# ElPrognos vs Sourceful Energy

The clearest difference is update cadence: Sourceful Energy at every 9 days against ElPrognos's every 2 months. 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.

ElPrognos ships an update every 2 months, Sourceful Energy every 9 days. The most recent releases landed on September 1, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | ElPrognos | Sourceful Energy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 9 days** |
| Size | 6 MB | 44 MB |
| Requires iOS | 17.5 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [LineSpotting AB](https://appshunter.io/developer/1326519237) | [Sourceful Labs AB](https://appshunter.io/developer/1772929637) |

## What reviewers say

### ElPrognos

[App page](https://appshunter.io/ios/app/elprognos/id6475678956)

**In-app purchases:** none


### Sourceful Energy

[App page](https://appshunter.io/ios/app/sourceful-energy/id6736659172)

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

**In-app purchases:** none


## Frequently asked questions

### Is ElPrognos free?

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

### Is Sourceful Energy free?

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

### Do ElPrognos or Sourceful Energy have ads?

Neither ElPrognos nor Sourceful Energy shows ads.

### Which is updated more often, ElPrognos or Sourceful Energy?

ElPrognos ships an update every 2 months, and Sourceful Energy every 9 days. Most recently, ElPrognos was updated on September 1, 2026 and Sourceful Energy on September 10, 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.*