Contacts Sync vs Easy Caller ID
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Contacts Sync
Effortlessly synchronize your contacts across Google, Outlook, and iPhone. This reliable app ensures your contact information is up-to-date everywhere with 2-way syncing and support for all contact fields and photos.
- 2-way contact synchronization
- Sync Google, Outlook, and iPhone accounts
- Syncs all contact fields and photos
- Automatic background syncing
- Group and custom label synchronization
- Duplicate contact elimination
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••• SYNC GOOGLE, ICLOUD, & OUTLOOK! ••• #1 SYNC APP FOR 15+ YEARS! ••• TRUSTED BY 10,000,000+ USERS! With Contacts Sync, you can quickly & easily sync your Google or Outlook contacts with iPhone, giving you access to your contacts wherever you go. This app distinguishes itself with its reliability, ease of use, speed, and with a true "2-way sync" that merges changes made to either account. This is the #1 app for syncing contacts both in terms of downloads & reviews. Also of significance, this app syncs your Google labels or Outlook categories with your iPhone lists. For instance, you may have organized your Google contacts into groups such as "friends," "family," and "coworkers." After a sync, your iPhone and Google groups will match. With your groups configured on iPhone, you can easily send group emails or group messages. SYNC THE FOLLOWING ACCOUNTS: • Sync Google with iPhone • Sync Outlook with iPhone • Sync 2 Google accounts SYNC ANY IPHONE ACCOUNT: • Choose to sync all of your iPhone contacts, or choose to sync contacts from a specific iPhone account, such as iCloud, a local iPhone address book, Outlook, or a CardDAV account SYNC TYPES: • Choose from one of the following sync types: 2-Way Sync, 1-Way Sync, and Manual Sync • Choose a 2-Way Sync to sync changes in both directions • Choose a 1-Way Sync to transfer changes in one direction only • Choose a Manual Sync to sync specific contacts only SYNCS ALL FIELDS: • Syncs all fields including names, phonetic names, nicknames, email addresses, phone numbers, postal addresses, company names, job titles, departments, birthdays, anniversaries, events, notes, web page addresses, relationships, instant messaging accounts, & social profiles • Syncs contact photos • Syncs custom labels & custom fields INITIAL SYNC: • During the initial sync, the contents of matching contacts will be merged CONFIRM CHANGES BEFORE SYNCING: • Review each change before the sync actually begins AUTOMATIC SYNC: • Automatically syncs contacts in the background 24/7 APPLY FILTERS INCLUDING GROUP FILTER: • Apply the group filter, new contact filter, and more! DUPLICATE CONTACTS: • Eliminate duplicate contacts from both iPhone and Google SUBSCRIPTIONS: • Contacts Sync offers a "Premium" subscription which unlocks all of the premium features in the app, including the ability to sync an unlimited number of contacts and to auto sync in the background. • Without an upgrade, the app will sync no more than 40 contacts • The "Premium" subscription is priced at $1.99 USD per week, $2.99 USD per month, or $9.99 USD per year • Payment will be charged to iTunes Account at confirmation of purchase • Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period • Account will be charged for renewal within 24-hours prior to the end of the current period • Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable • Terms of use: https://playaapps.zendesk.com/hc/articles/360004197333 • Privacy Policy: https://playaapps.zendesk.com/hc/articles/226767688
Easy Caller ID
Identify unknown callers and block spam calls with real-time information displayed on your native call screen. Instantly look up any phone number to find caller details and enrich your address book. Your privacy is protected, and all features are completely free.
- Instant caller identification
- Real-time call screen display
- Powerful spam call blocking
- System-level spam filtering
- Smart phone number lookup
- Contact enrichment
- Privacy-focused design
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Identify unknown callers, block spam calls, and search any phone number for free. Easy Caller ID helps you see who’s calling, stop robocalls, and look up unknown numbers instantly - all without subscriptions or hidden fees. Instant Caller ID Know who is calling before you answer. Easy Caller ID shows caller information directly on your iPhone’s native call screen so you can identify unknown callers in real time. Look up any phone number and discover details like: • Caller name • Job title • Company information • Spam status Powerful Spam Blocker Stop unwanted calls before they reach you. Our system-level spam blocker automatically blocks: • Robocalls • Telemarketers • Scammers • Fraud calls Your phone stays quiet while spam calls are filtered in the background. You can also block any number with one tap and build your own personal block list. Smart Phone Number Lookup Missed a call from an unknown number? Use the instant number lookup to identify who called you. Search both local and international phone numbers and see detailed caller information within seconds. Contact Enrichment Keep your address book accurate and complete. Easy Caller ID can automatically update your contacts with: • Names • Organization names • Job titles Your contacts stay clean, enriched, and up to date without manual editing. Privacy First Your privacy matters. Unlike many caller ID apps, Easy Caller ID does not make your phone number publicly searchable. Your personal information stays private and under your control. 100% Free Caller ID & Spam Blocking Most caller ID apps charge monthly subscriptions for basic features like spam blocking and unlimited phone number searches. With Easy Caller ID, everything is free: • Caller ID • Spam blocking • Phone number lookup • Contact enrichment No subscriptions. No premium tiers. No paywalls. Just a free caller ID and spam blocker that works.
Screenshots
Verdict
The clearest difference is in-app purchases: Easy Caller ID at none against Contacts Sync's 7. Contacts Sync's advantage is update cadence (every 5 days vs every 2 months) and rating (4.6 vs 4.3). On price, 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
Both are free to download. Contacts Sync sells 7 in-app purchases, starting at $1.99 per 7 days. Easy Caller ID asks for nothing beyond the download.
Contacts Sync holds the better App Store score, 4.6 against 4.3. That said, the two scores are not equally well evidenced: Contacts Sync has 15K ratings behind it against 2.7K, so its average is the more settled of the two. Written reviews point the same way: 80% of Contacts Sync's written reviews are positive against 69% of Easy Caller ID's.
Contacts Sync ships an update every 5 days, Easy Caller ID every 2 months. The most recent releases landed on November 10, 2026 and November 7, 2026 respectively.
| Parameter | Contacts Sync | Easy Caller ID |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (15K ratings) — better | 4.3 (2.7K ratings) |
| Positive reviews | 80.0% of reviews — better | 69.4% of reviews |
| Number of ratings | 15K — better | 2.7K |
| Update frequency | Every 5 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 40 MB | 128 MB |
| Age rating | 4+ | 12+ |
| Developer | Playa Apps | LSM Apps |
Customer experience
Contacts Sync
Easy Caller ID
User reviews
Contacts Sync
From 15K App Store ratingsWhat we love
- 👍 Easy to use
- 🚀 Quick and efficient
- 💡 Useful for syncing contacts across devices
- 🔒 Reliable and secure
- 🙌 Great customer support
Room to improve
- 🐛 Occasional sync issues
- 💰 Paid subscription required for more than 40 contacts
- 🔄 Confusion around syncing and merging contacts
- 🤔 Inconsistent contact formatting after sync
Easy Caller ID
From 2.7K App Store ratingsWhat we love
- 👍 Easy to use
- 🚀 Simple and efficient
- 💡 Helpful for managing groups
- 👍 Intuitive contact management
- 👍 Useful for cleaning up contacts
Room to improve
- 🐛 Crashes and freezes
- 🐛 Unreliable sync and backup
- 💰 Expensive subscription model
- 🐛 Buggy updates and loss of functionality
- 🐛 Unresponsive customer support
Bugs and requests
Contacts Sync
Reported bugs
2 issues- Deleted contacts reappearing after sync
- Sync corrupting or deleting existing contact data
Requested features
4 requests- Ability to merge duplicate contacts
- Sync support for Outlook contacts
- Automatic sync between multiple Google accounts
- Undo/rollback option for sync operations
Easy Caller ID
Reported bugs
4 issues- Contacts disappearing after updates
- Inability to restore paid subscription features
- Repeated prompts to update even on latest version
- Sync issues causing duplicate and missing contacts
Requested features
5 requests- Ability to sort contacts by first name
- Integration with more social networks for contact photos
- More customization options for contact groups
- Improved search and filtering capabilities
- Easier way to move contacts between accounts
In-app purchases
Contacts Sync
- Premium (1 Week)$1.997 Days
- Premium (1 Month)$2.991 Month
- Premium (1 Year)$9.991 Year
- Automatic Contact SyncingFree
- Make Contribution$4.99
- Make Larger Contribution$9.99
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- Premium (Lifetime Access)$11.99
Easy Caller ID
No in-app purchases
Questions
Is Contacts Sync free?
Is Easy Caller ID free?
Which has better reviews, Contacts Sync or Easy Caller ID?
Do Contacts Sync or Easy Caller ID have ads?
Which is updated more often, Contacts Sync or Easy Caller ID?
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