Contact Book Pro is a specialized contact management tool for iOS that allows users to maintain a private, isolated database separate from the system address book.
The App DNA
What makes this app unique?
Users hire this app to enforce a hard boundary between personal and professional contacts, preventing system-wide address book clutter and accidental data sharing.
For Users seeking a simplified, isolated contact management tool to separate personal entries from system-wide address books.
What does it look like?
Key features
Maintains a contact database separate from the system-level address book
Aggregates social media profiles into direct-access links within contact profiles
Organizes contacts into custom categories for filtered viewing
How much does it cost?
The app is currently distributed as a free utility with no visible monetization gates or subscription tiers.
Velocity
Dormant developmentopaqueShow more...
The app has not received a release in over 10 years, indicating it is no longer under active development. The single available version from 2016 contains no feature updates, confirming a complete lack of development momentum. The project is classified as a zombie app due to the extreme duration of inactivity.
Who built it?
Sudip Bag
5 apps tracked · Business
Personal Budget-Pro
TasteLoop
DateBook -Journal | Memoir
Bill Reminder - Pocket EditionUser Sentiment
What do users think recently?
How are ratings & reviews evolving?
Not enough recent reviews to extract reliable themes yet.
Read the full review analysisCompetition
Competitive landscape for Contact Book Pro
How's the Business market?
Contact Book Pro maintains a niche position in the Business category as a legacy utility, with no significant updates since 2016. The lack of monetization and low rating count (4 total) signal that the app serves as a static tool rather than a competitive market participant.
Read the market outlookThe rivals identified
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Access the full report for freeThe Analyst's Read
Key takeaways for Contact Book Pro
Where is it heading?
Users report: The market for standalone contact management is consolidating around native OS features and high-utility business tools. Contact Book Pro remains exposed to obsolescence due to its static feature set and lack of cloud-sync, so the PM must decide between a pivot to cloud-based utility or a planned sunset.
- The lack of updates since 2016 signals a maintenance-mode posture, which will lead to gradual user attrition as iOS native features improve.
The SWOT
- Isolated contact database provides a clear privacy-focused value proposition for users avoiding system-wide address book clutter.
- Implement cloud-sync to address the primary user frustration regarding data portability and multi-device access.
Next best moves
Ship cloud-sync because the lack of multi-device access is a critical barrier to modern utility → increase user retention.
The counter-intuitive read
The app's greatest weakness, its lack of integration with the system address book…
Read the full takeFeature gaps
Cloud-sync (available in Locus Mobile but missing here) +2
Since the last report: The product strategy shifted focus toward cloud-sync as the primary development priority, while the competitive landscape was updated to reflect specialized business utilities rather than CRM-lite rivals.
Bottom line
Contact Book Pro provides a useful privacy silo, but the lack of cloud-sync and active development makes it a legacy tool, so the PM should prioritize data portability to prevent total user attrition to native OS features.
Unlock 2 critical frictions, 1 market threat and the analyst’s take.
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