KeepCalling International vs Coltie App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KeepCalling International
Make affordable international calls, send mobile recharges, and get travel eSIMs with this app. Enjoy high-quality VoIP calls, instant top-ups to over 160 countries, and seamless data plans for your trips abroad. Stay connected globally without expensive roaming fees.
- Low-rate international calls
- Mobile recharge for 160+ countries
- Travel eSIM data plans
- High-quality VoIP calls
- Integrated contacts
- Speed dial
- Set Caller ID
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Save today on International Calls, Mobile Recharges & Travel eSIMs with the KeepCalling App! Stay connected globally for less. Whether you need to make high-quality international calls at low rates, recharge a phone of a loved one back home, or get instant data for your next trip, KeepCalling has you covered in one easy-to-use iOS app. Forget about calling cards and roaming fees. Easily make cheap calls or send top-ups to Mexico, India, China, Colombia, Cuba, Thailand, Vietnam, Saudi Arabia, Nigeria, and many more. With KeepCalling it’s easy to call home. Premium voice calls: • High Quality: Enjoy crystal-clear VoIP calls at local rates • Pay per minute with no hidden fees • Use with WiFi or Mobile Data Download for free and get: • Cheap rates for international phone calls • No Hidden or Extra Fees • $5 Minimum Order to get started • Minute Rounding • 100% Call Quality • Access from all iOS smartphones and tablets • Direct access to your phone contacts • 24/7 Outstanding Customer Service Very easy to use: 1. Create an account or login. 2. Buy Voice Credit, Mobile Recharge, or Travel eSIM. 3. Start calling and stay connected with the world! Extra options: • Instantly check the rate/min for the destination you want to call • Check out the answers to frequently asked questions in our Help Center • Set My Caller ID - Let your friends and family know it’s you calling by setting your Caller ID directly in the app. • Rate Our App - We value your feedback. Let us know how we’re doing! Features: • Integrated Contacts: Use your existing iOS contact list for 1-tap calls. • Easy Onboarding: Create a new account directly from the app in seconds. • Speed Dial: Call your favorite international numbers faster than ever. TIP: We recommend turning off "International Calling" with your current mobile provider to avoid accidental high charges on their network. Always use the KeepCalling app for the best international rates! Backup calling method: Use our Toll Free or Local Access numbers from any mobile or landline. Mobile Recharge Help your family stay connected globally. Send mobile recharges to over 160 countries instantly. Our secure platform ensures your mobile credit reaches those who matter, fast and without hassle. Travel eSIM Travel smart with our eSIM data plans. Stay online abroad without the headache of expensive carrier roaming fees. Activate your Travel eSIM in seconds and enjoy high-speed internet. Questions or feedback? We value your opinion! Reach out to us at customerservice@keepcalling.com or check our Help Center directly in the app. Frequently asked questions 1. Can I use my phone contacts? Yes, but you have to make sure that all phone numbers are saved in international format: country code + phone number. 2. How much data does the app use for an online call? On average, the app uses approximately 1MB/min for making a voice call. In order to benefit from the highest quality available, we advise you to use the application with a WiFi network. Any costs resulting from using the application with mobile data networks when you call internationally are not covered by us. 3. Which countries & operators support mobile top-ups? You can send top-ups to 160+ countries and mobile operators around the world. Simply browse through the list of available destinations; once you select your desired country, the available operators will be displayed. 4. What is a travel eSIM and how does it work? A travel eSIM is a digital SIM card that allows you to access mobile data in other countries without needing a physical SIM. Instead of inserting a plastic card, you download a profile to your phone. It works by connecting your device to local mobile networks in your destination country, providing you with affordable data at more cost-effective rates than traditional international roaming.
Coltie App
This social networking app facilitates connections within academia by intelligently matching prospective students with graduate advisors. Users can create profiles featuring video statements and research descriptions, fostering a dynamic academic community.
- Intelligent student-advisor matching
- Video personal statements
- Faculty research and advising videos
- Academic topic video sharing
- Profile enhancement with video
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Coltie is a social network and match-making app that helps you make the right connections in academia. Coltie intelligently suggests matches between prospective students and graduate advisors to make searching and recruiting simple. Student profiles feature a video personal statement. Faculty can enhance their profiles with videos that describe their research and advising styles. All academic users can create and view videos about topics relevant to their interests, from campus life to recent research advancements. We are continuously adding new features to build connections at all stages of the journey.
Screenshots
Verdict
The clearest difference is in-app purchases: Coltie App at none against KeepCalling International's 15. Coltie App also leads on ads (none vs shown) and rating (5.0 vs 4.6). KeepCalling International's advantage is ratings volume (19K vs 6). On price, update cadence, device support and iOS requirement 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. KeepCalling International sells 14 one-off in-app purchases. Coltie App asks for nothing beyond the download.
Coltie App holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: KeepCalling International has 19K ratings behind it against 6, so its average is the more settled of the two.
KeepCalling International ships an update every 3 weeks, Coltie App every 2 weeks. The most recent releases landed on October 30, 2026 and October 8, 2026 respectively.
| Parameter | KeepCalling International | Coltie App |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (19K ratings) | 5.0 (6 ratings) — better |
| Positive reviews | 39.2% of reviews | — |
| Number of ratings | 19K — better | 6 |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 53 MB | 60 MB |
| Age rating | 4+ | 17+ |
| Developer | Miron Enterprises, LLC | COLTIE Inc |
Customer experience
KeepCalling International
Coltie App
Bugs and requests
KeepCalling International
Reported bugs
2 issues- Prompt doesn't work
- Can't find number
Requested features
1 request- Add ability to add minutes/call time from within the app
Coltie App
Not enough reviews yet to summarise bugs or requests.
In-app purchases
KeepCalling International
- $5 Voice Credit$5.99
- $6 Voice Credit2 variants$5.99
- £4 Voice Credit$5.99
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- €4.5 Voice Credit$5.99
- ¥500 Voice Credit$5.99
- R$15 Voice Credit$5.99
- Prepaid 10 CAD credit$8.99
- Prepaid 10 EUR credit$11.99
- $10 Voice Credit$11.99
- Prepaid 20 CAD credit$17.99
- $20 Voice Credit$23.99
- Prepaid 20 GBP credit$29.99
- Prepaid 50 AUD credit$39.99
- Prepaid 50 CAD credit$44.99
Coltie App
No in-app purchases





