AlterPhone: Number & eSIM

MicroApps Venture

In-app purchases

About this app

AlterPhone — Second Phone Number + Travel eSIM

Two travel essentials in one app. Get a real second phone number for calls and SMS, and buy prepaid eSIM data packages for over 200 countries. No SIM swap, no contract, no paperwork — just tap to buy, tap to use.

📞 Second phone numbers

Pick a real local number in the United States, United Kingdom, Canada, France, Romania, Australia, Poland, and more. Use it for work, online listings, travel, dating, or verification — and keep your personal line private.

Real local numbers — receive calls on Wi-Fi or mobile data
HD voice calls with crystal-clear quality over modern VoIP
Live call transcription — see what's being said as it's said, in your language
Incoming calls are always free and unlimited — no minute caps, ever
Outbound calling to 200+ destinations, pay-as-you-go per minute
Transparent per-minute pricing shown before you buy, for every country
Monthly subscription — cancel anytime, no long commitments
Try our demo call before you buy a number

🌍 Travel eSIMs

Stay connected the moment you land. Buy a prepaid data plan for 200+ countries and install it in seconds — no physical SIM swap, no SIM-vending kiosks, no roaming bill surprise.

Country, regional, and global data plans
Instant eSIM activation — scan the QR code once and you're online
Flexible packages from 1 GB / 7 days up to 20+ GB / 30 days
Top up anytime — add data and extend validity on an existing eSIM with one tap
Works alongside your primary SIM — keep your home number active while traveling
Clear USD pricing, no hidden fees

✨ Why AlterPhone

Privacy first — give out an AlterPhone number instead of your personal one
One app for travel — local phone number abroad and mobile data, in the same place
Fair pricing — pay only for what you actually use on calls; eSIMs priced to save you money vs. airport SIMs and hotel Wi-Fi
Secure — encrypted signalling, verified webhooks, strict data handling
No surprises — every price shown before you pay, every plan renewable or cancellable on your terms

Perfect for:
- Frequent travelers and digital nomads
- Freelancers and small businesses needing a dedicated work line
- Online sellers, hosts, and dating-app users who don't want to expose their real number
- International calls to family and friends abroad
- Anyone who needs a phone number for SMS verification without giving up their primary

How does it work?

1. Sign in with Google/Phone in one tap
2. Browse countries and pick a number or an eSIM package
3. Pay securely through Google Play
4. Start calling, texting, or scan your eSIM QR — you're live in seconds


Please note:

Phone numbers are subject to availability. Carriers and regulators can change which countries, number types, and area codes are offered at any time, and specific numbers may be unavailable even when a country is listed. If a country you need isn't shown in the app, it's currently out of stock with our carrier partners — please check back later.

Support & legal

Questions, feedback, or account help? Reach us at [e-mail].

Terms: https://alterphone.app/terms Privacy Policy: https://alterphone.app/privacy

What’s new

Travel eSIMs are here! Buy a data plan for 200+ countries and install it in seconds — no physical SIM swap. Plus new number coverage for Romania, Australia, and Poland. Bug fixes and performance improvements.