Comparison

OpusTel vs Call.com

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

Head to head
About

OpusTel

This app provides a real Swiss international telephone number for secure VoIP calls on iOS devices. It offers HD audio quality, free global calls between users, and call recording capabilities, all with a focus on user privacy.

Highlights
  • Real Swiss international telephone number
  • Secure VoIP calls
  • HD high-definition audio quality
  • Free global calls between users
  • Call recording
  • Conference calls
  • Automatic language selection
Read full description

OpusTel OpusTel is the mobile phone App for iPhone, iPod and iPad, permitting one to use a real Swiss international telephone number, e.g. 0041 41 520 60 00. It allows one to make and to receive secure VoIP calls from any iOS device using 5G/4G/3G/UMTS or Wi-Fi Internet connectivity. It was developed with the focus on privacy. Features: 1. Secure incoming and outgoing calls 2. Incomming calls are free of charge (no roamingcosts) 2. HD high-definition audio quality with the G722 and Opus codec 3. Free global calls from OpusTel to OpusTel 4. Easy transfer calls to any telephone number 5. Ability to record incoming and outgoing calls 6. Conference calls 7. Automatic language selection based on handy language (15 languages like EN, DE, CN, FR, ES, IT ...)

About

Call.com

Get a real virtual phone number on your device without needing a new SIM card. Make calls, send texts, and have HD video calls with a dedicated second line for work, travel, or personal use. Manage multiple numbers and stay connected globally.

Highlights
  • Virtual second phone number
  • Voice and HD video calls
  • SMS messaging
  • Manage multiple numbers
  • Personalized voicemail
  • Call and SMS forwarding
  • Availability controls
Features
Read full description

Your second phone number in an app. A real virtual number you can use on any device — no SIM cards, no extra phones. Call.com gives you a dedicated second line for work, travel, or personal use. Choose a local number in the US, UK, France, Canada, Mexico, Australia, Austria, Belgium, Finland, and Puerto Rico, with more countries coming soon. VOICE CALLS Make crystal-clear calls to mobiles and landlines worldwide at low rates. Call other Call.com users for free. SMS Send affordable SMS messages to any mobile number in the world. VIDEO CALLS One-to-one or group HD video calls with up to 10 participants. Free between Call.com users. CHAT & VOICE MESSAGES Full-featured chat with support for images, files, emojis, and voice messages. WHO IT'S FOR — Freelancers & Small Business: A dedicated work line to separate business and personal communication. Project a professional image with a local number. — Remote Teams: Shared company credit, flexible billing, and the ability to reassign numbers between team members in one click. — Expats & Digital Nomads: Keep a local number in your home country while living abroad. Friends, family, and banks can reach you without international charges. — International Travellers: Connect over Wi-Fi and avoid expensive roaming fees. — International Callers: Stay in touch with friends and family overseas at affordable rates. — Coaches & Teachers: Communicate with students and clients on a dedicated number with flexible availability settings. — Property Managers & Hosts: A separate line for guest and client inquiries across multiple listings. — Tablet & Laptop Users: Turn any device into a fully functioning phone — no physical SIM required. MANAGE MULTIPLE NUMBERS Add more than one virtual number and manage them all from a single app. Each number comes with its own voicemail, availability schedule, and call controls. FEATURES — Personalized voicemail for each number — Call and SMS forwarding — Advanced availability controls and quiet hours — Block unwanted calls and messages — Send SMS to multiple contacts at once — Synchronized contacts across all your devices — Remote logout for account security — Login activity monitoring — Number porting — transfer an existing number to Call.com LOW INTERNATIONAL RATES Affordable calls and SMS to hundreds of destinations. Transparent pricing visible in the app before you call or send a message. USE ON MULTIPLE DEVICES Your calls, messages, and contacts stay synchronized across your devices. Trusted by over 1,000,000 users worldwide. Built in Europe. For support, contact our team directly in the app or email support@call.com

Screenshots

OpusTel4 screens
Call.com4 screens

Verdict

The call

The clearest difference is review sentiment: OpusTel at 80% against Call.com's 37%. OpusTel also leads on in-app purchases (none vs 33) and rating (5.0 vs 4.6). Call.com's advantage is update cadence (every 10 days vs every 14 months) and ratings volume (742 vs 6). On price, ads, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Call.com sells 32 one-off in-app purchases. OpusTel asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

OpusTel holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Call.com has 742 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 80% of OpusTel's written reviews are positive against 37% of Call.com's.

UpkeepUpdate frequency

OpusTel ships an update every 14 months, Call.com every 10 days. The most recent releases landed on August 29, 2026 and September 21, 2026 respectively.

Scorecard6 real differences · 4 level
OpusTel versus Call.com: the parameters behind the verdict, then further details
ParameterOpusTelCall.com
PriceFreeFree
Rating5.0 (6 ratings) — better4.6 (742 ratings)
Positive reviews80.0% of reviews — better37.3% of reviews
Number of ratings6742 — better
Update frequencyEvery 14 monthsEvery 10 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhoneiPhone, iPad — better
Requires iOS16.0 — better16.4
Further details — not scored
Size98 MB76 MB
Age rating4+4+
DeveloperOpusTelCall.com Telecom

Customer experience

OpusTel

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews10 reviews
Positive80.0%
Neutral10.0%
Negative10.0%

Call.com

All ratings742 ratings
Positive90.4%
Neutral3.8%
Negative5.8%
Written reviews67 reviews
Positive37.3%
Neutral6.0%
Negative56.7%

Bugs and requests

OpusTel

Not enough reviews yet to summarise bugs or requests.

Call.com

Reported bugs

15 issues
  • In-app purchase not available
  • System server very bad, loading time out
  • Cannot log in to account
  • Numbers scramble when making calls
  • Error: 'sorry something went wrong, please try again' when making calls
Show 10 more
  • Logged out and purchased number disappeared after update
  • Fails KYC verification without explanation
  • Error: 'fetch credit products error'
  • App not logging in, says number is wrong
  • Internal server error / unable to fetch payment data
  • App not opening after migration from Cloud SIM
  • Calls cut off after a few seconds
  • Slow connection and calls disconnect after a few minutes
  • Cannot get through to numbers
  • Dropped SMS messages

Requested features

5 requests
  • Add ability to send/receive pictures and video
  • Add more country options for numbers
  • Improve UI for handling multiple numbers
  • Allow default number selection
  • Enable in-app purchases via App Store

In-app purchases

None

OpusTel

No in-app purchases

32 purchases

Call.com

One-time32
  • Add £1.39$1.99
  • Add $1.39$1.99
  • Add €1.39$1.99
Show 29 more
  • Add €3.49$3.99
  • kr 50,00 Credit$3.99
  • €5,00 Credit$4.00
  • $4.99 Credit$4.99
  • Add £3.49$4.99
  • Add $3.49$4.99
  • £5.00 Credit$5.00
  • $5.00 Credit$5.00
  • 3 Month Subscription$5.99
  • $6.99 Credit$6.99
  • 1 Month Subscription$6.99
  • 3 Month Subscription$6.99
  • kr 100,00 Credit$7.99
  • €10,00 Credit$9.00
  • $9.99 Credit$9.99
  • 3 Month Subscription$9.99
  • Add €8.49$9.99
  • $10.00 Credit$10.00
  • Add £8.49$11.99
  • Add $8.49$11.99
  • 3 Month Subscription$15.99
  • 12 Month Subscription$15.99
  • 12 Month Subscription$16.99
  • $19.99 Credit$19.99
  • 3 Month Subscription$19.99
  • $24.99 Credit$24.99
  • 12 Month Subscription$24.99
  • 12 Month Subscription$39.99
  • 12 Month Subscription$49.99

Questions

Is OpusTel free?
OpusTel is free to download, with no in-app purchases.
Is Call.com free?
Call.com is free to download, with in-app purchases available.
Which has better reviews, OpusTel or Call.com?
OpusTel is rated higher. OpusTel averages 5.0 out of 5 from 6 ratings, while Call.com averages 4.6 from 742 ratings.
Do OpusTel or Call.com have ads?
Neither OpusTel nor Call.com shows ads.
Which is updated more often, OpusTel or Call.com?
OpusTel ships an update every 14 months, and Call.com every 10 days. Most recently, OpusTel was updated on August 29, 2026 and Call.com on September 21, 2026.

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