Sideline
Stay private with a 2nd phone number
sideline.com Google Play App StoreUtilities / Phone Numbers & Telecom
- Monthly visits
- 202.6K
- Up43.3%MoMOct 2026
- Public revenue
- Undisclosed
- No public revenue evidence yet
- Entry price
- Free
- No monthly subscription pricing
- Launched
- 11y ago
- 2015-08-25 · Est.
Traffic
Marketing moves
Launches, search & content, referrals, promotionsLaunched on Google PlayLaunch
Get a second phone number for text messages and calls with premium call quality!
Oct 25, 2015 · 11y agoLaunch page
Launched on App StoreLaunch
Sideline gives you a second phone number for calling and texting—so you can stay connected without sharing your real number. Get the app today to keep your personal number private. Whether you're working, selling online, or just want more c
Aug 25, 2015 · 11y agoLaunch page
Store data
Get a second phone number for text messages and calls with premium call quality!
- Rating
- ★ 3.8062.9K ratings
- Install scale
- 5,000,000+Min 5M installs
- Price & IAP
- FreeIAP $0.99 - $129.99 per item
- First released
- 2015-10-25Store metadata
Better. Faster. More Reliable. That's our motto for every update. And in this release, performance updates make Sideline all of those things. If you're enjoying the app, please leave us a rating or review. Need help? Email us at: AndroidHelp@sideline.com
Sideline gives you a second phone number for calling and texting—so you can stay connected without sharing your real number. Get the app today to keep your personal number private. Whether you're working, selling online, or just want more control over who can reach you, Sideline makes it easy to separate your communications. FREQUENTLY ASKED QUESTIONS What is Sideline, and how does a second phone number work? Sideline is a second phone number app that lets you call and text from a separate number on your smartphone. Just download the Sideline app, and your Sideline number will work alongside your primary number, so you can keep personal and secondary communications separate without needing a second phone. Can I use Sideline for private texting and calling? Yes. Sideline is designed for private texting and calling, so you don't have to share your personal phone number with strangers and businesses. Use your second number for work, online selling, dating, or any situation where you want more privacy. Is Sideline reliable for calls and texts? Sideline uses your carrier's cellular network (not VoIP), which means your calls are clear and reliable—just like your regular phone number. You can send unlimited SMS and MMS messages and make calls with confidence. Can I choose or transfer my phone number? Yes. You can select a second phone number with an area code of your choice, or port (transfer) your existing number to Sideline. This makes it easy to keep a number you already use while gaining more privacy and features. Who is Sideline for? Sideline is for anyone who wants a second phone number to keep their personal number private and their communications organized—like professionals and business owners who don't want to carry a second phone, people buying and selling online who don't want to share their real number, freelancers who need to manage client communications—and anyone who values privacy and wants to control who can reach their real number. Do I need to provide a government-issued ID to create a Sideline account? No. You do not need to submit a government-issued ID to sign up for Sideline. Instead, you'll verify your account using two-factor authentication (2FA). Get a second phone number with an area code of your choice, send unlimited texts, and manage calls with powerful tools—all from one app. Sideline works over your carrier network (not VoIP), so your second number is as reliable as your first. Take control of your privacy and communication with Sideline. WHY SIDELINE? Protect Your Personal Number: - Get a second phone number for private calling and texting - Keep your real number separate and secure - Choose a local area code (or an area code of your choice) - Includes Caller ID and custom voicemail - Reliable cellular calling (not VoIP) Private Texting & Calling: - Send unlimited SMS and MMS messages - Use your second number for work, marketplace listings, or signups - Call and text without revealing your personal number - Access your number from multiple devices Stay in Control: - Auto-Reply sends instant responses when you miss a call - Custom voicemail with message transcripts - Port your existing number to Sideline - Block unwanted callers and manage contacts Smart Communication Tools: - Save and reuse frequently sent texts - Add notes to conversations and contacts - Stay organized without mixing personal and business messages USE SIDELINE FOR: - Private texting and calling - Work or business communications - Online buying and selling (Craigslist, Facebook Marketplace, etc.) - Protect your personal number DOWNLOAD SIDELINE TODAY LEGAL © 2026 Pinger, Inc. All rights reserved. The TextFree name, associated trademarks, and logos are trademarks of Pinger, Inc. or related entities. Terms of Service: https://www.sideline.com/terms-of-service/ Privacy Policy: https://www.sideline.com/privacy-policy/
- Rating
- ★ 4.3614.7K ratings
- New ratings last mo
- —
- Price & IAP
- FreeIAP data not synced
- First released
- 2015-08-25187 MB
Every Sideline update improves speed and reliability. This release includes minor bug fixes and enhancements. Thanks for using Sideline!
Sideline gives you a second phone number for calling and texting—so you can stay connected without sharing your real number. Get the app today to keep your personal number private. Whether you're working, selling online, or just want more control over who can reach you, Sideline makes it easy to separate your communications. Get a second phone number, send unlimited texts, and manage calls with powerful tools—all from one app. Sideline works over your carrier network (not VoIP), so your second number is as reliable as your first. Take control of your privacy and communication with Sideline. WHY SIDELINE? Protect Your Personal Number: - Get a second phone number for private calling and texting - Keep your real number separate and secure - Choose a local area code (or an area code of your choice) - Includes Caller ID and custom voicemail - Reliable cellular calling (not VoIP) Private Texting & Calling: - Send unlimited SMS and MMS messages - Use your second number for work, marketplace listings, or signups - Call and text without revealing your personal number - Access your number from multiple devices Stay in Control: - Auto-Reply sends instant responses when you miss a call - Custom voicemail with message transcripts - Port your existing number to Sideline - Block unwanted callers and manage contacts Smart Communication Tools: - Save and reuse frequently sent texts - Add notes to conversations and contacts - Stay organized without mixing personal and business messages USE SIDELINE FOR: - Private texting and calling - Work or business communications - Online buying and selling (Craigslist, Facebook Marketplace, etc.) - Protect your personal number FREQUENTLY ASKED QUESTIONS What is Sideline, and how does a second phone number work? Sideline is a second phone number app that lets you call and text from a separate number on your smartphone. Just download the Sideline app, and your Sideline number will work alongside your primary number, so you can keep personal and secondary communications separate without needing a second phone. Can I use Sideline for private texting and calling? Yes. Sideline is designed for private texting and calling, so you don't have to share your personal phone number with strangers and businesses. Use your second number for work, online selling, dating, or any situation where you want more privacy. Is Sideline reliable for calls and texts? Sideline uses your carrier's cellular network (not VoIP), which means your calls are clear and reliable—just like your regular phone number. You can send unlimited SMS and MMS messages and make calls with confidence. Can I choose or transfer my phone number? Yes. You can select a second phone number with an area code of your choice, or port (transfer) your existing number to Sideline. This makes it easy to keep a number you already use while gaining more privacy and features. Who is Sideline for? Sideline is for anyone who wants a second phone number to keep their personal number private and their communications organized—like professionals and business owners who don't want to carry a second phone, people buying and selling online who don't want to share their real number, freelancers who need to manage client communications—and anyone who values privacy and wants to control who can reach their real number. Do I need to provide a government-issued ID to create a Sideline account? No. You do not need to submit a government-issued ID to sign up for Sideline. Instead, you'll verify your account using two-factor authentication (2FA). DOWNLOAD SIDELINE TODAY Get a second phone number for private texting and calling. Stay connected—without giving out your personal number. LEGAL © 2026 Pinger, Inc. All rights reserved. The TextFree name, associated trademarks, and logos are trademarks of Pinger, Inc. or related entities. Terms of Service: https://www.sideline.com/terms-of-service/ Privacy Policy: https://www.sideline.com/privacy-policy/
Store assets, rating histograms, install tiers, and screenshots are synced from Apple App Store, Google Play, and Chrome Web Store.
Traffic sources
Traffic breakdown
Channels
- Direct86%
- Organic Search8%
- Other6%
Countries
- United States99%
Search
Domain authority —Domain registered 2001-06-01
| Keyword | Monthly volume |
|---|---|
| sideline | 13K |
| sideline messaging login | 650 |
| online second phone number | 230 |
| sideline. app | 220 |
| what's my google sideline number | — |
Traffic data: Vaneform
Pricing
Public pricing: FreeRaw source text; structured plans are extracted after website capture.
Pages & changes
Key pages
Weekly snapshotsChanges
No pricing, plan, or positioning changes detected since tracking started.
Design
Minimal Monochrome (Light canvas, airy density) featuring centered headline + cta layout and photography / live video visuals.
First-screen preview · click to zoom
First-screen pitch & conversion flow
“Stay private with a 2nd phone number”
Centered Headline + CTA hero structure paired with download app / install extension CTA and no explicit trust bar.
Conversion path: Centered Headline + CTA + Photography / Live Video → Download App / Install Extension
- Pain Relief & Replacement
Palette · click to copy
- Typography
- 7.0
- Color & Contrast
- 7.0
- Layout & Spacing
- 7.0
- Craft & Polish
- 7.0
- Distinctiveness
- 5.0
Structure
- Fonts
- Arial
- Hero layout
- Centered Headline + CTA
- Primary visual
- Photography / Live Video
- Conversion CTA
- Download App / Install Extension
- Social proof
- No Explicit Trust Bar
- Navigation
- Full-Width Top Bar
- Theme & density
- Light · Airy
- Corners & depth
- Small Radius · Hairline borders
Preview full AI design brief (includes :root CSS variables & layout rules)Style tokens only; never copy brand names, logos, copy, or images
# Design Brief: Minimal Monochrome
Monochrome palette with a single accent color, hairline dividers, and generous whitespace.
## Design Tokens
```css
:root {
--background: #ffffff;
--surface: #f2f2f4;
--foreground: #0c0c0b;
--muted-foreground: #70736b;
--accent: #00b744;
--radius: 4px;
--font-heading: "Arial", ui-sans-serif, system-ui, sans-serif;
--font-body: "Arial", ui-sans-serif, system-ui, sans-serif;
}
```
Color area ratio: Background #FFFFFF (~73%) · Surface #F2F2F4 (~4%) · Text #0C0C0B (~6%) · Muted Text #70736B (~10%) · Accent #00B744 (~7%). Background and surface dominate the canvas; reserve the accent color for primary buttons and active states.
## Layout & Conversion Structure
- Hero layout: Centered Headline + CTA
- Navigation: Full-Width Top Bar
- Theme & density: Light · Airy
- Border radius & elevation: Small Radius; no drop shadows—separate layers with hairline borders and whitespace
- Primary visual medium: Photography / Live Video
- Conversion CTA: Download App / Install Extension
- Headline hook: Pain Relief & Replacement
- Spatial layout notes: Centered Headline + CTA hero structure paired with download app / install extension CTA and no explicit trust bar.
- Visual summary: Minimal Monochrome (Light canvas, airy density) featuring centered headline + cta layout and photography / live video visuals.
## Avoid
- Multi-stop neon gradients
- Heavy drop shadows
- More than one competing accent color
Implement the UI following the design tokens and layout specifications above: use only these color variables, and reserve the accent color strictly for primary actions and active states. Adopt only this visual style—never copy any reference product’s brand name, logo, copy, or imagery.
Questions & evidence
- How much website traffic does Sideline get?
- Vaneform estimates 202.6K website visits in 2026-10. Visits can include repeat visits; this estimate measures web traffic separately from paying customers or revenue.Source
- What is Sideline and what platforms does it support?
- Sideline is catalogued under Phone Numbers & Telecom: Stay private with a 2nd phone number. Supported platforms: Mobile App.
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