# PerfectLine vs Live.τ

The clearest difference is review sentiment: PerfectLine at 88% against Live.τ's 40%. PerfectLine also leads on update cadence (every 9 days vs every 5 weeks). Live.τ's advantage is ads (none vs shown) and monetization model (free vs free with in-app purchases). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. PerfectLine sells 20 in-app purchases, starting at $9.90 per month and Live.τ sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

PerfectLine ships an update every 9 days, Live.τ every 5 weeks. The most recent releases landed on October 17, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | PerfectLine | Live.τ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (6 ratings)](https://appshunter.io/ios/app/perfectline-putting-simulator/id6476920264/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | **87.9% of reviews** | 40.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 9 days** | Every 5 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 115 MB | 72 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [LineMatics Inc.](https://appshunter.io/developer/1688668080) | [Nikolai Simonov](https://appshunter.io/developer/1783520825) |

## What reviewers say

### PerfectLine

[App page](https://appshunter.io/ios/app/perfectline-putting-simulator/id6476920264)

This app provides a real-time putting line guide for golfers. It uses your device's camera to scan the green and overlay a visual guide to help improve your putting accuracy.

**Highlights:** Real-time putting line guide, Scan green for putting line, Improves putting accuracy, Works on iPhone 12+ and iPad (2021+)

**In-app purchases (20)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium_Monthly | $9.90 | per month |
| Pro_Monthly | $19.90 | per month |
| Coach_monthly | $39.90 | per month |
| CoachMax_monthly | $79.90 | per month |
| Premium_Yearly | $99.00 | per year |
| Pro_Yearly | $199.00 | per year |
| Coach Yearly | $399.00 | per year |
| CoachMax Yearly | $799.00 | per year |
| $1 후원 | $1.00 | one-time |
| 100 Credits | $1.99 | one-time |
| 1-Day Membership (Premium) | $2.99 | one-time |
| $5 후원 | $5.00 | one-time |
| 1-Day Membership (Pro) | $5.99 | one-time |
| 550 Credits | $9.99 | one-time |
| $10 후원 | $10.00 | one-time |
| $20 후원 | $20.00 | one-time |
| 3300 Credits | $49.99 | one-time |
| $50 후원 | $50.00 | one-time |
| 10000 Credits | $99.99 | one-time |
| $100 후원 | $100.00 | one-time |


### Live.τ

[App page](https://appshunter.io/ios/app/live/id6746654589)

This app transforms a compatible watch into a real-time safety beacon for outdoor activities. It allows loved ones to follow your journey and receive instant SOS alerts in emergencies. Designed for endurance athletes and adventurers, it prioritizes privacy and battery efficiency.

**Highlights:** Live GPS tracking, Instant SOS alerts, Lightweight and battery friendly, Seamless Suunto watch integration, Privacy-respecting tracking

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Explorer | $4.99 | per month |
| Pioneer | $11.99 | per month |


## Frequently asked questions

### Is PerfectLine free?

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

### Is Live.τ free?

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

### Do PerfectLine or Live.τ have ads?

PerfectLine shows ads; Live.τ does not.

### Which is updated more often, PerfectLine or Live.τ?

PerfectLine ships an update every 9 days, and Live.τ every 5 weeks. Most recently, PerfectLine was updated on October 17, 2026 and Live.τ on September 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.*