NextivaONE vs SmartLine Second Phone Number
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NextivaONE
Establish a professional presence with a dedicated business phone number for calls and texts. Manage contacts, send SMS/MMS, and enjoy unlimited voice calling within the US and Canada. Offers free number porting and local/toll-free numbers.
- Dedicated business phone number
- Unlimited US/Canada calling
- Mobile texting (SMS/MMS)
- Contact management
- Business voicemail
- Free number porting
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Keep your work life separate from your personal life by getting a dedicated business phone number for calls, texts, and contact management. With NextivaONE, you can connect with your customers and team using unlimited voice calling within the US and Canada. Additionally, you can send texts using your business phone number. Key features include: * Unlimited calling (US and Canada) * Mobile texting (SMS/MMS) * Mobile contact management * Contacts integration * Business voicemail * Free number porting * Free local and toll-free numbers * 24/7 customer support Join over 100,000 Nextiva customers who rely on the most dependable network in the industry.
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
Screenshots
Verdict
The clearest difference is rating: SmartLine Second Phone Number at 4.7 against NextivaONE's 4.2. SmartLine Second Phone Number also leads on ratings volume (44K vs 7.1K) and iOS requirement (12.1 vs 18.0). NextivaONE's advantage is in-app purchases (none vs 2) and update cadence (every 3 weeks vs every 2 months). On price, review sentiment, 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
Both are free to download. SmartLine Second Phone Number sells 2 in-app purchases, starting at $12.99 per month. NextivaONE asks for nothing beyond the download.
SmartLine Second Phone Number holds the better App Store score, 4.7 against 4.2. That said, the two scores are not equally well evidenced: SmartLine Second Phone Number has 44K ratings behind it against 7.1K, so its average is the more settled of the two. Written reviews point the same way: 13% of NextivaONE's written reviews are positive against 15% of SmartLine Second Phone Number's.
NextivaONE ships an update every 3 weeks, SmartLine Second Phone Number every 2 months. The most recent releases landed on September 20, 2026 and September 24, 2026 respectively.
| Parameter | NextivaONE | SmartLine Second Phone Number |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (7.1K ratings) | 4.7 (44K ratings) — better |
| Positive reviews | 13.0% of reviews | 15.5% of reviews — better |
| Number of ratings | 7.1K | 44K — better |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Subscription |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.0 | 12.1 — better |
| Further details — not scored | ||
| Size | 136 MB | 75 MB |
| Age rating | 4+ | 4+ |
| Developer | Nextiva | GoDaddy.com, LLC |
Customer experience
NextivaONE
SmartLine Second Phone Number
User reviews
NextivaONE
From 7.1K App Store ratingsWhat we love
- 🚀 Ease of use
- 👍 Accessibility
- 🔒 Call quality
Room to improve
- 🐛 Dropped calls
- 🐛 Missed notifications
- 🐛 Unreliable app performance
- 🐛 Buggy text messaging
- 🐛 Poor call transfer functionality
SmartLine Second Phone Number
From 44K App Store ratingsWhat we love
- 🚀 Convenient business line
- 📝 Stores call/text history
- ⏱️ Ability to set business hours
Room to improve
- 🐛 Unreliable text messaging
- 📞 Missed/dropped calls
- 🔔 Delayed/missing notifications
- 🤖 Poor customer support
Bugs and requests
NextivaONE
Reported bugs
4 issues- Calls not ringing on mobile device
- Inability to view voicemails and call history
- Frequent app crashes and freezes
- Sync issues between mobile and desktop apps
Requested features
4 requests- Improved call handling and management
- Enhanced text messaging capabilities
- Streamlined login and logout process
- Customizable app settings and defaults
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
In-app purchases
NextivaONE
No in-app purchases
SmartLine Second Phone Number
- SmartLine Unlimited (Monthly)7 Days trial$12.991 Month
- SmartLine Toll-Free7 Days trial$19.991 Month
Questions
Is NextivaONE free?
Is SmartLine Second Phone Number free?
Which has better reviews, NextivaONE or SmartLine Second Phone Number?
Do NextivaONE or SmartLine Second Phone Number have ads?
Which is updated more often, NextivaONE or SmartLine Second Phone Number?
Other comparisons
