SmartLine Second Phone Number vs ZynoTalk
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SmartLine Second Phone Number
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.
- 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
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SmartLine is a second phone number for your business. When you receive a call through SmartLine, you know it’s for business so you can answer professionally. When you call or text through SmartLine, customers see your new business phone number so your personal number stays private. - Professional Quality. Calls use your cellular connection – NOT VOIP – to give you the call clarity and reliability you need to sound professional. - Spam Call Filter. Answer calls with confidence because spam calls are sent directly to voicemail. - Custom Voicemail. Record a custom voicemail greeting to prompt callers to leave a message. - Voicemail to Text. Get your business voicemail automatically transcribed to text to save you time. - Set Business Hours. Choose when you’re available for business calls and send callers to voicemail after hours. - Stay Organized. See your conversation history of calls, texts, pictures, and voicemail, organized by contact. - Stay Notified. Be notified and follow up quickly whenever you have missed calls, voicemail messages, or texts. -- Terms -- An existing SmartLine subscription is required to use this app. Currently available in the US only. SmartLine will automatically renew via iTunes, unless you cancel 24 hours before the the end of the current billing period. Easily manage and cancel your SmartLine 2nd phone number at any time through your iTunes subscription settings. If you didn't purchase SmartLine through iTunes, you can manage your subscription through the GoDaddy website. Terms of use: https://www.godaddy.com/legal-agreements.aspx Privacy policy: https://www.godaddy.com/Agreements/Privacy.aspx
ZynoTalk
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.
- Review and search calls
- Voicemail management
- Text message access
- Fax review
- AI-powered search
- Mobile-first interface
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The ZynoTalk mobile app provides a mobile-first experience for reviewing & searching your calls, voicemails, text messages and faxes, just like you can in the ZynoSuite portal. Placing & receiving calls via the ZynoTalk app is in private beta. Contact support@zyno.app to join. A ZynoTalk subscription is required. Visit zynotalk.com for more information.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | SmartLine Second Phone Number | ZynoTalk |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (44K ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 15.5% of reviews | — |
| Number of ratings | 44K — better | 1 |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | Subscription |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 12.1 — better | 16.4 |
| Further details — not scored | ||
| Size | 75 MB | 73 MB |
| Age rating | 4+ | 4+ |
| Developer | GoDaddy.com, LLC | Signal24 LLC |
Customer experience
SmartLine Second Phone Number
ZynoTalk
Bugs and requests
SmartLine Second Phone Number
Reported bugs
3 issues- Disappearing call/text history
- Incorrect number display on outgoing calls
- Failure to sync across devices
Requested features
4 requests- Ability to send multiple photos/files
- Improved caller ID display
- Option to have multiple voicemail greetings
- Compatibility with VPNs and older devices
ZynoTalk
Not enough reviews yet to summarise bugs or requests.
In-app purchases
SmartLine Second Phone Number
- SmartLine Unlimited (Monthly)7 Days trial$12.991 Month
- SmartLine Toll-Free7 Days trial$19.991 Month
ZynoTalk
No in-app purchases
Questions
Is SmartLine Second Phone Number free?
Is ZynoTalk free?
Which has better reviews, SmartLine Second Phone Number or ZynoTalk?
Do SmartLine Second Phone Number or ZynoTalk have ads?
Which is updated more often, SmartLine Second Phone Number or ZynoTalk?
Other comparisons
