Comparison

International Calling vs Grandstream Wave

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

Head to head
About

International Calling

Make affordable international calls to landlines and mobiles worldwide. Avoid roaming fees by calling over Wi-Fi and keep your personal number visible. Easily recharge mobile phones and send international SMS messages.

Highlights
  • Affordable international calls
  • Wi-Fi calling to avoid roaming
  • Caller ID with personal number
  • Transparent per-minute rates
  • Earn free calling credits
  • Easy mobile recharge
  • International SMS texting
Features
Read full description

Call landlines and mobiles in the the United Kingdom, Nigeria, Ghana, Jamaica, Kenya, Ethiopia, France, the United Arab Emirates, Saudi Arabia, Egypt, Oman, Philippines, and 200 more countries and territories. Why Yolla: ∙ VALUE FOR MONEY. Compare our rates and prepare to be amazed. We provide the best rates on more than 30.000 international call destinations. Forget about time – talk more for less. ∙ AVOID ROAMING FEES. Make a call via Wi-Fi and save a fortune on your carrier's roaming fees. Make the most out of your staying abroad! ∙ KEEP YOUR NUMBER. Enjoy Caller ID - a premium feature offered by Yolla for free! Your friends will always receive a call from your personal phone number. They won't know you're calling from the app! ∙ STAY IN CONTROL. We show the price before the call and don't have any hidden charges and connection fees. You pay a straightforward per-minute rate and always know where your money goes. ∙ EARN CREDITS. By inviting friends you can easily earn free credits to call to landlines and mobiles all over the world. Simply send out your personal link and enjoy talking for free! ∙ EASY MOBILE RECHARGE. Top up any mobile number. With Yolla you will have no problem sending airtime to your colleagues, friends, loved ones or anyone. We offer easy & instant mobile recharge with low fees. Forget about calling cards or complex procedures and recharge any number online in just 2 clicks. ∙ INTERNATIONAL SMS TEXTING. Don't have time to call abroad and need to drop a message ASAP? Send text messages to 150 + countries via Yolla. ∙ SEND YOLLA TOP-UPS TO ANYONE. Have friends or family using Yolla? Great! Now you can recharge their accounts. Just purchase and send Yolla credits to your family and friends. They will enjoy free talktime with you or anyone else. ∙ MILLIONS TRUST YOLLA. Be a savvy caller like thousands of Yolla users! Get Yolla today and start talking more for less! Drop the doubt and start enjoying calling abroad! All you need is the Internet connection – WiFi, 4G, LTE, or 3G. Your friends and partners will see no difference - but you will. Any questions or suggestions? Please contact us at hi@yollacalls.com.

About

Grandstream Wave

This app transforms your device into a powerful softphone, enabling high-quality audio and video calls, and seamless meeting participation. Connect to your IP PBX system to call extensions, landlines, and mobile numbers from anywhere with a network connection.

Highlights
  • High-quality audio and video calls
  • Schedule and attend meetings
  • Join meetings without logging in
  • Connect to UCM63XX series IP PBX
  • Call extensions, landlines, and mobiles
  • Create and join meetings
Features
Read full description

Wave turns your device into a softphone that can connect, call, and video conference from anywhere by connecting to a Grandstream UCM63XX series IP PBX. It supports key features such as high-quality audio and video calls, scheduling and attending meeting, and allows joining meetings without logging in. As long as there is a network connection, users can register to UCM63XX series extensions, directly call other extensions, landlines, and mobile numbers, as well as create and join meetings. With Wave, users can enjoy calls and meetings no matter where they are, boosting communication efficiency and productivity for your enterprise.

Screenshots

International Calling4 screens
Grandstream Wave4 screens

Verdict

The call

The clearest difference is rating: International Calling at 4.7 against Grandstream Wave's 2.6. International Calling also leads on ratings volume (9K vs 51) and review sentiment (36% vs 12%). Grandstream Wave's advantage is in-app purchases (none vs 6) and iOS requirement (13.0 vs 15.0). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. International Calling sells 6 one-off in-app purchases. Grandstream Wave asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

International Calling holds the better App Store score, 4.7 against 2.6. That said, the two scores are not equally well evidenced: International Calling has 9K ratings behind it against 51, so its average is the more settled of the two. Written reviews point the same way: 36% of International Calling's written reviews are positive against 12% of Grandstream Wave's.

UpkeepUpdate frequency

International Calling ships an update every 3 weeks, Grandstream Wave every 5 weeks. The most recent releases landed on November 9, 2026 and November 3, 2026 respectively.

Scorecard6 real differences · 4 level
International Calling versus Grandstream Wave: the parameters behind the verdict, then further details
ParameterInternational CallingGrandstream Wave
PriceFreeFree
Rating4.7 (9K ratings) — better2.6 (51 ratings)
Positive reviews35.6% of reviews — better12.1% of reviews
Number of ratings9K — better51
Update frequencyEvery 3 weeks — betterEvery 5 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size105 MB116 MB
Age rating4+4+
DeveloperYolla Calls InternationalGrandstream

Customer experience

International Calling

All ratings8,958 ratings
Positive92.1%
Neutral2.1%
Negative5.8%
Written reviews786 reviews
Positive35.6%
Neutral3.9%
Negative60.4%

Grandstream Wave

All ratings51 ratings
Positive33.3%
Neutral7.8%
Negative58.8%
Written reviews107 reviews
Positive12.1%
Neutral9.3%
Negative78.5%

Bugs and requests

International Calling

Reported bugs

3 issues
  • Keypad not working during calls
  • Balance disappearing without explanation
  • Simultaneous call limit issues

Requested features

3 requests
  • Improve SMS/text messaging functionality
  • Add option to edit contact photos
  • Provide more transparent pricing information

Grandstream Wave

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

International Calling

One-time6
  • $4 Yolla Top-Up$4.99
  • $5 Yolla Top-Up$5.99
  • $8 Yolla Top-Up$9.99
Show 3 more
  • $10 Yolla Top-Up$12.99
  • $16 Yolla Top-Up$19.99
  • $20 Yolla Top-Up$24.99
None

Grandstream Wave

No in-app purchases

Questions

Is International Calling free?
International Calling is free to download, with in-app purchases available.
Is Grandstream Wave free?
Grandstream Wave is free to download, with no in-app purchases.
Which has better reviews, International Calling or Grandstream Wave?
International Calling is rated higher. International Calling averages 4.7 out of 5 from 9K ratings, while Grandstream Wave averages 2.6 from 51 ratings.
Do International Calling or Grandstream Wave have ads?
Neither International Calling nor Grandstream Wave shows ads.
Which is updated more often, International Calling or Grandstream Wave?
International Calling ships an update every 3 weeks, and Grandstream Wave every 5 weeks. Most recently, International Calling was updated on November 9, 2026 and Grandstream Wave on November 3, 2026.

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