# EcoFast vs BigBang Solar

The clearest difference is update cadence: BigBang Solar at weekly against EcoFast's monthly. EcoFast's advantage is iOS requirement (12.0 vs 15.5). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

EcoFast ships an update monthly, BigBang Solar weekly. The most recent releases landed on October 7, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | EcoFast | BigBang Solar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bigbang-solar/id6776689002/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | — | Free |
| Size | 65 MB | 28 MB |
| Requires iOS | **12.0** | 15.5 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RED & BLUE TECHNOLOGY COMPANY LIMITED](https://appshunter.io/developer/1748357089) | [BIGBANG SOLAR COMPANY LIMITED](https://appshunter.io/developer/6776689004) |

## What reviewers say

### EcoFast

[App page](https://appshunter.io/ios/app/ecofast/id6503202874)

**Features:** macOS Compatibility

**In-app purchases:** none


### BigBang Solar

[App page](https://appshunter.io/ios/app/bigbang-solar/id6776689002)

This comprehensive solar energy platform connects customers, agents, and technical teams. Browse solar products, get quotes, find authorized dealers, and manage projects. It offers a dual-language interface and separate experiences for customers and agents.

**Highlights:** Browse solar product catalog, Get solar system quotes, Find authorized dealers, Verify product authenticity, Manage customer leads, Track installation projects, Dual-language interface

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

**In-app purchases:** none


## Frequently asked questions

### Is EcoFast free?

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

### Is BigBang Solar free?

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

### Do EcoFast or BigBang Solar have ads?

Neither EcoFast nor BigBang Solar shows ads.

### Which is updated more often, EcoFast or BigBang Solar?

EcoFast ships an update monthly, and BigBang Solar weekly. Most recently, EcoFast was updated on October 7, 2026 and BigBang Solar on October 20, 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.*