# PF vs Polar Scope Align

The clearest difference is in-app purchases: PF at none against Polar Scope Align's 3. PF also leads on ads (none vs shown). Polar Scope Align's advantage is update cadence (every 6 weeks vs every 11 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Polar Scope Align sells 3 one-off in-app purchases. PF asks for nothing beyond the download.

PF ships an update every 11 months, Polar Scope Align every 6 weeks. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | PF | Polar Scope Align |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (173 ratings)](https://appshunter.io/ios/app/polar-scope-align/id970157965/reviews)** |
| Number of ratings | — | **173** |
| Positive reviews | — | 91.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 11 months | **Every 6 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 8 MB | 24 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vixen Co.,Ltd.](https://appshunter.io/developer/536188843) | [Dimitrios Kechagias](https://appshunter.io/developer/970157964) |

## What reviewers say

### PF

[App page](https://appshunter.io/ios/app/pf-l-assist/id940306488)

**In-app purchases:** none


### Polar Scope Align

[App page](https://appshunter.io/ios/app/polar-scope-align/id970157965)

This app calculates the precise position of celestial poles in your telescope's polar scope reticle for accurate alignment. It supports a wide range of reticles and corrects for atmospheric refraction, offering precision even at lower latitudes. Features include night mode, moon phase, and astronomical databases.

**Highlights:** Polaris/Sigma Octantis position calculation, Atmospheric refraction correction, Reticle centering error correction, Supports numerous reticle types, Red-color night mode, Moon phase and astronomical databases

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip 1x | $0.99 | one-time |
| Tip 4x | $3.99 | one-time |
| Tip 10x | $9.99 | one-time |

**What reviewers like**

- 🎯 Extensive reticle options for various telescope mounts
- 👍 User-friendly and intuitive interface
- 🆓 Powerful free version with no popup ads
- 🔴 Red night vision mode preserves dark adaptation
- 📍 Accurate GPS-based location detection

**What reviewers complain about**

- 🐛 Inconsistent accuracy with metal mounts/tripods
- 📱 Font size too small for comfortable reading
- 🎯 Center dot in reticle obscures precise alignment
- 📍 Limited effectiveness for southern hemisphere (Sigma Octantis is dim)
- ❓ Steep learning curve for beginners without proper guidance

**Reported bugs**

- Date and time dial do not match correctly
- GMT and LST times appear to be switched
- App crashes or fails to initialize for some users
- Alignment accuracy varies inconsistently between sessions
- Location detection issues with cell tower vs GPS

**Requested features**

- Online video tutorials demonstrating all features
- Remove or reduce center dot size in reticle
- Larger, bolder font options for better readability
- Brighter star options for southern hemisphere alignment
- Smaller ad button or ad customization


## Frequently asked questions

### Is PF free?

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

### Is Polar Scope Align free?

Polar Scope Align is free to download, with in-app purchases available.

### Do PF or Polar Scope Align have ads?

Polar Scope Align shows ads; PF does not.

### Which is updated more often, PF or Polar Scope Align?

PF ships an update every 11 months, and Polar Scope Align every 6 weeks. Most recently, PF was updated on October 29, 2026 and Polar Scope Align on October 24, 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.*