---
title: "AI Line: Second Phone Number — App Overview"
url: https://marlvel.ai/intel-report/productivity/ai-line-second-phone-number
category: Productivity
developer: Second Phone Number Inc
platforms: ios
rating: 4.7 (436 ratings)
pricing: freemium
report_level: overview
generated: 2026-04-18
---

<!-- SECTION: Key Insight -->
> **Key Insight:** While the app promises a privacy-focused secondary line, user reviews highlight significant concerns regarding billing transparency, subscription costs, and call reliability.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Productivity |
| Rating | 4.7 ★ (436) |
| Pricing | freemium |
| Platforms | iOS |
| Latest Version (iOS) | 2.4.1 |
| Developer | Second Phone Number Inc |

<!-- SECTION: Summary -->
## What is AI Line: Second Phone Number?

AI Line provides users with a dedicated US-based second phone number to manage calls and text messages (SMS/MMS) while keeping their primary number private. The app is marketed toward professionals and individuals seeking to separate work and personal communication through Wi-Fi-based calling. It emphasizes privacy-first communication for tasks like client outreach and online sales.

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## Key Features

- **Dedicated US Second Number**: Provides a secondary phone number for making calls and sending text messages to protect personal privacy.
- **Wi-Fi Calling**: Enables crystal-clear voice calls over Wi-Fi connections.
- **SMS/MMS Management**: Supports sending and receiving text and multimedia messages through the secondary line.
- **International Calling**: Offers affordable calling options for international communication.

<!-- SECTION: Target Audience -->
## Who is it for?

Professionals, entrepreneurs, and individuals requiring a secondary, private phone number for work or personal use.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/ai-line-second-phone-number/id6743828840?uo=4)
- [Full Intelligence Report](https://marlvel.ai/intel-report/productivity/ai-line-second-phone-number)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/intel-report/productivity/ai-line-second-phone-number).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*