# PerfectLine vs Calm Golf

The clearest difference is ads: Calm Golf at none against PerfectLine's shown. PerfectLine's advantage is update cadence (every 9 days vs every 4 months). 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 Calm Golf sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

PerfectLine ships an update every 9 days, Calm Golf every 4 months. Both last shipped on October 30, 2026.

## The numbers

| Metric | PerfectLine | Calm Golf |
| --- | --- | --- |
| 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 | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 9 days** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 115 MB | 7 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [LineMatics Inc.](https://appshunter.io/developer/1688668080) | [Gordon Thomson](https://appshunter.io/developer/1460719625) |

## 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 |


### Calm Golf

[App page](https://appshunter.io/ios/app/calm-golf/id6754047227)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Calm Golf | $5.99 | one-time |


## Frequently asked questions

### Is PerfectLine free?

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

### Is Calm Golf free?

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

### Do PerfectLine or Calm Golf have ads?

PerfectLine shows ads; Calm Golf does not.

### Which is updated more often, PerfectLine or Calm Golf?

PerfectLine ships an update every 9 days, and Calm Golf every 4 months. Most recently, PerfectLine was updated on October 30, 2026 and Calm Golf on October 30, 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.*