# Line2 vs Lab Scale

The clearest difference is rating: Line2 at 4.4 against Lab Scale's 3.3. Line2 also leads on ratings volume (20K vs 3) and review sentiment (21% vs 0%). Lab Scale's advantage is in-app purchases (none vs 13) and iOS requirement (12.0 vs 14.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Line2 sells 13 in-app purchases, starting at $9.99 per month. Lab Scale asks for nothing beyond the download.

Line2 holds the better App Store score, 4.4 against 3.3. That said, the two scores are not equally well evidenced: Line2 has 20K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 21% of Line2's written reviews are positive against 0% of Lab Scale's.

Line2 ships an update monthly, Lab Scale fortnightly. The most recent releases landed on October 30, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Line2 | Lab Scale |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (20K ratings)](https://appshunter.io/ios/app/line2-second-phone-number/id319185557/reviews)** | [3.3 (3 ratings)](https://appshunter.io/ios/app/lab-scale-smartlogs-pro/id1530607491/reviews) |
| Number of ratings | **20K** | 3 |
| Positive reviews | **20.7% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#178** | — |
| Size | 48 MB | 14 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [J2 Web Services, Inc.](https://appshunter.io/developer/1496258416) | [ReFleX Wireless Inc.](https://appshunter.io/developer/666581212) |

## What reviewers say

### Line2

[App page](https://appshunter.io/ios/app/line2-second-phone-number/id319185557)

**Currently charting:** #178 Top Grossing · Productivity (US App Store)

This app provides a second phone number for calls and texts, enhancing privacy and communication. It offers features like call screening, blocking, and unlimited messaging over Wi-Fi, eliminating the need for cellular data.

**Highlights:** Second phone number, Unlimited calls and texts, Call screening and blocking, Voicemail access, Group messaging, Wi-Fi calling and texting

**Features:** Siri integration, Vision Pro support

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Personal Unlimited Monthly | $9.99 | per month |
| Monthly subscription | $10.99 | per month |
| Personal Unlimited Monthly | $11.99 | per month |
| Line2 Standard Mobile Monthly | $15.99 | per month |
| Mobile Starter Monthly | $15.99 | per month |
| Line2 Standard | $16.99 | per month |
| Mobile Starter Monthly | $17.99 | per month |
| Personal Unlimited Annual | $95.90 | per year |
| auto-renewing annual standard | $114.99 | per year |
| Line2 - Annual | $163.99 | per year |
| Line2 Standard Mobile Annual | $164.99 | per year |
| Mobile Starter Annual | $164.99 | per year |
| Mobile Starter Annual | $179.99 | per year |

**What reviewers like**

- 🚀 Convenient second line
- 📞 Reliable call quality
- 💬 Good texting functionality
- 🔒 Secure and private
- 🌐 Works well for international users

**What reviewers complain about**

- 🐛 Frequent app crashes and bugs
- 📞 Poor call quality and dropped calls
- 💬 Unreliable text messaging
- 🕰️ Slow app performance
- 🤖 Unhelpful and unresponsive customer support

**Reported bugs**

- Calls not ringing on device
- Inability to retrieve voicemails
- Contacts and call history not syncing properly
- Unexpected app log-outs
- Texting issues and message delivery failures

**Requested features**

- Ability to customize ringtones
- Support for video and image sharing in messages
- Separate contact list for Line2 number
- Apple Watch app integration
- Improved call handling and forwarding options


### Lab Scale

[App page](https://appshunter.io/ios/app/lab-scale-smartlogs-pro/id1530607491)

This app works with a smart food scale to record weight measurements. It offers manual logging or automated recording at set intervals. It's particularly useful for remote science education.

**Highlights:** Log weight readings, Manual logging, Interval/frequency logging, Compatible with Smart Food Scale, Useful for remote science classes

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

**In-app purchases:** none


## Frequently asked questions

### Is Line2 free?

Line2 is free to download, with in-app purchases available.

### Is Lab Scale free?

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

### Which has better reviews, Line2 or Lab Scale?

Line2 is rated higher. Line2 averages 4.4 out of 5 from 20K ratings, while Lab Scale averages 3.3 from 3 ratings.

### Do Line2 or Lab Scale have ads?

Neither Line2 nor Lab Scale shows ads.

### Which is updated more often, Line2 or Lab Scale?

Line2 ships an update monthly, and Lab Scale fortnightly. Most recently, Line2 was updated on October 30, 2026 and Lab Scale on October 21, 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.*