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EteSync vs Hiya

Professional comparison and analysis to help you choose the right software solution for your needs.

EteSync icon
EteSync
Hiya icon
Hiya

EteSync vs Hiya: The Verdict

⚡ Summary:

EteSync: EteSync is an end-to-end encrypted and privacy-focused calendar and contacts manager. It allows users to keep their data private while syncing across devices. EteSync uses client-side encryption so only you have the decryption keys.

Hiya: Hiya is a phone number lookup and call blocking app for iOS and Android. It identifies unknown callers, blocks robocalls and spam calls, and gives you control over who contacts you.

Both tools serve their respective audiences. Compare the features, pricing, and user ratings above to determine which best fits your needs.

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature EteSync Hiya
Sugggest Score — —
Category Online Services Security & Privacy
Pricing Open Source Subscription

Product Overview

EteSync
EteSync

Description: EteSync is an end-to-end encrypted and privacy-focused calendar and contacts manager. It allows users to keep their data private while syncing across devices. EteSync uses client-side encryption so only you have the decryption keys.

Type: software

Pricing: Open Source

Hiya
Hiya

Description: Hiya is a phone number lookup and call blocking app for iOS and Android. It identifies unknown callers, blocks robocalls and spam calls, and gives you control over who contacts you.

Type: software

Pricing: Subscription

Key Features Comparison

EteSync
EteSync Features
  • End-to-end encrypted sync
  • Open source client apps
  • Support for calendars, contacts, tasks
  • Cross-platform - Android, iOS, Linux, macOS, Windows
  • Self-hostable server option
Hiya
Hiya Features
  • Caller ID - Identifies unknown callers
  • Spam call blocking - Blocks robocalls and spam calls
  • Reverse phone lookup - Lets you search for information on any phone number
  • Call blocking - Allows you to block specific numbers
  • Contact management - Saves known contacts to help identify callers

Pros & Cons Analysis

EteSync
EteSync

Pros

  • Strong encryption protects privacy
  • Multiple client apps to choose from
  • Can be self-hosted for more control

Cons

  • Limited adoption so far
  • Self-hosting requires technical expertise
  • No offline access - requires internet connection
Hiya
Hiya

Pros

  • Effective spam blocking
  • Easy to use interface
  • Helps avoid unwanted calls
  • Provides caller information
  • Works on both iOS and Android

Cons

  • Occasional false positives in spam detection
  • Limited reverse lookup database
  • Must pay to block more than 10 contacts
  • Drains battery life

Pricing Comparison

EteSync
EteSync
  • Open Source
Hiya
Hiya
  • Subscription

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Learn More About Each Product

EteSync
EteSync
Reviews, pricing & alternatives →
Hiya
Hiya
Reviews, pricing & alternatives →

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