# DifCal vs iWrite

The clearest difference is price: DifCal at Free against iWrite's $5.99. DifCal also leads on iOS requirement (12.0 vs 15.0). iWrite's advantage is update cadence (every 5 weeks vs every 15 months). On ads, in-app purchases and device support there is nothing between them.

DifCal is free to download; iWrite costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

DifCal ships an update every 15 months, iWrite every 5 weeks. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | DifCal | iWrite |
| --- | --- | --- |
| Price | **Free** | $5.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 5 weeks** |
| Size | 9 MB | 25 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sean Brennan](https://appshunter.io/developer/898026482) | [Ram Tulugu](https://appshunter.io/developer/1748577009) |

## What reviewers say

### DifCal

[App page](https://appshunter.io/ios/app/difcal/id898026479)

**Features:** Vision Pro support

**In-app purchases:** none


### iWrite

[App page](https://appshunter.io/ios/app/iwrite-abc-and-123-learning/id6787459368)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DifCal free?

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

### Is iWrite free?

iWrite costs $5.99, with no in-app purchases.

### Do DifCal or iWrite have ads?

Neither DifCal nor iWrite shows ads.

### Which is updated more often, DifCal or iWrite?

DifCal ships an update every 15 months, and iWrite every 5 weeks. Most recently, DifCal was updated on November 1, 2026 and iWrite on November 5, 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.*