Comparison

Appio vs Inbox Zero

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

Head to head
About

Appio

This app delivers updates from your favorite websites and services directly to your iPhone, iPad, and Apple Watch as native notifications and live widgets. It requires no sign-up and automatically displays service logos and colors for a personalized experience.

Highlights
  • Native push notifications with service branding
  • Searchable notification history per service
  • Home Screen, Lock Screen, and Control Center widgets
  • Automatic widget refreshes
  • Customizable service colors
  • Apple Watch app with complications
Features
Read full description

Appio brings updates from the websites and services you already use to your iPhone, iPad and Apple Watch, as native notifications and live widgets. There is nothing to sign up for. Scan a QR code or tap a link from a service that uses Appio, and it is added to the app. From then on its updates reach you the moment they are sent. NOTIFICATIONS • Push notifications with the service's own name and logo • Every update kept in one searchable list per service • Open any notification for the full message, image and link WIDGETS • Home Screen widgets in every size, designed by each service • Lock Screen widgets and Control Center controls • Widgets refresh on their own, so what you see is current EVERYWHERE • Add as many services as you like, each in its own colours • iPad layout with services, notifications and detail side by side • Apple Watch app with notifications and complications No account, no email address, no password. FOR BUSINESSES Appio lets any service offer notifications and widgets to its customers in minutes, with no app development required. Learn more at https://appio.so

About

Inbox Zero

This email client offers a fast, offline-capable experience for Gmail and Outlook, featuring an AI assistant for managing your inbox. It allows for easy unsubscribing, smart inbox organization, and quick replies.

Highlights
  • AI email assistant
  • Offline access
  • Unsubscribe from senders
  • Split inbox by tabs
  • Quick swipe actions
  • Scheduled sending
  • Undo send
Features
Read full description

Inbox Zero is a fast, native email app for Gmail and Outlook, with an AI assistant built in. FAST, EVEN OFFLINE Your mail is stored on your iPhone, so your inbox opens instantly and stays usable without a connection. Changes sync in the background. SPLIT INBOX Split your inbox into tabs for the mail you care about. Each tab shows its unread count, so you know where to look first. UNSUBSCRIBE IN SECONDS See who keeps emailing you and choose Keep, Auto-archive or Unsubscribe for each sender, one by one or in bulk. Unsubscribing is free. ASK AI Chat with the Inbox Zero assistant from your inbox or any email. Ask about your mail, or tell it how your email should be handled. NEVER MISS A REPLY Get a notification when an email needs your reply, and tap straight into the conversation. TRIAGE WITHOUT FRICTION Swipe to mark done or read, and jump straight to the next email after you archive. Mark a whole list done at once, and choose your own swipe actions. WRITE AND REPLY Reply inline with attachments, photos and dictation. Drafts show up in your list and open right where you left off. Schedule messages with Send later, and undo a send for 30 seconds. ALL YOUR ACCOUNTS Connect several Gmail and Outlook accounts and read them together or one at a time. BUILT FOR IPHONE A Liquid Glass design, emails that stay readable in dark mode, and remote images loaded through a privacy proxy. Inbox Zero requires a paid subscription. New users receive a 7-day free trial. Monthly and annual plans renew automatically unless canceled at least 24 hours before the end of the current billing period. Manage or cancel your subscription in your Apple ID account settings. Privacy Policy: https://www.getinboxzero.com/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Appio3 screens
Inbox Zero4 screens

Verdict

The call

The clearest difference is in-app purchases: Appio at none against Inbox Zero's 2. Inbox Zero's advantage is update cadence (weekly vs every 3 weeks). On price, rating, ratings volume and ads 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. Inbox Zero sells 2 in-app purchases, starting at $19.99 per month. Appio asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Appio against 5.0 for Inbox Zero. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Appio ships an update every 3 weeks, Inbox Zero weekly. The most recent releases landed on November 12, 2026 and November 13, 2026 respectively.

Scorecard3 real differences · 6 level
Appio versus Inbox Zero: the parameters behind the verdict, then further details
ParameterAppioInbox Zero
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Number of ratings11
Update frequencyEvery 3 weeksWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS17.5 — better18.0
Further details — not scored
Size41 MB35 MB
Age rating4+4+
DeveloperAppio LimitedInbox Zero Inc.

Customer experience

Appio

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Inbox Zero

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Appio

No in-app purchases

2 purchases

Inbox Zero

Subscriptions2
  • Inbox Zero Starter Monthly$19.991 Month
  • Inbox Zero Starter Annual$199.991 Year

Questions

Is Appio free?
Appio is free to download, with no in-app purchases.
Is Inbox Zero free?
Inbox Zero is free to download, with in-app purchases available.
Which has better reviews, Appio or Inbox Zero?
Appio and Inbox Zero are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do Appio or Inbox Zero have ads?
Neither Appio nor Inbox Zero shows ads.
Which is updated more often, Appio or Inbox Zero?
Appio ships an update every 3 weeks, and Inbox Zero weekly. Most recently, Appio was updated on November 12, 2026 and Inbox Zero on November 13, 2026.

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