KeepCalling International is a cost-effective app designed to simplify international calls and SMS. Whether connecting with family abroad or managing overseas business contacts, this app eliminates exorbitant telecom charges with competitive per-minute rates, VoIP functionality, and an innovative offline calling feature. Its user-friendly interface and reliability make it a top choice for frequent global communicators.
Key Features and Highlights
- VoIP and Offline Calling: Use WiFi/data for high-quality voice calls or switch to local access numbers via KeepCalling International when offline.
- Global Coverage: Call 200+ countries, including Mexico, India, Cuba, and Nigeria, at lower rates than traditional carriers.
- No Balance Expiry: Funds never expire, ideal for sporadic international communication needs.
- Direct Contact Integration: Sync your device’s contacts (in international format) to KeepCalling International for seamless dialing.
- Auto-Recharge Options: Ensure uninterrupted service with scheduled credit top-ups.

Advantages
- Budget-Friendly: Rates start as low as $0.01/min, with transparent billing and no hidden fees.
- Flexible Usage: Combine WiFi, cellular data, or offline local numbers to stay connected anywhere.
- 24/7 Support: KeepCalling International offers round-the-clock assistance for technical or billing issues.
- Multi-Device Compatibility: Use one account across Android tablets, smartphones, or landlines.

Disadvantages
- Limited Free Trial: New users must purchase a minimum $2 credit upfront.
- Offline Setup Required: Configuring local access numbers can be time-sensitive.
- SMS Restrictions: KeepCalling International supports texting but lacks multimedia messaging.
- Data Consumption: VoIP calls use ~1MB/minute, which may drain cellular data allowances.

Tips for Optimal Use
- Pre-Save Contacts: Ensure all numbers include country codes (e.g., +1 for the U.S.) to leverage KeepCalling International’s Speed Dial.
- Monitor Rates: Check the app’s rate calculator before calling lesser-used destinations.
- Use WiFi for VoIP: Minimize data costs by prioritizing WiFi for longer calls.
- Backup Access Numbers: Save local dial-in codes under “Favorites” for quick offline access.

More Similar Apps
1. Rebtel: Offers subscription-based international plans.
2. Ding: Focuses on mobile top-ups alongside calling services.
3. Skype: Ideal for video calls but lacks offline functionality.
4. Vonage: Business-oriented with higher-tier pricing.
Conclusion and Personal Opinion
KeepCalling International stands out for its balance of affordability and versatility, particularly for users needing frequent offline access. While the lack of a free trial and occasional setup complexity might deter casual users, its reliability and customer support make it a strong contender in global communication apps. For expats, travelers, or remote teams, this app is a practical long-term solution.