# SmartLine Second Phone Number vs ZynoTalk

The clearest difference is in-app purchases: ZynoTalk at none against SmartLine Second Phone Number's 2. ZynoTalk also leads on update cadence (every 2 weeks vs every 2 months) and rating (5.0 vs 4.7). SmartLine Second Phone Number's advantage is ratings volume (44K vs 1) and iOS requirement (12.1 vs 16.4). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. SmartLine Second Phone Number sells 2 in-app purchases, starting at $12.99 per month. ZynoTalk asks for nothing beyond the download.

ZynoTalk holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: SmartLine Second Phone Number has 44K ratings behind it against 1, so its average is the more settled of the two.

SmartLine Second Phone Number ships an update every 2 months, ZynoTalk every 2 weeks. The most recent releases landed on October 29, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | SmartLine Second Phone Number | ZynoTalk |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (44K ratings)](https://appshunter.io/ios/app/smartline-second-phone-number/id1161533637/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/zynotalk/id6478135154/reviews)** |
| Number of ratings | **44K** | 1 |
| Positive reviews | 15.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Subscription | Subscription |
| Size | 75 MB | 73 MB |
| Requires iOS | **12.1** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [GoDaddy.com, LLC](https://appshunter.io/developer/333201816) | [Signal24 LLC](https://appshunter.io/developer/647063251) |

## What reviewers say

### SmartLine Second Phone Number

[App page](https://appshunter.io/ios/app/smartline-second-phone-number/id1161533637)

Get a dedicated second phone number for your business to maintain privacy and professionalism. This app ensures calls are business-related, offers a spam filter, custom voicemail, and voicemail-to-text transcription. Manage your business communications efficiently with organized history and timely notifications.

**Highlights:** Dedicated business phone number, Professional call quality (not VoIP), Spam call filtering, Customizable voicemail greetings, Voicemail to text transcription, Set business hours for calls, Organized call and text history

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SmartLine Unlimited (Monthly) | $12.99 | per month |
| SmartLine Toll-Free | $19.99 | per month |

**What reviewers like**

- 🚀 Convenient business line
- 📝 Stores call/text history
- ⏱️ Ability to set business hours

**What reviewers complain about**

- 🐛 Unreliable text messaging
- 📞 Missed/dropped calls
- 🔔 Delayed/missing notifications
- 🤖 Poor customer support

**Reported bugs**

- Disappearing call/text history
- Incorrect number display on outgoing calls
- Failure to sync across devices

**Requested features**

- Ability to send multiple photos/files
- Improved caller ID display
- Option to have multiple voicemail greetings
- Compatibility with VPNs and older devices


### ZynoTalk

[App page](https://appshunter.io/ios/app/zynotalk/id6478135154)

Manage business communications including calls, voicemails, texts, and faxes from a mobile-first interface. Access your communication history and search through messages with AI-powered tools. A subscription is required for full functionality.

**Highlights:** Review and search calls, Voicemail management, Text message access, Fax review, AI-powered search, Mobile-first interface

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SmartLine Second Phone Number free?

SmartLine Second Phone Number is free to download, with in-app purchases available.

### Is ZynoTalk free?

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

### Which has better reviews, SmartLine Second Phone Number or ZynoTalk?

ZynoTalk is rated higher. SmartLine Second Phone Number averages 4.7 out of 5 from 44K ratings, while ZynoTalk averages 5.0 from 1 ratings.

### Do SmartLine Second Phone Number or ZynoTalk have ads?

Neither SmartLine Second Phone Number nor ZynoTalk shows ads.

### Which is updated more often, SmartLine Second Phone Number or ZynoTalk?

SmartLine Second Phone Number ships an update every 2 months, and ZynoTalk every 2 weeks. Most recently, SmartLine Second Phone Number was updated on October 29, 2026 and ZynoTalk 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.*