# BA Financial Calculator Plus vs 42 Foundation Tools

The clearest difference is rating: 42 Foundation Tools at 5.0 against BA Financial Calculator Plus's 4.5. 42 Foundation Tools also leads on in-app purchases (none vs 4) and update cadence (fortnightly vs every 5 weeks). BA Financial Calculator Plus's advantage is ratings volume (145 vs 1). On price, ads and device support there is nothing between them.

Both are free to download. BA Financial Calculator Plus sells 4 in-app purchases, starting at $6.99 per year. 42 Foundation Tools asks for nothing beyond the download.

42 Foundation Tools holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: BA Financial Calculator Plus has 145 ratings behind it against 1, so its average is the more settled of the two.

BA Financial Calculator Plus ships an update every 5 weeks, 42 Foundation Tools fortnightly. The most recent releases landed on October 16, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | BA Financial Calculator Plus | 42 Foundation Tools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (145 ratings)](https://appshunter.io/ios/app/ba-financial-calculator-plus/id1146278871/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/42-foundation-tools/id6793000708/reviews)** |
| Number of ratings | **145** | 1 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 13 MB | 3 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RAY INFORMATICS YAZILIM TEKNOLOJI MEDYA DANISMANLIK VE EGITIM TICARET LIMITED SIRKETI](https://appshunter.io/developer/965885089) | [PALMER CHRISTIEN MAHONEY](https://appshunter.io/developer/6793000710) |

## What reviewers say

### BA Financial Calculator Plus

[App page](https://appshunter.io/ios/app/ba-financial-calculator-plus/id1146278871)

This app offers a comprehensive suite of financial calculators, including TVM, NPV, and ROI, with detailed explanations, formulas, and examples. It provides data visualization, reports, and AI-powered insights for complex financial calculations, all while prioritizing on-device processing for privacy.

**Highlights:** Financial calculators with descriptions, formulas, and examples, Time Value of Money (TVM) calculations, Net Present Value (NPV) and Internal Rate of Return (IRR), Return on Investment (ROI) analysis, AI-powered explanations for financial insights, Data visualization and calculation reports, On-device processing for privacy

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ba Financial Pro Yearly | $6.99 | per year |
| BA Financial Yearly | $14.99 | per year |
| BA Financial Pro Lifetime | $17.99 | one-time |
| BA Financial Calculator Lifetime | $34.99 | one-time |


### 42 Foundation Tools

[App page](https://appshunter.io/ios/app/42-foundation-tools/id6793000708)

This app provides retirement planning tools specifically for first-responder and public-sector families. It helps estimate pensions, project income, and analyze various savings and insurance options. All data is saved locally on your device for privacy.

**Highlights:** Retirement income projection, CalPERS pension estimation, 457(b) deferred comp analysis, Life insurance gap analysis, College savings planner, Local data saving

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

**In-app purchases:** none


## Frequently asked questions

### Is BA Financial Calculator Plus free?

BA Financial Calculator Plus is free to download, with in-app purchases available.

### Is 42 Foundation Tools free?

42 Foundation Tools is free to download, with no in-app purchases.

### Which has better reviews, BA Financial Calculator Plus or 42 Foundation Tools?

42 Foundation Tools is rated higher. BA Financial Calculator Plus averages 4.5 out of 5 from 145 ratings, while 42 Foundation Tools averages 5.0 from 1 ratings.

### Do BA Financial Calculator Plus or 42 Foundation Tools have ads?

Neither BA Financial Calculator Plus nor 42 Foundation Tools shows ads.

### Which is updated more often, BA Financial Calculator Plus or 42 Foundation Tools?

BA Financial Calculator Plus ships an update every 5 weeks, and 42 Foundation Tools fortnightly. Most recently, BA Financial Calculator Plus was updated on October 16, 2026 and 42 Foundation Tools on October 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*