Comparison

EteSync vs addy.io

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

Head to head
About

EteSync

Securely sync your contacts, calendars, and tasks across devices. This app provides a privacy-respecting synchronization solution with a full history of your data, allowing for restoration and access to past versions.

Highlights
  • Secure data synchronization
  • Contacts, calendars, and tasks sync
  • Privacy-respecting
  • Open-source client and server
  • Full data history and restore
  • Easy to use setup
Features
Read full description

EteSync is a secure and privacy respecting sync for contacts, calendars and tasks. With this application you can sync your EteSync data with your iOS device! In order to use this application you need to have an EteSync account, either on an existing server or your own (it's free and open source). Easy to Use =========== EteSync is very easy to use, you just put in your credentials and the app is ready to use. Secure & Open ============ EteSync is secure and respects your privacy. Don't believe us? You shouldn't, just verify yourself, both the client and server are open source. Full History ========= A full history of your data is saved in a change journal which means your data is never lost, even if deleted, and you can always restore, revert and access past versions of your data.

About

addy.io

Manage your email aliases and recipients on the go with this sleek mobile application. Create new aliases, forward emails, and receive notifications for delivery issues. Securely access your account with biometric authentication.

Highlights
  • Create and manage email aliases
  • Forward emails from anywhere
  • Biometric app lock
  • Notifications for delivery issues
  • Alias management via Shortcuts and Siri
  • Widgets for quick access
  • WatchOS app for on-the-go management
Features
Read full description

Easily create and manage your addy.io aliases, recipients and more from your phone, tablet or wearable with this gorgeous addy.io app for iOS and iPadOS. Requirements: addy.io instance running v1.7.3 or higher (current version of the addy.io app has been tested with v1.7.3) Characteristics: - Connect to a hosted addy.io instance or your own self-hosted instance - A unique, gorgeous and sleek design, based on the Human Interface Guidelines - Support for Deep Link to easily deactivate aliases from the email banner - Lock the app using Biometrics - App exclusive features - Watching aliases for new emails - Send emails from aliases from anywhere by selecting and sharing text or an email address - Get notified on failed deliveries, domain errors and expiring subscriptions - Create aliases using Shortcuts and Siri - Manage your addy.io subscription - Enable error logging to *locally* store exceptions for easy troubleshooting - Widgets! - Manage and create aliases on the go with the WatchOS app, including support for Siri Security: - Keychain API, your API key and other addy.io related settings are securely stored on your device using the Keychain API - I am forgoing the convenient third-party collection SDK and various stats just so you can use it with confidence. Manage (add, edit, delete): - Aliases - Recipients - Domains - Usernames - Rules - Blocklist - Labels - Failed deliveries What is addy.io: addy.io is an open source email forwarding service designed to protect an Internet user's email addresses from spam and other unwanted emails. Using the addy.io app managing your aliases has become easier than ever! addy.io Terms of Service: https://addy.io/terms?ref=appstore addy.io Privacy Policy: https://addy.io/privacy?ref=appstore

Screenshots

EteSync3 screens
addy.io4 screens

Verdict

The call

The clearest difference is review sentiment: addy.io at 81% against EteSync's 20%. addy.io also leads on rating (4.7 vs 3.0) and ratings volume (70 vs 20). EteSync's advantage is in-app purchases (none vs 3) and iOS requirement (10.0 vs 17.0). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. addy.io sells 3 in-app purchases, starting at $3.99 per month. EteSync asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

addy.io holds the better App Store score, 4.7 against 3.0. Both are backed by a comparable volume of ratings — 20 and 70 respectively. Written reviews point the same way: 20% of EteSync's written reviews are positive against 81% of addy.io's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 12, 2026 and October 11, 2026 respectively.

Scorecard6 real differences · 4 level
EteSync versus addy.io: the parameters behind the verdict, then further details
ParameterEteSyncaddy.io
PriceFreeFree
Rating3.0 (20 ratings)4.7 (70 ratings) — better
Positive reviews20.0% of reviews81.0% of reviews — better
Number of ratings2070 — better
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS10.0 — better17.0
Further details — not scored
Size45 MB56 MB
Age rating4+4+
DeveloperEteSync Ltdaddy.io

Customer experience

EteSync

All ratings20 ratings
Positive45.0%
Neutral10.0%
Negative45.0%
Written reviews15 reviews
Positive20.0%
Neutral13.3%
Negative66.7%

addy.io

All ratings70 ratings
Positive91.4%
Neutral4.3%
Negative4.3%
Written reviews21 reviews
Positive81.0%
Neutral9.5%
Negative9.5%

In-app purchases

None

EteSync

No in-app purchases

3 purchases

addy.io

Subscriptions3
  • Pro Plan (1 Month)$3.991 Month
  • Lite Plan (1 Year)$13.491 Year
  • Pro Plan (1 Year)$39.991 Year

Questions

Is EteSync free?
EteSync is free to download, with no in-app purchases.
Is addy.io free?
addy.io is free to download, with in-app purchases available.
Which has better reviews, EteSync or addy.io?
addy.io is rated higher. EteSync averages 3.0 out of 5 from 20 ratings, while addy.io averages 4.7 from 70 ratings.
Do EteSync or addy.io have ads?
Neither EteSync nor addy.io shows ads.
Which is updated more often, EteSync or addy.io?
EteSync ships an update every 3 weeks, and addy.io every 3 weeks. Most recently, EteSync was updated on October 12, 2026 and addy.io on October 11, 2026.

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