# FastCalc vs CSVToXLSX Converter

The clearest difference is review sentiment: FastCalc at 80% against CSVToXLSX Converter's 0%. CSVToXLSX Converter's advantage is in-app purchases (none vs 4) and price ($0.99 vs $1.99). On update cadence, ads, monetization model and device support there is nothing between them.

FastCalc costs $1.99 and CSVToXLSX Converter $0.99 up front. FastCalc sells 4 one-off in-app purchases. CSVToXLSX Converter asks for nothing beyond the download.

FastCalc ships an update every 5 months, CSVToXLSX Converter every 9 months. The most recent releases landed on October 7, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | FastCalc | CSVToXLSX Converter |
| --- | --- | --- |
| Price | $1.99 | **$0.99** |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/fastcalc/id350419994/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | **80.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 9 months |
| Monetization | Paid | Paid |
| Size | 8 MB | 3 MB |
| Requires iOS | 26.0 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Andre Ponzo](https://appshunter.io/developer/350419997) | [云峰 林](https://appshunter.io/developer/1740866485) |

## What reviewers say

### FastCalc

[App page](https://appshunter.io/ios/app/fastcalc/id350419994)

This calculator app offers a streamlined experience with large, easy-to-use keys and an innovative gesture-based interface. It displays your ongoing expression and results in real-time, eliminating the need for an equals button. Advanced features include percentage calculations and customizable constants.

**Highlights:** Large, practical keys, Permanent expression display, Automatic real-time results, Gesture-based input, Customizable constants, Advanced percentage mode

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Red Rivella | $1.99 | one-time |
| Homemade hot chocolate | $6.99 | one-time |
| Bircher muesli | $12.99 | one-time |
| Moitié-moitié fondue | $34.99 | one-time |


### CSVToXLSX Converter

[App page](https://appshunter.io/ios/app/csvtoxlsx-converter/id6737782239)

Convert CSV files to XLSX and vice versa with this offline tool. It offers batch processing, instant previews, and easy sharing, all while ensuring data security through local processing. Ideal for professionals, students, and researchers needing efficient file format conversion.

**Highlights:** CSV to XLSX conversion, XLSX to CSV conversion, Batch file processing, Instant file preview, Easy file sharing, Offline operation, Local data processing

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

**In-app purchases:** none


## Frequently asked questions

### Is FastCalc free?

FastCalc costs $1.99, and also offers in-app purchases.

### Is CSVToXLSX Converter free?

CSVToXLSX Converter costs $0.99, with no in-app purchases.

### Do FastCalc or CSVToXLSX Converter have ads?

Neither FastCalc nor CSVToXLSX Converter shows ads.

### Which is updated more often, FastCalc or CSVToXLSX Converter?

FastCalc ships an update every 5 months, and CSVToXLSX Converter every 9 months. Most recently, FastCalc was updated on October 7, 2026 and CSVToXLSX Converter on October 1, 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.*