# SolarMeter sun energy planner vs Memony

The clearest difference is price: Memony at Free against SolarMeter sun energy planner's $2.99. Memony also leads on update cadence (every 2 months vs every 8 months). SolarMeter sun energy planner's advantage is in-app purchases (none vs 1) and chart position (#191 vs unranked). On ads and device support there is nothing between them.

Memony is free to download; SolarMeter sun energy planner costs $2.99 up front. Memony sells 1 one-off in-app purchase. SolarMeter sun energy planner asks for nothing beyond the download.

SolarMeter sun energy planner ships an update every 8 months, Memony every 2 months. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | SolarMeter sun energy planner | Memony |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.0 (9 ratings)](https://appshunter.io/ios/app/solarmeter-sun-energy-planner/id1047880363/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 months** |
| Monetization | Paid | — |
| Best chart rank | **#191** | — |
| Size | 46 MB | 7 MB |
| Requires iOS | **9.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [VisTech.Projects LLC](https://appshunter.io/developer/620969851) | [烨 钱](https://appshunter.io/developer/1783433461) |

## What reviewers say

### SolarMeter sun energy planner

[App page](https://appshunter.io/ios/app/solarmeter-sun-energy-planner/id1047880363)

**Currently charting:** #191 Top Paid · Productivity (US App Store)

Calculate, estimate, and visualize solar power and energy output for a specific location using your iPhone or iPad. This tool helps answer questions about sunlight availability, roof area needs, and potential energy bill changes after PV system installation.

**Highlights:** Real-time solar power calculation, Solar power and energy calculation for various periods, Offline statistical solar data, Automatic location search via GPS, Graph/Plot 2D data presentation, Roof tilt angle and area measurement

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

**In-app purchases:** none


### Memony

[App page](https://appshunter.io/ios/app/memony/id6739198281)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Quick Time-Setting Options | $0.99 | one-time |


## Frequently asked questions

### Is SolarMeter sun energy planner free?

SolarMeter sun energy planner costs $2.99, with no in-app purchases.

### Is Memony free?

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

### Do SolarMeter sun energy planner or Memony have ads?

Neither SolarMeter sun energy planner nor Memony shows ads.

### Which is updated more often, SolarMeter sun energy planner or Memony?

SolarMeter sun energy planner ships an update every 8 months, and Memony every 2 months. Most recently, SolarMeter sun energy planner was updated on November 6, 2026 and Memony 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.*