# iSolarFlow vs Ener Pro

iSolarFlow and Ener Pro are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

iSolarFlow ships an update every 2 months, Ener Pro every 5 weeks. The most recent releases landed on October 10, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | iSolarFlow | Ener Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Size | 220 MB | 60 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hiconics Eco-Energy Technology Co.,Ltd.](https://appshunter.io/developer/1766064077) | [刚 徐](https://appshunter.io/developer/6779306297) |

## What reviewers say

### iSolarFlow

[App page](https://appshunter.io/ios/app/isolarflow/id6761892115)

**In-app purchases:** none


### Ener Pro

[App page](https://appshunter.io/ios/app/ener-pro/id6782823326)

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

**In-app purchases:** none


## Frequently asked questions

### Is iSolarFlow free?

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

### Is Ener Pro free?

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

### Do iSolarFlow or Ener Pro have ads?

Neither iSolarFlow nor Ener Pro shows ads.

### Which is updated more often, iSolarFlow or Ener Pro?

iSolarFlow ships an update every 2 months, and Ener Pro every 5 weeks. Most recently, iSolarFlow was updated on October 10, 2026 and Ener Pro on September 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.*