Delta Chat vs NudgeBuddy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Delta Chat
This decentralized messenger offers private, secure, and reliable instant messaging. It allows for easy setup on multiple devices and supports multiple chat profiles without requiring a phone number. Enjoy end-to-end encryption and the flexibility to run it with your own email or server.
- Decentralized instant messaging
- Private onboarding without phone number
- End-to-end encryption
- Multiple chat profiles
- Works on multiple devices
- Self-hosted option
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Delta Chat is a reliable decentralized instant messenger that is easy and fun to use for friends, family, groups and organizations. Delta Chat is developed by a dedicated FOSS contributor community that jointly releases refinements and new features several times a year, across many stores and platforms world-wide. Features at a glance: • Private. Instant on-boarding without a phone number or other private data. • Friends & Family: Only chat with people you know. Unknown users cannot message or follow you without mutual consent. • Flexible. Supports multiple chat profiles and is easy to setup on multiple devices. • Reliable. Works under bad and adversarial network conditions. • Secure. Audited End-to-End encryption safe against network and server attacks. • Sovereign. Can be run with your own e-mail address or server. • FOSS. Fully Open Source/Free Software, built on Internet Standards.
NudgeBuddy
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Welcome to NudgeBuddy, the ultimate app for managing and expanding your professional network! Whether you're a busy professional, entrepreneur, or just looking to stay organized, NudgeBuddy is designed to make name card management and networking effortless and efficient. Key Features : 1. Effortlessly Scan Name cards: Capture and digitize name cards in seconds with our advanced scanning technology. No more manual data entry—just snap a photo and let NudgeBuddy do the rest! 2. Add Contacts Easily: Manually add new contacts to your address book, ensuring all your professional connections are at your fingertips. 3. Keep Detailed Notes: Add personalized notes to each contact to remember important details, conversations, and follow-up actions. 4. Import Contacts Seamlessly: Import name cards from your phonebook, Gmail, or Outlook, consolidating your contact information in one place. 5. Export Contacts Conveniently: Share or back up your contacts in various formats including CSV, TXT, and vCard, making it easy to manage your data. 6. Explore Your Network: Discover and connect with people in your network, unlocking new opportunities and enhancing your professional relationships. 7. Set Reminders: Create reminders for follow-ups and important tasks related to your contacts to stay organized and never miss an opportunity. NudgeBuddy is more than just a name card scanner—it's a comprehensive networking tool designed to streamline your professional interactions and keep you connected. Download NudgeBuddy today and experience a new level of efficiency and organization in managing your professional relationships. Transform the way you connect and grow your network with NudgeBuddy!
Screenshots
Verdict
The clearest difference is update cadence: NudgeBuddy at every 8 days against Delta Chat's every 3 weeks. NudgeBuddy also leads on iOS requirement (12.0 vs 15.6). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Delta Chat ships an update every 3 weeks, NudgeBuddy every 8 days. The most recent releases landed on October 14, 2026 and October 2, 2026 respectively.
| Parameter | Delta Chat | NudgeBuddy |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (127 ratings) — better | — |
| Positive reviews | 63.2% of reviews | — |
| Number of ratings | 127 — better | — |
| Update frequency | Every 3 weeks | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 61 MB | 90 MB |
| Age rating | 4+ | 17+ |
| Developer | merlinux | SOLVEMEN TECHNOLOGIES SDN. BHD. |
In-app purchases
Delta Chat
No in-app purchases
NudgeBuddy
No in-app purchases









