# Mandolin Tuner vs Polar Scope Align

The clearest difference is in-app purchases: Mandolin Tuner at none against Polar Scope Align's 3. Mandolin Tuner also leads on ratings volume (793 vs 171). Polar Scope Align's advantage is review sentiment (91% vs 60%) and update cadence (every 2 months vs every 16 months). On price, ads and device support there is nothing between them.

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

Polar Scope Align holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 793 and 171 respectively. Written reviews point the same way: 60% of Mandolin Tuner's written reviews are positive against 91% of Polar Scope Align's.

Mandolin Tuner ships an update every 16 months, Polar Scope Align every 2 months. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Mandolin Tuner | Polar Scope Align |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (793 ratings)](https://appshunter.io/ios/app/mandolin-tuner/id348630790/reviews) | **[4.7 (171 ratings)](https://appshunter.io/ios/app/polar-scope-align/id970157965/reviews)** |
| Number of ratings | **793** | 171 |
| Positive reviews | 59.8% of reviews | **91.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 16 months | **Every 2 months** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 30 MB | 23 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alvin Yu](https://appshunter.io/developer/310457194) | [Dimitrios Kechagias](https://appshunter.io/developer/970157964) |

## What reviewers say

### Mandolin Tuner

[App page](https://appshunter.io/ios/app/mandolin-tuner/id348630790)

This utility app provides accurate tuning notes for the mandolin, covering the standard G, D, A, and E strings. It's designed to help musicians quickly and easily achieve the correct pitch for their instrument.

**Highlights:** Plays tuning notes, Standard mandolin tuning (G D A E), Easy to use

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

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and easy to use
- 🚀 Straightforward and effective
- 💡 Convenient for quick tuning
- 👍 Works well for the task
- 👍 Accurate tuning

**What reviewers complain about**

- 🐛 Ads covering the buttons
- 🐛 Buttons too small and hard to press
- 🐛 Doesn't work or provide accurate tuning
- 🐛 Lacks features like alternate tunings
- 🐛 Doesn't display the note being played

**Reported bugs**

- App not working or providing inaccurate tuning
- Ads covering the buttons and causing accidental clicks
- Compatibility issues with newer devices

**Requested features**

- Option to turn off ads
- Larger buttons for easier use
- Support for alternate mandolin tunings
- Display the note being played


### 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 Mandolin Tuner free?

Mandolin Tuner 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.

### Which has better reviews, Mandolin Tuner or Polar Scope Align?

Polar Scope Align is rated higher. Mandolin Tuner averages 4.5 out of 5 from 793 ratings, while Polar Scope Align averages 4.7 from 171 ratings.

### Do Mandolin Tuner or Polar Scope Align have ads?

Both Mandolin Tuner and Polar Scope Align show ads.

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

Mandolin Tuner ships an update every 16 months, and Polar Scope Align every 2 months. Most recently, Mandolin Tuner was updated on October 15, 2026 and Polar Scope Align on October 14, 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.*