Second‑Line App Comparison
2ndLine vs Phoner: Budget Burners or Real Business Tools?

Looking for the best second phone number app? Two names dominate the budget end of the market—2ndLine and Phoner. Both promise free or low‑cost calls and texts, but frequent number recycling, patchy support, and VoIP glitches raise a critical question: are they just burner toys, or can they function as real business tools? In this 1500‑word deep dive we unpack every angle—features, pricing, privacy, and long‑term reliability—and show why many professionals eventually graduate to ChatOdyssey Phone Relay for rock‑solid masking plus unlimited email relay.
Why Second‑Line Apps Matter
Whether you’re flipping sneakers on Facebook Marketplace, registering for crypto exchanges, or scaling a side hustle, exposing your personal number is risky. Spam calls, SIM‑swap threats, and inevitable data leaks make a compelling case for a disposable or compartmentalized phone number. Services like 2ndLine (born from TextNow’s ad‑supported network) and Phoner (from Appsverse) lower the barrier to entry by offering cloud numbers you can spin up in minutes. Yet, as we’ll see, the convenience tax arrives later—in the form of unreliable delivery, surprise outages, and opaque customer support. If your livelihood depends on phone reachability, those hidden costs quickly eclipse any monthly savings.
2ndLine Overview
2ndLine is a spin‑off of TextNow’s popular free VoIP platform. Available only on Android, it assigns a U.S. or Canadian number and delivers unlimited domestic texting and calling—if you accept full‑screen ads and periodic pop‑ups. Users on forums such as Slashdot note that “free” really means ad impressions plus occasional upsells for voicemail transcriptions or international credits. Perhaps the biggest caveat: inactivity triggers number recycling. Skip a couple weeks of usage and your number can silently be reassigned, potentially exposing 2FA codes or personal contacts to the next owner. Support? A ticket queue with multi‑day turnaround, according to reviews on the Hushed blog.
Phoner Overview
Phoner targets both iOS and Android users with a freemium model: a small bundle of trial credits gets you started; afterwards, you buy credit packs or a $9.99 subscription for a permanent number. Multiple numbers per account, call recording, and spam lookup tools cater to power users. Because you’re paying, Phoner keeps ads minimal and won’t claw back your number as long as the subscription is active. Reviews on the LinkedIn tech column praise its intuitive UI but critique the misleading “free” marketing—heavy callers burn through credits fast, making Phoner pricier than advertised.
Feature‑by‑Feature Breakdown
Feature | 2ndLine | Phoner | ChatOdyssey Phone Relay |
---|---|---|---|
Platform Support | Android only | iOS & Android | iOS, Android, Web |
Domestic Calling/SMS | Unlimited US/CA (ad‑supported) | Credit‑based or unlimited on sub | Unlimited with encrypted relay |
Number Recycling | Yes after inactivity | No (while subscribed) | Never (reserved) |
Advanced Tools | None | Call recording, spam lookup | Masking, unlimited email relay, API |
Starting Price | Free (ads) | Free trial, then credits/$9.99 | Free trial, then $4.99/mo |
Pricing Explained
2ndLine wins on sticker price: zero dollars. But remember, you pay with attention—ads crowd the interface, and you may shell out for international credits. Plus, lost business from a recycled number isn’t free. Phoner fronts as free yet converts quickly: after the trial, outgoing calls and SMS consume credits. Heavy users will gravitate toward the $9.99 monthly “Premium” plan, which still limits international minutes. In contrast, ChatOdyssey Phone Relay keeps it simple—after a generous free trial you pay $4.99/month for unlimited encrypted relay and a reserved U.S. number that never recycles.
Real‑World Use Cases
Dating Safety
On Tinder or Bumble, anonymity trumps uptime. 2ndLine’s free nature makes it ideal for quick number swaps, but ghosted matches often report delayed text delivery. Phoner’s stability fares better for phone calls before that first coffee. ChatOdyssey? Overkill unless you’re a high‑profile individual who really can’t risk a leak.
Freelancing & Consulting
Client‑facing freelancers need voicemail that doesn’t vanish. Phoner offers call recording (handy for requirements capture) yet still throttles high‑volume SMS leads. Many consultants start here, but when their inbox fills with 2FA codes and contract calls, they upgrade to ChatOdyssey for its guaranteed number ownership and email alias bundle.
Crypto & Fintech
Exchanges ban known VoIP ranges; 2ndLine numbers are notorious for failing Coinbase verification. Phoner’s paid numbers pass more often—until they’re recycled. ChatOdyssey’s carrier‑grade routing and static numbering make it the safest bet for HODLers protecting multi‑sig wallets.
Established Businesses
If every missed call means lost revenue, ad‑supported apps simply won’t cut it. Business users cite 99.99% uptime and 24/7 support as table stakes—benefits outside 2ndLine’s and Phoner’s scope. ChatOdyssey meets those expectations with SLA‑backed infrastructure, TLS‑encrypted trunking, and free unlimited email relays for custom @brand.chat addresses.
Privacy & Security Check
Data Collection: 2ndLine profits from advertising IDs and usage analytics; Phoner collects metadata for billing and spam lookup. ChatOdyssey operates on a subscription model—no ads, no selling of user behavior. Encryption: Neither 2ndLine nor Phoner offers end‑to‑end encryption. Messages traverse public VoIP trunks. ChatOdyssey relays calls and SMS through an encrypted gateway, shielding content from interception. Number Persistence: 2ndLine’s recycling is a hidden threat to 2FA. Phoner keeps numbers as long as you pay. ChatOdyssey reserves your number permanently—even if you pause your subscription, you can port out.
Final Verdict
For college students or casual sellers, 2ndLine’s price (free) is irresistible—just accept occasional downtime and ads. Semi‑pro hustlers will prefer Phoner’s cleaner interface and richer toolbox, assuming they budget for credits. But when your livelihood or personal security hangs on never missing a call, the math shifts. The $4.99 ChatOdyssey Phone Relay subscription buys peace of mind: a static, truly private number, unlimited email relay, and responsive support. Bottom line? 2ndLine and Phoner are great budget burners; serious users eventually graduate to ChatOdyssey.