# Sideline vs SMSProxy

The clearest difference is rating: Sideline at 4.4 against SMSProxy's 3.7. Sideline also leads on ratings volume (15K vs 6) and review sentiment (35% vs 20%). SMSProxy's advantage is monetization model (free with in-app purchases vs subscription) and device support (4 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Sideline sells 10 in-app purchases, starting at $0.99 per month and SMSProxy sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Sideline holds the better App Store score, 4.4 against 3.7. That said, the two scores are not equally well evidenced: Sideline has 15K ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 35% of Sideline's written reviews are positive against 20% of SMSProxy's.

Sideline ships an update every 2 weeks, SMSProxy monthly. The most recent releases landed on September 24, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Sideline | SMSProxy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (15K ratings)](https://appshunter.io/ios/app/sideline-private-2nd-number/id1012032539/reviews)** | [3.7 (6 ratings)](https://appshunter.io/ios/app/smsproxy-temporary-num/id1635028152/reviews) |
| Number of ratings | **15K** | 6 |
| Positive reviews | **34.8% of reviews** | 20.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Subscription | **Free with in-app purchases** |
| Best chart rank | **#27** | — |
| Size | 155 MB | 12 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone | **iPhone, iPad, Mac, Vision Pro** |
| Age rating | 12+ | 4+ |
| Developer | [Pinger, Inc.](https://appshunter.io/developer/299102705) | [Alexandre Reol](https://appshunter.io/developer/1455118075) |

## What reviewers say

### Sideline

[App page](https://appshunter.io/ios/app/sideline-private-2nd-number/id1012032539)

**Currently charting:** #27 Top Grossing · Utilities (US App Store)

This app provides a dedicated second phone number for private texting and calling. It offers features like unlimited SMS/MMS, custom voicemail, and auto-reply to help manage communications and keep conversations organized across devices.

**Highlights:** Second phone number with local area code, Unlimited SMS, MMS, and text messages, Custom voicemail with transcripts, Auto-Reply for missed calls, Split number across multiple devices, Transfer existing phone numbers

**Features:** Siri integration

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sideline Standard EarlyAdopter | $0.99 | per month |
| Sideline Standard - Early User | $2.99 | per month |
| Voicemail to Text | $2.99 | per month |
| No Ads | $2.99 | per month |
| Sideline Subscription | $14.49 | per month |
| Sideline - Monthly plan | $14.49 | per month |
| Sideline Pro – Monthly Plan | $14.99 | per month |
| Sideline - 6-Month Plan | $69.99 | per 6 months |
| Sideline | $99.00 | per year |
| Sideline - Yearly Plan | $129.99 | per year |

**What reviewers like**

- 📞 Reliable call quality
- 💼 Useful for business/work
- 🔔 Customizable ringtones
- 📝 Convenient text messaging
- ⏱️ Efficient auto-reply feature

**What reviewers complain about**

- 🔥 Frequent app crashes
- 🔇 Poor call quality/dropped calls
- 🤖 Unreliable automated features
- 💰 Expensive subscription fees
- 🔍 Inability to manage contacts

**Reported bugs**

- Text messages not delivering properly
- Missed call notifications not working
- Billing and account management issues
- Compatibility problems with VPNs and other apps

**Requested features**

- Ability to separate business and personal contacts
- Web/desktop messaging functionality
- Apple Watch app integration
- Improved search and organization tools
- More customization options


### SMSProxy

[App page](https://appshunter.io/ios/app/smsproxy-temporary-num/id1635028152)

Get temporary phone numbers to receive SMS codes for online sign-ups and promotions. Protect your real number by using burner numbers on various websites and apps. No account creation is needed.

**Highlights:** Temporary/burner phone numbers, Receive SMS codes, Sign up for online services, No account required, Supports 100+ numbers, No tracking or analytics

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SMS Proxy Pro | $4.99 | per month |
| SMS Proxy Pro | $39.99 | per year |


## Frequently asked questions

### Is Sideline free?

Sideline is free to download, with in-app purchases available.

### Is SMSProxy free?

SMSProxy is free to download, with in-app purchases available.

### Which has better reviews, Sideline or SMSProxy?

Sideline is rated higher. Sideline averages 4.4 out of 5 from 15K ratings, while SMSProxy averages 3.7 from 6 ratings.

### Do Sideline or SMSProxy have ads?

Neither Sideline nor SMSProxy shows ads.

### Which is updated more often, Sideline or SMSProxy?

Sideline ships an update every 2 weeks, and SMSProxy monthly. Most recently, Sideline was updated on September 24, 2026 and SMSProxy on September 18, 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.*