Contacts Address Book vs Ruby for Relationships
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Contacts Address Book
This app helps you nurture your personal relationships by reminding you to stay in touch and celebrate important birthdays. It offers a private and offline experience, allowing you to manage contacts and set custom reminders to keep your social circle strong.
- Birthday reminders
- Keep-in-touch reminders
- Contact management
- Offline functionality
- Customizable notifications
- Widgets
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Reminders to keep in touch and remember birthdays. Close personal relationships make life happier, healthier and longer. STORY: Hey everyone, I'm Kai - the guy behind Amicu. It’s great to catch up with someone you care about. But it's not so easy anymore. Your contacts are spread over many places. Mixed with people you don’t know. An avalanche of comments, posts, and texts cluttering everything up. It feels like a chore. No time for the joy of meeting up. And life changes. You move to new places. You change jobs. You travel and meet people, but they're abroad. You join events with cool people. But months of work follow. They stop to appear in feeds and inboxes. Instead of fun reunites relationships fade. I met people, while traveling, living abroad, and volunteering. Not all are on social media. Plus, who likes the distractions, ads, and privacy issues? So I made Amicu. It reminds you to catch up. You decide which people matter. After time reminders show up. Then it's your turn. Meet, call, or be creative. And your contacts should be no one’s business. With Amicu nothing leaves your device. That's it. No spam, privacy-invasion, customer relationships, or feeds. Simple and easy. Ideas, Questions and Feedback: Write to me at kai@amicu.app NOW WITH WIDGETS: • Birthdays today • People you're in touch with • Due contacts • Daily goal BIRTHDAYS: • See upcoming birthdays so you can prepare. • Only shows the birthdays of added contacts. Not every birthday. • Highlights people without birthdays. Never miss an important birthday. • Get notifications a week before and on the birthday. REMINDERS TO KEEP IN TOUCH: • Add reminders how often you want to keep in touch. • Go through your entire contacts fast. One tap per contact. • Contact people using your favorite apps. • Mark many people in touch at the end of the day. • Snooze reminders, when you're busy. • Customizable notifications for reminders • Daily goal to reach out to someone • Custom reminders (premium only) MANAGE CONTACTS: • Amicu Contacts are automatically updated, if the contact book changes. • See contacts without email, phone, address or avatar. • Edit contacts directly in Amicu. STATISTICS: • See the contact frequency for each person e.g. every 2 weeks • Make sure to have enough time for people (premium only) • See how social you're this week and on average (premium only) • Find the right balance of people, reminder frequency and your time PRIVACY AND USABILITY FRIENDLY: • Works completely offline. • No email, password or account. • Keep track without selling your contacts data. • No server means no data breach. • Device Contact access is optional. • Amicu makes money with an optional premium subscription and not your data. • Details at https://amicu.app/privacy LEARN: • Handpicked resources right in the app to get inspired and learn • Curated activities help you to come up with ideas Ideas, Questions and Feedback: Write to me at kai@amicu.app SUBSCRIPTION All features are free besides custom reminders, the time budget and some sorting methods. If you want to support me, Amicu has an auto-renewing premium subscription. ————— Payments are charged to the user’s Apple ID account at the confirmation of purchase. Subscription automatically renews unless it is cancelled at least 24 hours before the end of the current period. The account is charged for renewal within 24 hours before the end of the current period. You can manage and cancel subscriptions in their account settings on the App Store. Terms of Service: https://amicu.app/terms Privacy Policy: https://amicu.app/privacy Support, Questions and Feedback: Write to me at kai@amicu.app
Ruby for Relationships
This AI-powered application streamlines contact and relationship management for businesses and individuals. It automatically syncs with your email and calendar to update contact information and provides insights into team engagement with clients and partners.
- Automated contact management
- Email and calendar sync
- Relationship insights
- Private and shared notes
- Team contact leverage
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Ruby is an AI app that helps companies and individuals better manage relationships with their customers and partners. Ruby eliminates data entry by connecting to a company’s email, calendar, and other data sources to mine and maintain contact and relationship information automatically. The app allows users to quickly contact customers and partners, keep notes, manage relationships, and leverage the relationships of coworkers. Key Features: - Automate Contact Management: Sync with your company's existing email and calendar to automatically create and clean all your contact information. - Leverage Relationships with Coworkers: Track touches, take private or shared notes, and explore the relationships between your teammates and contacts. - Track Engagement Insights: Know who’s talking to whom in your organization and understand how you can better engage with your customers and partners.
Screenshots
Verdict
The clearest difference is in-app purchases: Ruby for Relationships at none against Contacts Address Book's 4. Ruby for Relationships also leads on rating (5.0 vs 4.7) and update cadence (every 9 days vs every 4 weeks). Contacts Address Book's advantage is ratings volume (51 vs 6) and iOS requirement (16.0 vs 18.0). 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 Address Book sells 3 in-app purchases, starting at $3.99 per month. Ruby for Relationships asks for nothing beyond the download.
Ruby for Relationships holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Contacts Address Book has 51 ratings behind it against 6, so its average is the more settled of the two.
Contacts Address Book ships an update every 4 weeks, Ruby for Relationships every 9 days. The most recent releases landed on September 19, 2026 and September 12, 2026 respectively.
| Parameter | Contacts Address Book | Ruby for Relationships |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (51 ratings) | 5.0 (6 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 51 — better | 6 |
| Update frequency | Every 4 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 29 MB | 35 MB |
| Age rating | 4+ | 17+ |
| Developer | Kai Oelfke | Veeva Systems Inc. |
Customer experience
Contacts Address Book
Ruby for Relationships
In-app purchases
Contacts Address Book
- Premium$3.991 Month
- Premium7 Days trial2 variants$29.991 Year
- Premium3 Days trial$29.991 Year
Ruby for Relationships
No in-app purchases
Questions
Is Contacts Address Book free?
Is Ruby for Relationships free?
Which has better reviews, Contacts Address Book or Ruby for Relationships?
Do Contacts Address Book or Ruby for Relationships have ads?
Which is updated more often, Contacts Address Book or Ruby for Relationships?
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