Comparison

Only Contacts vs Concentration Clock

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

Head to head
About

Only Contacts

Organize, back up, and export your iPhone contacts with this offline utility. It offers robust editing, secure AES-256 encrypted backups, and multiple export formats like Excel and PDF. Manage duplicates and filter contacts efficiently for a cleaner address book.

Highlights
  • View, edit, delete, and create contacts
  • Create and restore VCF backups
  • AES-256 encrypted backups
  • Export to Excel, PDF, and JSON
  • Find and merge duplicate contacts
  • Filter contacts by various criteria
  • QR code and digital contact card sharing
Read full description

Tek Rehber is a clean and powerful contact manager designed to help you organize, back up and export your iPhone address book with confidence. The app does not use ads, tracking or a server connection. Your contacts stay on your device, and you decide when and how to share your backups. Key features: - View, edit, delete and create contacts - Create and restore VCF contact backups - Create AES-256 encrypted backups - Export to Excel, PDF and JSON - Find and merge duplicate contacts - Filter by name, phone, email, photo, birthday, address, company, job title and website - Favorites, groups and smart contact lists - QR code and digital contact card sharing - Recently deleted contacts and recovery flows - Face ID lock, theme options and in-app language selection Tek Rehber is a modern offline contact utility for anyone who wants a safer, cleaner and more private address book.

About

Concentration Clock

Features
Read full description

Concentration Clock: Your Personalized Focus Companion Need a digital nudge to stay on task? Concentration Clock is the perfect app to help you maintain focus and boost productivity. Whether you're diving deep into a project, studying for exams, or simply trying to reduce screen time, our app provides the tools and motivation you need to succeed. Key Features: Pomodoro Technique: Easily implement the popular Pomodoro Technique with built-in timers for focused work and short breaks. Screen Time Tracking: Monitor your screen time and set limits to help you achieve a healthier digital-life balance. Minimalist Interface: Our clean and intuitive design ensures that you can stay focused on your tasks without distractions. How it works: Set Your Focus: Choose the duration of your focus session and select your preferred background or theme. Start the Timer: Begin your focused work. Concentration Clock will track your time and provide visual cues to help you stay on track. Take a Break: When the timer goes off, take a short break to rest and recharge. Repeat: Continue this cycle until you've completed your tasks. Benefits: Improved Focus: Stay focused on your tasks and minimize distractions. Increased Productivity: Get more done in less time by optimizing your workflow. Reduced Stress: Take regular breaks to prevent burnout and reduce stress. Better Time Management: Develop better time management skills and achieve a healthier work-life balance. Download Concentration Clock today and start taking control of your time!

Screenshots

Only Contacts4 screens
Concentration Clock4 screens

Verdict

The call

The clearest difference is price: Concentration Clock at Free against Only Contacts's $5.99. Concentration Clock also leads on iOS requirement (12.0 vs 16.0). On ads, in-app purchases 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

Concentration Clock is free to download; Only Contacts costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences · 7 level
Only Contacts versus Concentration Clock: the parameters behind the verdict, then further details
ParameterOnly ContactsConcentration Clock
Price$5.99Free — better
Rating1.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 2 months—
AdsYesYes
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPodiPhone, iPod
Requires iOS16.012.0 — better
Further details — not scored
Size4 MB39 MB
Age rating4+4+
DeveloperEnsar KilicAis Business Mexico S.A. de C.V.

In-app purchases

None

Only Contacts

No in-app purchases

None

Concentration Clock

No in-app purchases

Questions

Is Only Contacts free?
Only Contacts costs $5.99, with no in-app purchases.
Is Concentration Clock free?
Concentration Clock is free to download, with no in-app purchases.
Do Only Contacts or Concentration Clock have ads?
Both Only Contacts and Concentration Clock show ads.

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