# Call.com vs Sky Authenticator

The clearest difference is in-app purchases: Sky Authenticator at none against Call.com's 33. Sky Authenticator also leads on iOS requirement (13.0 vs 16.4). Call.com's advantage is update cadence (every 2 weeks vs every 2 months). On price, ads and device support there is nothing between them.

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

Call.com ships an update every 2 weeks, Sky Authenticator every 2 months. The most recent releases landed on October 13, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Call.com | Sky Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (766 ratings)](https://appshunter.io/ios/app/callcom-2nd-phone-number/id6445892075/reviews)** | — |
| Number of ratings | **766** | — |
| Positive reviews | 37.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 76 MB | 25 MB |
| Requires iOS | 16.4 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Call.com Telecom](https://appshunter.io/developer/1674539677) | [Sky World Limited](https://appshunter.io/developer/1503688557) |

## What reviewers say

### Call.com

[App page](https://appshunter.io/ios/app/callcom-2nd-phone-number/id6445892075)

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:** Vision Pro support

**In-app purchases (32)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Add £1.39 | $1.99 | one-time |
| Add $1.39 | $1.99 | one-time |
| Add €1.39 | $1.99 | one-time |
| Add €3.49 | $3.99 | one-time |
| kr 50,00 Credit | $3.99 | one-time |
| €5,00 Credit | $4.00 | one-time |
| $4.99 Credit | $4.99 | one-time |
| Add £3.49 | $4.99 | one-time |
| Add $3.49 | $4.99 | one-time |
| £5.00 Credit | $5.00 | one-time |
| $5.00 Credit | $5.00 | one-time |
| 3 Month Subscription | $5.99 | one-time |
| $6.99 Credit | $6.99 | one-time |
| 1 Month Subscription | $6.99 | one-time |
| 3 Month Subscription | $6.99 | one-time |
| kr 100,00 Credit | $7.99 | one-time |
| €10,00 Credit | $9.00 | one-time |
| $9.99 Credit | $9.99 | one-time |
| 3 Month Subscription | $9.99 | one-time |
| Add €8.49 | $9.99 | one-time |
| $10.00 Credit | $10.00 | one-time |
| Add £8.49 | $11.99 | one-time |
| Add $8.49 | $11.99 | one-time |
| 3 Month Subscription | $15.99 | one-time |
| 12 Month Subscription | $15.99 | one-time |
| 12 Month Subscription | $16.99 | one-time |
| $19.99 Credit | $19.99 | one-time |
| 3 Month Subscription | $19.99 | one-time |
| $24.99 Credit | $24.99 | one-time |
| 12 Month Subscription | $24.99 | one-time |
| 12 Month Subscription | $39.99 | one-time |
| 12 Month Subscription | $49.99 | one-time |

**What reviewers like**

- 👍 Great for second number
- 👍 Affordable pricing
- 👍 Good call quality
- 👍 User-friendly interface
- 👍 Reliable for SMS

**What reviewers complain about**

- 🐛 Payment issues
- 🐛 Login problems
- 🐛 Call reliability issues
- 🐛 Poor call quality
- 🐛 App crashes/freezes

**Reported bugs**

- 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

**Requested features**

- 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


### Sky Authenticator

[App page](https://appshunter.io/ios/app/sky-authenticator/id6480073025)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Call.com free?

Call.com is free to download, with in-app purchases available.

### Is Sky Authenticator free?

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

### Do Call.com or Sky Authenticator have ads?

Neither Call.com nor Sky Authenticator shows ads.

### Which is updated more often, Call.com or Sky Authenticator?

Call.com ships an update every 2 weeks, and Sky Authenticator every 2 months. Most recently, Call.com was updated on October 13, 2026 and Sky Authenticator on October 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*