# Second Phone Number, 2nd Line vs Fullbox.io

The clearest difference is in-app purchases: Fullbox.io at none against Second Phone Number, 2nd Line's 20. Fullbox.io also leads on iOS requirement (13.0 vs 18.0). Second Phone Number, 2nd Line's advantage is update cadence (fortnightly vs every 5 weeks) and chart position (#143 vs unranked). On price, ads and device support there is nothing between them.

Both are free to download. Second Phone Number, 2nd Line sells 19 in-app purchases, starting at $4.99 per 7 days. Fullbox.io asks for nothing beyond the download.

Second Phone Number, 2nd Line ships an update fortnightly, Fullbox.io every 5 weeks. The most recent releases landed on October 16, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Second Phone Number, 2nd Line | Fullbox.io |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (889 ratings)](https://appshunter.io/ios/app/second-phone-number-2nd-line/id6470302849/reviews)** | — |
| Number of ratings | **889** | — |
| Positive reviews | 63.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#143** | — |
| Size | 118 MB | 46 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Municorn Limited](https://appshunter.io/developer/380984285) | [Eirene AI LLC](https://appshunter.io/developer/1851610569) |

## What reviewers say

### Second Phone Number, 2nd Line

[App page](https://appshunter.io/ios/app/second-phone-number-2nd-line/id6470302849)

**Currently charting:** #143 Top Grossing · Utilities (US App Store)

Obtain a secondary phone number for calls and texts without needing an extra SIM card. Use it for personal or professional purposes, including online marketplaces, dating, and business, while keeping your primary number private. Make affordable international calls and send SMS/MMS with this virtual line.

**Highlights:** Obtain a secondary phone number, Make calls and send texts, No additional SIM card needed, Maintain privacy, Affordable international calls, Send SMS/MMS

**Features:** Siri integration

**In-app purchases (19)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Second Phone Premium (week) | $4.99 | per 7 days |
| Save your number | $4.99 | per 7 days |
| Second Phone Premium (monthly) | $8.99 | per month |
| Second Phone Premium (week) | $9.99 | per 7 days |
| Second Phone Premium (week) | $9.99 | per 7 days |
| Second Phone Premium (week) | $14.99 | per 7 days |
| Second Phone Number: Call Text | $14.99 | per 7 days |
| Second Phone Save Number 1yr | $23.99 | per year |
| Second Phone Premium (monthly) | $24.99 | per month |
| Monthly Trial | $29.99 | per month |
| Second Phone Premium (month) | $29.99 | per month |
| Second Phone Premium (quarter) | $49.99 | per 3 months |
| Second Phone Premium (yearly) | $49.99 | per year |
| Second Phone Premium (yearly) | $95.99 | per year |
| Yearly Plan 2026 | $95.99 | per year |
| Change number | $4.99 | one-time |
| Change Number 2+ | $7.99 | one-time |
| Change Number 3 | $14.99 | one-time |
| International Calls&SMS | $19.99 | one-time |

**What reviewers like**

- 🚀 Fast and easy setup
- 👍 Convenient and practical
- 🚀 Reliable and smooth performance
- 👍 Helpful customer service
- 🚀 Versatile and feature-rich

**What reviewers complain about**

- 🐛 Occasional crashes and bugs
- ⚠️ Unclear restrictions on app usage
- 💰 Subscription fees may be high for some users
- 🔒 Privacy and security concerns
- ⚠️ Limited number of available phone numbers

**Reported bugs**

- Inability to send/receive messages or make calls
- Crashes when trying to link contacts
- Verification codes not being delivered

**Requested features**

- Ability to change phone numbers more frequently
- Support for more social media and messaging apps
- Option to delete text message history
- Local phone number availability for international users


### Fullbox.io

[App page](https://appshunter.io/ios/app/fullboxio/id6761342821)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Second Phone Number, 2nd Line free?

Second Phone Number, 2nd Line is free to download, with in-app purchases available.

### Is Fullbox.io free?

Fullbox.io is free to download, with no in-app purchases.

### Do Second Phone Number, 2nd Line or Fullbox.io have ads?

Neither Second Phone Number, 2nd Line nor Fullbox.io shows ads.

### Which is updated more often, Second Phone Number, 2nd Line or Fullbox.io?

Second Phone Number, 2nd Line ships an update fortnightly, and Fullbox.io every 5 weeks. Most recently, Second Phone Number, 2nd Line was updated on October 16, 2026 and Fullbox.io on September 28, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*