Polymail vs Zero Inbox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Polymail
This app acts as an email command center for professionals, offering features like real-time open tracking, scheduled sends, and message snoozing. It helps users manage their inbox efficiently for sales, fundraising, and deal-making.
- Real-time open tracking
- Scheduled email sends
- Snooze messages
- Swipe actions for organization
- Contact data and social context
- Templates and reminders
- Attachment and click tracking
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The most important lever in your GTM stack is still your inbox. Polymail is the email command center trusted by founders, operators, and dealmakers for GTM execution, follow-up, and live engagement intel. - Track opens in real-time, per recipient - Schedule sends for perfect timing - Snooze messages to read later - Organize faster with swipe actions and tags - Surface rich contact data and social context - Save time with templates and reminders - Stay in flow across desktop, mobile, and web - Works with Gmail, Outlook, and more Whether you're raising a round, closing a pilot, or keeping your dealflow warm—Polymail gives you leverage where it matters most: the inbox. Join 10,000+ users who use Polymail to move faster, follow up smarter, and close more deals. - Unlimited email tracking - know exactly when and by whom your messages are read. - Snooze emails to be read later, when you need them. - Schedule emails to automatically be sent later - whenever you want. - Calendar integration makes it easy to schedule meetings over email. - Detailed contact profiles give you everything you need to know about who you're emailing. - One-tap unsubscribe removes unwanted spam in an instant. - Attachment and Click tracking - get notified when your recipients download your attachments or click on your links. - Activity Feed - see all your message tracking activity in a real time feed! - Quickly organize your inbox with customizable swipe actions. - Push notifications and background mail syncing keep your inbox always up to date. - Unified inbox and search across all your accounts. "Polymail is the first mail app I genuinely love" - Matthew Hussey, Editor-in-Chief of The Next Web
Zero Inbox
This email application streamlines inbox management with customizable multi-action swipe gestures. Effortlessly process emails by assigning multiple tasks to a single swipe, such as archiving, trashing, or sending to a to-do list. Enjoy a fast and intuitive email experience.
- Multi-action swipe gestures
- Customizable swipe actions
- Fast loading speed
- Integration with Todoist
- Smart avatar loading
- Dark mode
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Zero Inbox is an email app designed for zeroing your inbox via enjoyable swipe actions. Unlike traditional email's swipe action can only allow one action per swipe, we provide multi-action swipe for each direction, empower you to process your email effortlessly on daily basis. For example, for swiping right, you can choose - Swipe right-down-right to push the email to Todoist - Swipe straight right to archive - Swipe right-up-right to trash We also worked hard to make the app to provide blazing fast loading speed. There are more awesome features to come in the following updates: - Customizable swipe actions - In mail swipe action (like Tinder but for email) - Multi-step swipe (one swipe can do many things like Mark read + Archive + push to Todoist) - Smart avatar (load sender's avatar from known email list or public avatar database) - Dark mode
Screenshots
Verdict
The clearest difference is monetization model: Zero Inbox at free against Polymail's free with in-app purchases. Zero Inbox also leads on iOS requirement (12.0 vs 16.0). Polymail's advantage is ratings volume (86 vs 3) and rating (3.9 vs 3.7). On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Polymail holds the better App Store score, 3.9 against 3.7. That said, the two scores are not equally well evidenced: Polymail has 86 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 60% of Polymail's written reviews are positive against 50% of Zero Inbox's.
Polymail ships an update fortnightly, Zero Inbox every 3 weeks. The most recent releases landed on October 18, 2026 and October 9, 2026 respectively.
| Parameter | Polymail | Zero Inbox |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (86 ratings) — better | 3.7 (3 ratings) |
| Positive reviews | 59.9% of reviews — better | 50.0% of reviews |
| Number of ratings | 86 — better | 3 |
| Update frequency | Fortnightly — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 40 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Polymail, Inc. | Launch Platform LLC |
Customer experience
Polymail
Zero Inbox
Bugs and requests
Polymail
Reported bugs
4 issues- Frequent app crashes and freezes
- Unread email count not syncing properly
- Deleted emails reappearing in inbox
- Issues with email attachments and formatting
Requested features
4 requests- Customizable email templates
- Advanced email organization tools (e.g. flags, categories)
- Support for more email providers (IMAP, Exchange, etc.)
- Improved mobile app stability and performance
Zero Inbox
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Polymail
No in-app purchases
Zero Inbox
No in-app purchases








