# Duo Phone Number vs BondBoost

The clearest difference is in-app purchases: BondBoost at none against Duo Phone Number's 10. BondBoost also leads on ads (none vs shown). Duo Phone Number's advantage is iOS requirement (13.0 vs 18.6). On price, update cadence and device support there is nothing between them.

Both are free to download. Duo Phone Number sells 10 in-app purchases, starting at $0.99 per 7 days. BondBoost asks for nothing beyond the download.

Duo Phone Number ships an update fortnightly, BondBoost every 3 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | Duo Phone Number | BondBoost |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (385 ratings)](https://appshunter.io/ios/app/duo-phone-number-2nd-line/id1662423907/reviews)** | — |
| Number of ratings | **385** | — |
| Positive reviews | 55.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 108 MB | 10 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [JUSI PTE.LTD.](https://appshunter.io/developer/1659814629) | [Marc David](https://appshunter.io/developer/1678579655) |

## What reviewers say

### Duo Phone Number

[App page](https://appshunter.io/ios/app/duo-phone-number-2nd-line/id1662423907)

This app provides a private second phone number for calls and texts, allowing you to separate personal and work communications. It offers global calling and texting capabilities with various credit plans and an optional premium subscription for an ad-free experience.

**Highlights:** Private second phone number, Global calls and texts, Cost-efficient international rates, HD voice quality, Caller ID enabled, Two-way SMS/MMS, Ad-free premium option

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Week | $0.99 | per 7 days |
| Premium Week | $1.99 | per 7 days |
| Basic Month | $1.99 | per month |
| DuoPhone 1Number + FreeCredits | $2.99 | per 7 days |
| Premium Week | $3.99 | per 7 days |
| Premium Month | $3.99 | per month |
| DuoPhone 1Number + FreeCredits | $5.99 | per month |
| Premium Month | $7.99 | per month |
| Credit 100 | $1.99 | one-time |
| Credit 500 | $7.99 | one-time |

**What reviewers like**

- 👍 User-friendly interface
- 💬 Messaging and calling functionality
- 🎁 Free trial availability
- ⭐ Positive user experience for some users

**What reviewers complain about**

- 💰 Expensive pricing and hidden charges
- 🐛 Messages and verification codes not received
- 📵 Non-functional phone numbers
- 🚫 Deceptive billing practices
- 😤 Poor customer service and refund issues

**Reported bugs**

- Verification codes not arriving
- Messages failing to send or receive
- Phone numbers not working or unreachable
- Error 999 when attempting to use numbers
- SMS and call functionality non-operational despite purchasing credits

**Requested features**

- More free credits or coins
- Increased call allowances
- Better notification system for OTP codes
- Removal of excessive ads
- Improved number availability and validity


### BondBoost

[App page](https://appshunter.io/ios/app/bondboost/id6447713690)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Duo Phone Number free?

Duo Phone Number is free to download, with in-app purchases available.

### Is BondBoost free?

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

### Do Duo Phone Number or BondBoost have ads?

Duo Phone Number shows ads; BondBoost does not.

### Which is updated more often, Duo Phone Number or BondBoost?

Duo Phone Number ships an update fortnightly, and BondBoost every 3 weeks. Most recently, Duo Phone Number was updated on November 3, 2026 and BondBoost on November 3, 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.*