Report updated May 4, 2026

Contacts Sync + is a well-regarded productivity app that is completely free. With a 4.3/5 rating from 1.9M reviews, it maintains solid user satisfaction. Users particularly appreciate cross-platform contact synchronization between google and apple accounts provides a reliable daily utility, though broken search functionality in the latest update prevents users from locating saved contacts by name remains a common concern.

What is Contacts Sync +?

Contacts Sync + is a cross-platform utility for synchronizing Google and Mac address books on iOS and Android.

Users hire this app to bridge data silos between Apple and Google ecosystems, ensuring consistent contact information without manual entry.

Current Momentum

v8.5 · 2w ago

Maintenance
  • Optimized for macOS Tahoe
  • Added Outlook contact sync support

Active Nemesis

My Contacts Backup Pro

My Contacts Backup Pro

By GLOBILE BILISIM BILGISAYAR HIZMETLERI ILETISIM DANISMANLIK SANAYI TICARET LIMITED SIRKETI

Other Rivals

Contacts Sync-for Google Gmail
Sync.me - Caller ID & Contacts
Google One
Microsoft Outlook
Cardhop - Contacts
Notion: Notes, Tasks, AI

7-Day Rank Pulse 🇺🇸

Productivity

No ranking data

Rating Pulse 🇺🇸

Recent User Mood

What makes this app unique?

What Does It Look Like?

What Are The Key Features?

2-Way SyncDifferentiator

Merges contact changes between Google and Mac address books in both directions

Automatic Background SyncStandard

Performs contact synchronization in the background 24/7 without manual intervention

How much does it cost?

Free
  • Free

The app is currently listed as free on both iOS and Android platforms, with no explicit subscription or IAP tiers mentioned.

Who Built It?

What do users think recently?

High confidence · Latest 100 of 101 total reviews analyzed · Based on 101 reviews. Signal may be noisy.

What is the recent mood?

Excited

Recent user voice shows a excited sentiment. Users appreciate cross-platform contact synchronization between google and apple accounts provides a reliable daily utility, but report broken search functionality in the latest update prevents users from locating saved contacts by name.

What Users Love

Cross-platform contact synchronization between Google and Apple accounts provides a reliable daily utility

What Frustrates Users

Broken search functionality in the latest update prevents users from locating saved contacts by name

What Users Want

Granular field selection controls to prevent syncing sensitive notes or unwanted data between accounts

View the full user-sentiment analysis

Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.

Go deeper

What is the competitive landscape for Contacts Sync +?

How's The Productivity Market?

Market outlook for this category

Available very soon

The rivals identified

Nemeses(1)

My Contacts Backup Pro icon

GLOBILE BILISIM BILGISAYAR HIZMETLERI ILETISIM DANISMANLIK SANAYI TICARET LIMITED SIRKETI

4.3(1.9M)

This app mirrors the target's core value proposition of simple contact backup and synchronization at a massive scale.

Differentiators

  • Focuses exclusively on backup utility rather than the target's two-way sync and merge functionality.
  • Maintains a singular, focused feature set that avoids the complexity of multi-account synchronization.
  • Leverages a long-standing market presence to maintain high user trust for data-sensitive backup tasks.

Head to head

The target app must emphasize its superior two-way sync capabilities to differentiate from this simpler, backup-focused rival.

Contenders(2)

Sync.me - Caller ID & Contacts icon

Sync.ME LTD

4.4(22.1K)

Expands the contact management niche by integrating social caller ID and spam detection features.

Differentiators

  • Integrates social media profile photos and caller ID data to enrich standard contact entries automatically.
  • Operates as a comprehensive communication utility rather than a simple synchronization tool.

Directly competes on the specific niche of Google-to-device contact synchronization with similar scale.

Differentiators

  • Provides a more granular control over sync settings for specific Google labels and contact groups.
  • Maintains a higher release frequency, allowing for faster adaptation to OS-level contact API changes.

Same space(3)

Cardhop - Contacts icon
Cardhop - Contactsmoat: medium

Flexibits Inc.

4.3(1.9M)

Targets power users with a sophisticated, natural-language-based contact management interface.

Differentiators

  • Utilizes natural language processing to allow users to add or edit contacts through simple text commands.
  • Focuses on a premium, design-forward UX that prioritizes speed and efficiency for power users.
Microsoft Outlook icon

Microsoft Corporation

4.4(10.5M)

Provides robust enterprise-grade contact management and sync as part of a broader productivity suite.

Differentiators

  • Offers deep integration with Exchange and Office 365, making it the standard for professional contact management.
  • Provides advanced contact filtering and organizational tools that exceed the capabilities of simple sync apps.
Google One icon
Google Onemoat: high

Google

4.1(867.9K)

A platform-level competitor that offers native backup solutions for the entire Google ecosystem.

Differentiators

  • Bundles contact backup with cloud storage and device management, creating a high-friction ecosystem lock-in.
  • Leverages native OS integration to perform background backups without requiring third-party app permissions.

New entrants(1)

Notion: Notes, Tasks, AI icon

Notion Labs, Incorporated

4.6(355K)

Rapidly evolving productivity platform that is increasingly encroaching on contact and relationship management.

Differentiators

  • Uses AI-driven database structures to allow users to build custom relationship management systems beyond simple sync.
  • Provides flexible, block-based data entry that allows for richer contact metadata than traditional sync apps.

Compare Contacts Sync + against every rival

All rivals in one side-by-side table — identity, store metrics, ratings & sentiment, and strategic intel — plus a head-to-head page for each.

Go deeper

The outtake for Contacts Sync +

Strengths to defend, gaps to attack

Core Strengths

  • 2-way sync mechanism establishes high switching costs
  • Automated background sync reduces user friction
  • Group-matching logic reinforces category authority

Critical Frictions

  • Broken search functionality in the latest update
  • Confusing licensing prompts post-purchase
  • Lack of clear monetization tiers

Growth Levers

  • Education partnerships as B2B distribution
  • Granular field selection controls

Market Threats

  • Platform-level native backup solutions
  • Broken search functionality eroding user trust

What are the next best moves?

highInvest

Ship search fix in the next minor release

Search failure is the top-reported utility blocker in recent reviews → restore core functionality and prevent churn.

Trade-off: Push the UI animation polish sprint to Q3 — search utility has higher retention impact.

mediumPivot

Audit licensing prompts

Users report confusion despite free-tier status → reduce negative sentiment and support overhead.

Trade-off: Pause the new language localization project — licensing clarity has higher immediate sentiment impact.

A counter-intuitive read

The app's lack of monetization is its primary weakness, yet it is also its primary retention mechanism against platform-native tools that increasingly gate data behind cloud storage subscriptions.

Feature Gaps vs Competitors

  • Natural-language contact management (available in Cardhop but absent here)
  • Social caller ID integration (available in Sync.me but absent here)

Key Takeaways

Contacts Sync + holds its category lead through reliable sync mechanics but bleeds user trust due to recent search regressions, so revenue growth hinges on fixing utility bugs before introducing monetization.

Where Is It Heading?

Mixed Signals

The productivity utility market is consolidating around platform-native solutions, leaving third-party sync tools exposed to OS-level API changes. Contacts Sync + must prioritize core utility stability to maintain its user base against native alternatives.

Broken search functionality in the latest update prevents users from locating contacts, which directly erodes the app's core value proposition.

Recent updates focused on OS-level compatibility and Outlook support, indicating active maintenance rather than aggressive feature expansion.

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with editorial review, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Contacts Sync +, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

What's new

The app has entered a maintenance phase characterized by critical search regressions and increased vulnerability to platform-native competition.

added

Search functionality regression

shifted

Maintenance lifecycle transition

declined

Licensing friction

improved

2-Way Sync repositioning

Cite this report

Marlvel.ai. “Contacts Sync + Intelligence Report.” Updated May 4, 2026. https://marlvel.ai/apps/contacts-sync

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