# ProGuidePower vs Stoltz Calc

The clearest difference is iOS requirement: ProGuidePower at 11.0 against Stoltz Calc's 17.6. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 5 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | ProGuidePower | Stoltz Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.2 (5 ratings)](https://appshunter.io/ios/app/proguidepower/id1643911273/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | Every 5 months |
| Monetization | Free | — |
| Size | 6 MB | 1 MB |
| Requires iOS | **11.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Battery Outfitters, Inc](https://appshunter.io/developer/1643911275) | [Stoltz MFG., LLC.](https://appshunter.io/developer/1791006988) |

## What reviewers say

### ProGuidePower

[App page](https://appshunter.io/ios/app/proguidepower/id1643911273)

Monitor your battery's performance with real-time data. Track charge, cycle life, and health via Bluetooth connection. Get insights into charging status and identify potential faults.

**Highlights:** Real-time battery data, State of Charge tracking, Cycle Life monitoring, Amperage Draw analysis, Battery Health assessment, Fault and error code identification, Charging status monitoring

**Features:** macOS Compatibility

**In-app purchases:** none


### Stoltz Calc

[App page](https://appshunter.io/ios/app/stoltz-calc/id6740665888)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ProGuidePower free?

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

### Is Stoltz Calc free?

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

### Do ProGuidePower or Stoltz Calc have ads?

Neither ProGuidePower nor Stoltz Calc shows ads.

### Which is updated more often, ProGuidePower or Stoltz Calc?

ProGuidePower ships an update every 5 months, and Stoltz Calc every 5 months. Most recently, ProGuidePower was updated on November 3, 2026 and Stoltz Calc on October 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.*