# PV Calculator vs Bricks Estimator

The clearest difference is update cadence: PV Calculator at every 8 months against Bricks Estimator's every 46 months. PV Calculator also leads on iOS requirement (12.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

PV Calculator costs $1.99 and Bricks Estimator $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

PV Calculator ships an update every 8 months, Bricks Estimator every 46 months. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | PV Calculator | Bricks Estimator |
| --- | --- | --- |
| Price | $1.99 | $1.99 |
| Rating | **[4.0 (13 ratings)](https://appshunter.io/ios/app/pv-calculator-off-grid/id1219643642/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 42.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 46 months |
| Monetization | Paid | — |
| Size | 15 MB | 1 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Cristinel Bontas](https://appshunter.io/developer/645866051) | [H3 Apps, LLC](https://appshunter.io/developer/598620927) |

## What reviewers say

### PV Calculator

[App page](https://appshunter.io/ios/app/pv-calculator-off-grid/id1219643642)

This tool helps you calculate the necessary components for an off-grid photovoltaic system. It guides you through determining power consumption, available sunlight, and sizing solar arrays and battery banks.

**Highlights:** Battery bank sizing, Solar panel wattage calculation, Charge controller sizing, Power consumption determination, Sun hours analysis

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

**In-app purchases:** none


### Bricks Estimator

[App page](https://appshunter.io/ios/app/bricks-estimator/id1564680407)

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

**In-app purchases:** none


## Frequently asked questions

### Is PV Calculator free?

PV Calculator costs $1.99, with no in-app purchases.

### Is Bricks Estimator free?

Bricks Estimator costs $1.99, with no in-app purchases.

### Do PV Calculator or Bricks Estimator have ads?

Neither PV Calculator nor Bricks Estimator shows ads.

### Which is updated more often, PV Calculator or Bricks Estimator?

PV Calculator ships an update every 8 months, and Bricks Estimator every 46 months. Most recently, PV Calculator was updated on October 24, 2026 and Bricks Estimator on October 8, 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.*