# PV Optimizer & Solar compass vs TiltSync

The clearest difference is review sentiment: TiltSync at 100% against PV Optimizer & Solar compass's 54%. TiltSync also leads on rating (5.0 vs 4.5) and in-app purchases (none vs 1). PV Optimizer & Solar compass's advantage is ratings volume (247 vs 4). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. PV Optimizer & Solar compass sells 1 one-off in-app purchase. TiltSync asks for nothing beyond the download.

TiltSync holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: PV Optimizer & Solar compass has 247 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 54% of PV Optimizer & Solar compass's written reviews are positive against 100% of TiltSync's.

PV Optimizer & Solar compass ships an update every 2 months, TiltSync every 2 days. The most recent releases landed on October 13, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | PV Optimizer & Solar compass | TiltSync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (247 ratings)](https://appshunter.io/ios/app/pv-optimizer-and-solar-compass/id971828374/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/tiltsync/id6758175977/reviews)** |
| Number of ratings | **247** | 4 |
| Positive reviews | 53.6% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 5 MB | 25 MB |
| Requires iOS | **14.1** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Joao Caetano](https://appshunter.io/developer/828553753) | [Daniel Smith](https://appshunter.io/developer/1599414012) |

## What reviewers say

### PV Optimizer & Solar compass

[App page](https://appshunter.io/ios/app/pv-optimizer-and-solar-compass/id971828374)

Maximize your solar panel output with this tool. It guides you to adjust your panels' azimuth and tilt based on real-time solar data. The app also provides a solar compass and forecasts your potential monthly energy generation.

**Highlights:** Solar panel output maximization, Azimuth and tilt adjustment guidance, Real-time solar compass, Solar panel output forecast, Adjustable time frames for optimization

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $0.99 | one-time |

**What reviewers like**

- 👍 Works well once figured out
- 👍 Simple, reliable, practical
- 👍 Useful for PV panel inclination
- 👍 Great for RV and overland solar
- 👍 Awesome for maximizing solar power

**What reviewers complain about**

- 🐛 No instructions provided
- 🐛 Ads are annoying
- 🐛 Pop-up ads prevent use
- 🐛 Gyroscope not working
- 🐛 PV alignment not working

**Reported bugs**

- Guide feature doesn't show on opening page
- Pop-up ads do not close
- Error: iPhone gyroscope off
- Error: Downloading relevant data
- Graph scale breaks down for yearly output

**Requested features**

- More guidance and clarity
- Option for shorter time periods (day/week)
- Adjustment for time settings (night alignment)
- Loss calculation for incorrect orientation
- Option to reverse phone orientation


### TiltSync

[App page](https://appshunter.io/ios/app/tiltsync/id6758175977)

This tool uses your device's sensors to help you precisely align solar panels for maximum energy production. It offers multiple alignment views and optimization modes, providing real-time feedback and haptic guidance for professional results.

**Highlights:** Precision interface with compass and tilt indicator, Multiple alignment views (Dashboard, Tilt, Compass), Three optimization modes (Year-Round, Seasonal, Daily), Color-coded and haptic feedback for guidance, Offline functionality, Instant startup with cached GPS

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PV Optimizer & Solar compass free?

PV Optimizer & Solar compass is free to download, with in-app purchases available.

### Is TiltSync free?

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

### Which has better reviews, PV Optimizer & Solar compass or TiltSync?

TiltSync is rated higher. PV Optimizer & Solar compass averages 4.5 out of 5 from 247 ratings, while TiltSync averages 5.0 from 4 ratings.

### Do PV Optimizer & Solar compass or TiltSync have ads?

Neither PV Optimizer & Solar compass nor TiltSync shows ads.

### Which is updated more often, PV Optimizer & Solar compass or TiltSync?

PV Optimizer & Solar compass ships an update every 2 months, and TiltSync every 2 days. Most recently, PV Optimizer & Solar compass was updated on October 13, 2026 and TiltSync on September 29, 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.*