Chat Mailer vs Delta Chat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Chat Mailer
Organize your IMAP emails into a chat-like view, making it easier to follow conversations. Supports a variety of popular email providers and automatically configures server settings.
- Chat view for IMAP emails
- Read past emails
- Supports custom folders
- Automatic server settings detection
- Multiple email provider support
Read full descriptionHide full description
Chat Mailer is an iOS application that supports chat view of IMAP email. Able to read past emails and build chat view. Folders other than INBOX and Sent box can be read by specifying your custom folders on server. Following email providers are supported: - Gmail - AOL - GMX - Zoho - Softbank Email(i) - KDDI AU ezweb (imap) - Yahoo Japan imap. - Nifty imap mail. - EMOBILE imap. Setting details are described in help. Basically you just type your full email address and password. Chat mailer will judge your IMAP and SMTP server settings. The iCloud mail need to setup app password.
Delta Chat
This decentralized messenger offers private, secure, and reliable instant messaging. It allows for easy setup on multiple devices and supports multiple chat profiles without requiring a phone number. Enjoy end-to-end encryption and the flexibility to run it with your own email or server.
- Decentralized instant messaging
- Private onboarding without phone number
- End-to-end encryption
- Multiple chat profiles
- Works on multiple devices
- Self-hosted option
Read full descriptionHide full description
Delta Chat is a reliable decentralized instant messenger that is easy and fun to use for friends, family, groups and organizations. Delta Chat is developed by a dedicated FOSS contributor community that jointly releases refinements and new features several times a year, across many stores and platforms world-wide. Features at a glance: • Private. Instant on-boarding without a phone number or other private data. • Friends & Family: Only chat with people you know. Unknown users cannot message or follow you without mutual consent. • Flexible. Supports multiple chat profiles and is easy to setup on multiple devices. • Reliable. Works under bad and adversarial network conditions. • Secure. Audited End-to-End encryption safe against network and server attacks. • Sovereign. Can be run with your own e-mail address or server. • FOSS. Fully Open Source/Free Software, built on Internet Standards.
Screenshots
Verdict
The clearest difference is price: Delta Chat at Free against Chat Mailer's $3.99. Delta Chat also leads on review sentiment (63% vs 20%) and update cadence (every 3 weeks vs every 3 months). On ads, in-app purchases, device support and iOS requirement 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
Delta Chat is free to download; Chat Mailer costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Chat Mailer ships an update every 3 months, Delta Chat every 3 weeks. The most recent releases landed on October 14, 2026 and October 18, 2026 respectively.
| Parameter | Chat Mailer | Delta Chat |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | — | 4.5 (127 ratings) — better |
| Positive reviews | 20.0% of reviews | 63.2% of reviews — better |
| Number of ratings | — | 127 — better |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 15.6 |
| Further details — not scored | ||
| Size | 9 MB | 61 MB |
| Age rating | 4+ | 4+ |
| Developer | TechKnowledge | merlinux |
Customer experience
Chat Mailer
Delta Chat
In-app purchases
Chat Mailer
No in-app purchases
Delta Chat
No in-app purchases
