Comparison

Loop Email vs Zero

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

Head to head
About

Loop Email

This app provides a unified inbox for teams to manage shared email accounts and collaborate on customer messages. It allows for assigning conversations, internal team chat, and automating workflows to improve efficiency and ensure no message is missed.

Highlights
  • Unified inbox management
  • Shared inbox for teams
  • Assign conversation ownership
  • Internal side chat on emails
  • Team chat channels
  • Automated workflow rules
  • Templated responses
Features
Read full description

Loop Email helps teams manage customer messages in shared email accounts such as support@, contact@, info@, orders@ and more. Efficiently and on the go. Loop is a simple yet powerful team inbox, easy to set up and use for teams handling customer messages via email. With Loop no messages get missed and your team can assign ownership, chat about customer emails, exchange files, automate workflows and manage shared inboxes with ease, all within a purpose-built iOS app. With Loop you’ll be able to: - Manage any shared email accounts - Collaborate 1-2-1 and in groups with your team - Set up automated workflows to help you manage any incoming emails - Have internal discussions with your team before replying to your customers - Organize your personal as well as team inboxes for best productivity Key features: - Unified inbox: Manage all of your email accounts from one view - Shared inbox: Manage incoming emails as a team, without having to share login details - Assign owners: Know who’s in charge of any conversation - Side chat on emails: Start a private side chat on any email thread - Team channels: Use Loop for team chat as well as email management - Shared tags: Keep your team inbox organized with labels and tags - Rules & automations: Automate workflows for your team with a powerful rules engine - SLAs: Get your response time optimized with SLA notifications - Snooze: Snooze a conversation for a period of time to keep your inbox organized - Templated responses: Set up templates for frequent queires - Collision detection: Prevent sending multiple replies by mistake - Reports & insights: Customizable reports to see how your team is doing - Works across all platforms

About

Zero

This email client is designed for legal professionals to streamline their workflow and increase billable hours. It offers features like predictive filing, inbox sorting, recipient verification, and automatic time tracking for client communications, all while adhering to strict security standards.

Highlights
  • Predictive message filing
  • Inbox sorting by importance/sender
  • Wrong recipient warnings
  • Automatic time tracking
  • On-device AI processing
  • Strict security standards
Features
Read full description

ZERØ’s email client has been engineered to help lawyers work less and bill more. With ZERØ, lawyers can: · Predictively file messages to their document management system or to their corresponding email folders. · Sort their inboxes by parameters such as importance and sender. · Receive a warning in real-time if they are about to send a message to a potential wrong recipient. · Automatically and contemporaneously capture the time spent interacting with client messages from their mobile devices. And as powerful as ZERØ is, the application takes into account the strictest security standards. Our proprietary AI processes data directly on the device—meaning that no user data is ever sent outside of the device for processing. ZERØ also always remains entirely within your law firm’s security perimeter. Using ZERØ, lawyers can be more productive and generate more revenue.

Screenshots

Loop Email4 screens
Zero4 screens

Verdict

The call

The clearest difference is rating: Zero at 5.0 against Loop Email's 4.3. Zero also leads on monetization model (free vs free with in-app purchases). Loop Email's advantage is review sentiment (52% vs 25%) and ratings volume (16 vs 3). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Zero holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Loop Email has 16 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 52% of Loop Email's written reviews are positive against 25% of Zero's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Loop Email ships an update fortnightly, Zero monthly. The most recent releases landed on September 25, 2026 and June 23, 2026 respectively.

Scorecard4 real differences · 6 level
Loop Email versus Zero: the parameters behind the verdict, then further details
ParameterLoop EmailZero
PriceFreeFree
Rating4.3 (16 ratings)5.0 (3 ratings) — better
Positive reviews51.7% of reviews — better25.0% of reviews
Number of ratings16 — better3
Update frequencyFortnightly — betterMonthly
AdsNoNo
In-app purchasesNoNo
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.6 — better17.0
Further details — not scored
Size105 MB207 MB
Age rating17+17+
DeveloperNITO d.o.o.Aderant North America, Inc.

Customer experience

Loop Email

All ratings16 ratings
Positive75.0%
Neutral12.5%
Negative12.5%
Written reviews29 reviews
Positive51.7%
Neutral10.3%
Negative37.9%

Zero

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive25.0%
Neutral0.0%
Negative75.0%

In-app purchases

None

Loop Email

No in-app purchases

None

Zero

No in-app purchases

Questions

Is Loop Email free?
Loop Email is free to download, with no in-app purchases.
Is Zero free?
Zero is free to download, with no in-app purchases.
Which has better reviews, Loop Email or Zero?
Zero is rated higher. Loop Email averages 4.3 out of 5 from 16 ratings, while Zero averages 5.0 from 3 ratings.
Do Loop Email or Zero have ads?
Neither Loop Email nor Zero shows ads.
Which is updated more often, Loop Email or Zero?
Loop Email ships an update fortnightly, and Zero monthly. Most recently, Loop Email was updated on September 25, 2026 and Zero on June 23, 2026.

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