Comparison

FastsApp vs Keren Calls

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

Head to head

Affordable International Calls

Free

🌐 Social Networking

No ratingsView app →

About

FastsApp

Features

Read full description

With FastsApp you can call, send text message or contact with people on popular platforms without saving on your contacts.

About

Keren Calls

Features

Read full description

Keren Calls - Make affordable international calls to 150+ countries at the lowest rates. FEATURES: • Crystal-clear VoIP calls over WiFi or mobile data • Call any phone number worldwide - mobile and landline • See rates before you call - no surprises • Easy balance top-up with credit card • Call directly from your contacts • View call history and receipts • Multi-language support (English, Dutch, French, German, Tigrinya, Amharic) WHY KEREN CALLS? • Low Rates • No contracts or monthly fees • Pay only for what you use • Secure payments via Stripe Download now and start calling! Terms of Use: https://cathedrale.net/terms-of-service Privacy Policy: https://cathedrale.net/privacy-policy

Screenshots

FastsApp4 screens

Keren Calls4 screens

Verdict

The call

The clearest difference is in-app purchases: FastsApp at none against Keren Calls's 3. FastsApp also leads on iOS requirement (12.0 vs 16.0). Keren Calls's advantage is update cadence (every 3 weeks vs every 3 months). On price, 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. Keren Calls sells 3 in-app purchases, starting at $17.99 per month. FastsApp asks for nothing beyond the download.

UpkeepUpdate frequency

FastsApp ships an update every 3 months, Keren Calls every 3 weeks. The most recent releases landed on October 13, 2026 and October 7, 2026 respectively.

Scorecard3 real differences · 3 level

FastsApp versus Keren Calls: the parameters behind the verdict, then further details
Parameter	FastsApp	Keren Calls
Price	Free	Free
Update frequency	Every 3 months	Every 3 weeks — better
Ads	No	No
In-app purchases	No — better	Yes
Devices	iPhone, iPad, iPod — better	iPhone, iPad
Requires iOS	12.0 — better	16.0
Further details — not scored
Size	47 MB	33 MB
Age rating	4+	4+
Developer	Dimscorp	abel Beyene tekele

In-app purchases

None

FastsApp

No in-app purchases

3 purchases

Keren Calls

Subscriptions1

Standard Plan$17.991 Month

One-time2

€5 Calling Credit$5.99
€10 Calling Credit$11.99

Questions

Is FastsApp free?

FastsApp is free to download, with no in-app purchases.

Is Keren Calls free?

Keren Calls is free to download, with in-app purchases available.

Do FastsApp or Keren Calls have ads?

Neither FastsApp nor Keren Calls shows ads.

Which is updated more often, FastsApp or Keren Calls?

FastsApp ships an update every 3 months, and Keren Calls every 3 weeks. Most recently, FastsApp was updated on October 13, 2026 and Keren Calls on October 7, 2026.