ChatInbox vs 1Stack Stellar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ChatInbox
This app reimagines your email by organizing it around people, not dates. View all conversations with a contact in a chat-style format, making it easy to find past messages and attachments. It supports multiple email accounts and devices, offering a streamlined inbox experience.
- Contact-centered inbox
- All accounts in one inbox
- Smart contact grouping
- Attachments by person
- Calendar view
- Email reminders
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In a traditional inbox, emails from the people who matter most get buried under everything else. ChatInbox puts people first — grouping every message by contact, so each person's conversation is always one tap away. Tap a contact. See everything you've ever exchanged — messages, attachments, history — all in one clean, chat-style view. No more hunting through a chronological pile of unread mail to find that one message from your client, your accountant, or your kid's school. If you've ever wished email worked like iMessage — but for every account, every provider, all in one place — ChatInbox is what you've been looking for. CONTACT-CENTERED INBOX Every email is grouped by sender. Your contact list shows the most recent conversation first, each person appearing only once. Open a contact to see your full history, displayed as a natural back-and-forth conversation. UNIFIED ACCOUNTS Connect Gmail, Outlook, iCloud, and any IMAP account. All your email, all your contacts, one inbox — synced across iPhone, iPad, and Mac. SMART CONTACT GROUPING ChatInbox automatically groups related contacts — airlines, hotels, online shopping, subscriptions — so you can manage entire categories of email at once. CALENDAR EMAIL FILTER Browse your inbox by date using the built-in calendar view. Find any message from any day without searching. VISUAL ORGANIZATION Tag and organize emails on a Kanban board. Track what needs attention, what's waiting for a reply, and what's done. REMINDERS & NOTIFICATIONS Set custom reminders on any email. Get notified about messages that matter and let the rest wait. MARKDOWN COMPOSER Write polished emails with built-in Markdown formatting. Style text clearly without wrestling with toolbars. PRIVACY FIRST Your emails stay on your devices. ChatInbox connects directly to your mail servers — no third-party servers, no data mining, no tracking. Previously used Unibox and miss email grouped by sender? ChatInbox carries that vision forward — rebuilt from the ground up for modern Apple platforms, with features Unibox never had. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
1Stack Stellar
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Stellar is a powerful mobile companion for managing your cloud infrastructure on the go. Designed for developers, IT professionals, and system integrators, the app provides real-time access to your Stellar cloud servers, ensuring performance, control, and flexibility wherever you are.
Screenshots
Verdict
The clearest difference is in-app purchases: 1Stack Stellar at none against ChatInbox's 3. 1Stack Stellar also leads on iOS requirement (13.0 vs 17.0). ChatInbox's advantage is update cadence (every 5 days vs every 2 months). 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. ChatInbox sells 3 in-app purchases, starting at $4.99 per month. 1Stack Stellar asks for nothing beyond the download.
ChatInbox ships an update every 5 days, 1Stack Stellar every 2 months. The most recent releases landed on October 4, 2026 and October 10, 2026 respectively.
| Parameter | ChatInbox | 1Stack Stellar |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (29 ratings) — better | — |
| Positive reviews | 61.8% of reviews | — |
| Number of ratings | 29 — better | — |
| Update frequency | Every 5 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 17.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 45 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | Innovatism LLC | CoreTech s.r.l. |
In-app purchases
ChatInbox
- Monthly Premium$4.991 Month
- Yearly Premium7 Days trial$29.991 Year
- Lifetime Premium$59.99
1Stack Stellar
No in-app purchases
Questions
Is ChatInbox free?
Is 1Stack Stellar free?
Do ChatInbox or 1Stack Stellar have ads?
Which is updated more often, ChatInbox or 1Stack Stellar?
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