By Olivia Grant · App reviews · 2026-09-02 · 7 min read
People rarely search for a "Dingtone alternative" or a "2ndLine alternative" out of boredom. They search because they hit a wall: the app assumes you live in the US or Canada, the credit or ad model is fiddly, or the number they got won't behave the way they need on WhatsApp. If that's you — and you're reading this from Lagos, Karachi, Delhi or anywhere the app store doesn't quite treat you as the intended customer — this comparison is written for you.
I'll be straight about what Dingtone and 2ndLine are good at, then show where G100 fits as a replacement. No invented numbers, no fake ratings — only what I can stand behind.
Dingtone and 2ndLine are competent second-number apps for people inside the US and Canada. If that describes you and you're happy topping up credits or living with ads, there's no urgent reason to move. If you're outside that region, or your real goal is a US number that WhatsApp will accept, G100 is the more direct fit: available worldwide, WhatsApp-ready, and a flat $1.95/month. One caveat sits at the end — read it before you decide.
Both are established second-line apps aimed squarely at the US and Canada market. They give you an extra number for calls and texts without a second SIM, and both lean on credit- or ad/subscription-based monetisation — you earn or buy credits, or you watch ads, or you pay for a plan, and calling and texting draw down from that.
For their home audience that model works. A US-based user who wants a throwaway line for dating, classifieds or a side hustle can get one running in minutes. The apps are mature, the calling is reliable, and the credit systems, while a little busy, do the job.
The friction shows up for everyone else. If you're buying from India, Nigeria or Pakistan, these apps aren't built with you as the target buyer — number availability, payment, and support all assume a North American user. And neither one is positioned as a WhatsApp Business tool. You might get a number that happens to register, or you might not; it isn't the thing they're selling. For a lot of the people searching for an alternative, those two gaps are the whole reason they're searching.
G100 is a US-registered app that sells one thing clearly: a dedicated US or Canada number that's WhatsApp-ready, buyable from anywhere in the world with no KYC, at a flat $1.95/month. Calls, incoming SMS and WhatsApp sit in a single dashboard you can open in the browser or on mobile. Calls run $0.03/min, the number receives SMS and OTP codes, and there's an optional WhatsApp Business Cloud API add-on for $10/month if you want the official API rather than the app. Billing is pay-as-you-go in USD via Stripe.
Where it separates from Dingtone and 2ndLine isn't polish or track record — it's reach and intent. G100 is designed for the buyer those apps overlook, and it treats WhatsApp registration as a headline feature rather than a happy accident. The flat fee also means you're not doing mental math on credits every time you call.
The honest gap: outbound SMS sending isn't live yet. You can receive texts and codes, take and place calls, and run WhatsApp — but you can't fire off a plain SMS today. For WhatsApp, OTP capture and calling, that's a non-issue. If your use case is specifically texting people over SMS, it's a real limitation, and I'd rather you know now.
Pros
Cons
| G100 | Dingtone / 2ndLine | |
|---|---|---|
| Available to users outside the US? | Yes — buyable from anywhere, no KYC | US/Canada-focused; not aimed at buyers abroad |
| Price model | Flat $1.95/mo, pay-as-you-go; calls $0.03/min | Credit- or ad/subscription-based |
| WhatsApp-ready? | Yes — US/Canada numbers register on WhatsApp; optional Cloud API $10/mo | Not positioned for WhatsApp Business |
| Calls + SMS + WhatsApp in one dashboard? | Yes (SMS receiving today; sending not live yet) | Calls + SMS; no WhatsApp layer |
Stay with Dingtone or 2ndLine if you live in the US or Canada, you're used to the credit or ad model, and you mainly want a second line for calls and texts at home. They're proven at that, and switching would buy you nothing.
Pick G100 if you're outside the US and struggle to buy from those apps, or if a WhatsApp-ready number is the actual reason you want a second line. The flat $1.95 and the single dashboard for calls, WhatsApp and incoming SMS make it the practical choice for someone in India, Nigeria or Pakistan who needs a US number WhatsApp will accept. Just confirm you don't need outbound SMS yet.
Worth a quick mention: if you've also looked at Google Voice or TextNow, both are effectively US and North-America-only, so they run into the same wall for buyers abroad.
None of these apps is bad. Dingtone and 2ndLine are built for a market they serve well. The deciding questions are just narrower than the ratings suggest: can you buy it where you live, and does it do WhatsApp? On those two, G100 is the one I'd hand to a reader outside the US — while giving the incumbents full credit for being the longer-running products on their own turf.
Why look for a Dingtone or 2ndLine alternative if you're outside the US?
Dingtone and 2ndLine are second-number apps built around US and Canada users, and they lean on credit-, ad- or subscription-based models. That's fine if you live there. If you're buying from India, Nigeria or Pakistan and mainly want a US number that registers on WhatsApp, those apps aren't aimed at you. G100 can be bought from anywhere in the world with no KYC, which is the main reason people switch.
Does G100 work with WhatsApp Business?
Yes. G100's dedicated US and Canada numbers are WhatsApp-ready and can receive the Meta verification code. G100 also offers the official WhatsApp Business Cloud API as an optional $10/month add-on if you want the API rather than the app.
How much does G100 cost compared to credit-based apps?
G100 is a flat $1.95/month, pay-as-you-go, billed in USD via Stripe, with calls at $0.03/min. Credit- and ad-based apps like Dingtone and 2ndLine work differently — you top up or watch ads, and cost depends on usage — so a flat monthly fee is easier to predict.
Can I send SMS from G100 yet?
Not yet. G100 receives SMS and OTP codes and handles calls and WhatsApp today, but outbound SMS sending is not live. If sending plain text messages is essential right now, that's the one gap to weigh against G100's price and worldwide availability.
G100 is a flat $1.95/mo — calls, WhatsApp and incoming SMS in one dashboard. See the full breakdown on the pricing page.
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