Comparison

International Calling vs Openspace.Social

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 in over 180 countries. Your real number appears as caller ID, and the recipient doesn't need an app. Pay only for what you use with no subscriptions.

Highlights
  • Calls to 180+ countries
  • Rates from $0.02/min
  • Verified caller ID
  • Dual-provider routing
  • No subscriptions
  • Pay-as-you-go credits
Read full description

CallSky connects you to real phone numbers in 180+ countries. Landlines and mobiles, through the actual phone network — not an internet-to-internet gimmick. The person you're calling doesn't need an app or even WiFi. Rates start at $0.02/minute. That's up to 90% less than what your carrier charges. WHY CALLSKY EXISTS International calls shouldn't cost a fortune. And when you call your mom in another country, she should see your name on her phone — not "Unknown Caller." We built CallSky because existing options were either too expensive, too unreliable, or both. WHAT YOU GET - Rates from $0.02/min across 180+ countries. You see the exact cost before you dial. - Your verified number shows as caller ID. People actually pick up when they recognize who's calling. - Two providers behind the scenes. If one path fails, CallSky switches to another and shows you the rate before connecting. - No subscriptions. Buy credits when you need them, use them whenever. WHO USES CALLSKY - Parents calling family overseas every week without dreading the phone bill - Business owners reaching international clients who need to see a real caller ID - Students abroad calling home - Travelers who'd rather not pay roaming rates - Anyone calling banks, embassies, or government offices in another country - Former Skype users who need a replacement for international calls PLEASE NOTE - Outgoing calls only — CallSky makes calls, it doesn't receive them - Not for emergencies — always use your phone's native dialer for 911, 999, or 112 - Needs WiFi or mobile data to place calls HOW IT WORKS 1. Sign in with Google, Apple, or email 2. Verify your phone number for caller ID (optional but worth it) 3. Buy credits — pay as you go 4. Dial the number, check the rate, and call UNDER THE HOOD - Dual-provider routing picks the best path for each call - Automatic failover if the first route drops — you approve the backup rate first - 99.9% uptime No monthly fees. No contracts. No hidden charges. Privacy Policy: https://callsky.io/privacy Terms of Use: https://callsky.io/terms

About

Openspace.Social

Features
Read full description

Openspace.Social is a decentralized social network built on the Fediverse. Connect, share, and follow across thousands of communities comfortably with no ads, no tracking, no algorithm working against you. WHY OPENSPACE Most social apps decide what you see, sell what they learn about you, and lock you inside their walls. Openspace does the opposite. As a Fediverse-native platform, your account can connect with people on Mastodon and other ActivityPub-compatible networks. Your data stays yours. WHAT YOU CAN DO • Build or join communities — gather around shared interests, run your own community, or contribute to others • Engage in real conversation — comment, react, and reply with people who actually want to talk • Pin the posts that matter — keep your best work or important threads at the top of your profile • Reach across the Fediverse — comment, react, and reshare content from any compatible network • Group connections into Circles — share specific posts with the right group of people, not the whole internet • Organize accounts into Lists — curate custom feeds by topic, person, or interest • Build Your Own Algorithm (BYOA) — set your own rules for what shows up. You decide what's signal and what's noise. • No ads. No tracking. — we don't sell your attention. The only data we use is what's needed to authenticate your account and keep it secure. WHO IT'S FOR Anyone who wants social media to feel like a place again — not a stream of ads and outrage. Creators, hobbyists, friend groups, communities, and people who remember what social used to be. A FEW THINGS TO KNOW • Minimum signup age: 16 (with parental consent for ages 16–18) • Available on iOS, and on the web at https://openspace.social • Privacy policy: openspace.social/privacy • Community guidelines: openspace.social/guidelines • Support: admin@openspacelive.com Have feedback or run into a problem? Get in touch, we read every message.

Screenshots

International Calling4 screens
Openspace.Social4 screens

Verdict

The call

The clearest difference is in-app purchases: Openspace.Social at none against International Calling's 6. Openspace.Social also leads on iOS requirement (15.1 vs 17.0). International Calling's advantage is ads (none vs shown). On price, update cadence 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. Openspace.Social asks for nothing beyond the download.

UpkeepUpdate frequency

International Calling ships an update every 2 weeks, Openspace.Social fortnightly. The most recent releases landed on October 19, 2026 and October 10, 2026 respectively.

Scorecard3 real differences · 7 level
International Calling versus Openspace.Social: the parameters behind the verdict, then further details
ParameterInternational CallingOpenspace.Social
PriceFreeFree
Rating4.7 (28 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings28 — better—
Update frequencyEvery 2 weeks — betterFortnightly
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.1 — better
Further details — not scored
Size39 MB37 MB
Age rating4+17+
DeveloperVenus Cloud LtdMassimo Raimondi

In-app purchases

6 purchases

International Calling

One-time6
  • Small Top-Up Pack$4.99
  • Small Top-Up Pack$5.00
  • Medium Top-Up Pack$8.99
Show 3 more
  • Medium Top-Up Pack$10.00
  • Large Credit Pack$16.99
  • Large Credit Pack$20.00
None

Openspace.Social

No in-app purchases

Questions

Is International Calling free?
International Calling is free to download, with in-app purchases available.
Is Openspace.Social free?
Openspace.Social is free to download, with no in-app purchases.
Do International Calling or Openspace.Social have ads?
Openspace.Social shows ads; International Calling does not.
Which is updated more often, International Calling or Openspace.Social?
International Calling ships an update every 2 weeks, and Openspace.Social fortnightly. Most recently, International Calling was updated on October 19, 2026 and Openspace.Social on October 10, 2026.

Other comparisons