# Solar Panel Calculator Plus vs Sentiens

The clearest difference is price: Sentiens at Free against Solar Panel Calculator Plus's $2.99. Sentiens also leads on rating (5.0 vs 3.3) and update cadence (every 2 days vs every 47 months). Solar Panel Calculator Plus's advantage is ratings volume (23 vs 2) and iOS requirement (12.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

Sentiens is free to download; Solar Panel Calculator Plus costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Sentiens holds the better App Store score, 5.0 against 3.3. That said, the two scores are not equally well evidenced: Solar Panel Calculator Plus has 23 ratings behind it against 2, so its average is the more settled of the two.

Solar Panel Calculator Plus ships an update every 47 months, Sentiens every 2 days. The most recent releases landed on October 27, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Solar Panel Calculator Plus | Sentiens |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [3.3 (23 ratings)](https://appshunter.io/ios/app/solar-panel-calculator-plus/id1358184660/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/sentiens/id6765820679/reviews)** |
| Number of ratings | **23** | 2 |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 47 months | **Every 2 days** |
| Monetization | Paid | **Free** |
| Size | 8 MB | 145 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nitrio](https://appshunter.io/developer/321121189) | [BK Kejera](https://appshunter.io/developer/1707608873) |

## What reviewers say

### Solar Panel Calculator Plus

[App page](https://appshunter.io/ios/app/solar-panel-calculator-plus/id1358184660)

Calculate custom off-grid solar home power systems. Determine the exact number of solar panels and battery capacity needed for your energy usage. Helps plan system size, inverter requirements, and battery bank specifications.

**Highlights:** Calculate solar panel requirements, Determine battery capacity, Calculate inverter size, Estimate daily energy usage, Plan days of autonomy, Optimize battery life calculations

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

**In-app purchases:** none


### Sentiens

[App page](https://appshunter.io/ios/app/sentiens/id6765820679)

Create and customize your own private AI companion with distinct personalities, evolving memories, and adaptive behaviors. This offline platform offers deep control over your AI's intelligence and data ownership, running entirely on your device.

**Highlights:** Fully offline AI experience, Create and customize Sentien personalities, Dynamic, evolving memory system, Neural voice customization, Vision intelligence for image understanding, Choice of AI model sizes, Private by design with data ownership

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

**In-app purchases:** none


## Frequently asked questions

### Is Solar Panel Calculator Plus free?

Solar Panel Calculator Plus costs $2.99, with no in-app purchases.

### Is Sentiens free?

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

### Which has better reviews, Solar Panel Calculator Plus or Sentiens?

Sentiens is rated higher. Solar Panel Calculator Plus averages 3.3 out of 5 from 23 ratings, while Sentiens averages 5.0 from 2 ratings.

### Do Solar Panel Calculator Plus or Sentiens have ads?

Neither Solar Panel Calculator Plus nor Sentiens shows ads.

### Which is updated more often, Solar Panel Calculator Plus or Sentiens?

Solar Panel Calculator Plus ships an update every 47 months, and Sentiens every 2 days. Most recently, Solar Panel Calculator Plus was updated on October 27, 2026 and Sentiens on October 9, 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.*