens Kimpa Team, where your workspace has its channels, direct messages, calls and meetings. Sign in with your Glemad Account. A Kimpa account is required.
Screenshots
Verdict
The clearest difference is in-app purchases: Kimpa at none against SipherMail's 6. Kimpa also leads on iOS requirement (15.0 vs 17.0). SipherMail's advantage is update cadence (every 5 days vs every 2 weeks). On price, ads and device support 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
Both are free to download. SipherMail sells 6 in-app purchases, starting at $9.99 per month. Kimpa asks for nothing beyond the download.
SipherMail ships an update every 5 days, Kimpa every 2 weeks. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.
| Parameter | SipherMail | Kimpa |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 73 MB | 41 MB |
| Age rating | 4+ | 17+ |
| Developer | THE TRISUN L.L.C-FZ | Glemad |
In-app purchases
SipherMail
- SipherMail Pro$9.991 Month
- SipherMail Pro Yearly$99.991 Year
- AI Credits – 100$5.99
- AI Credits – 500$19.99
- AI Credits – 2000$59.99
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- AI Credits – 10000$249.99
Kimpa
No in-app purchases









