# BioFlash vs iWrite

The clearest difference is price: BioFlash at Free against iWrite's $4.99. iWrite's advantage is in-app purchases (none vs 1) and update cadence (every 5 weeks vs every 7 months). On ads, device support and iOS requirement there is nothing between them.

BioFlash is free to download; iWrite costs $4.99 up front. BioFlash sells 1 in-app purchase, starting at $9.99 per year. iWrite asks for nothing beyond the download.

BioFlash ships an update every 7 months, iWrite every 5 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | BioFlash | iWrite |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 5 weeks** |
| Size | 44 MB | 25 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [Gentiana Etemi](https://appshunter.io/developer/1883027493) | [Ram Tulugu](https://appshunter.io/developer/1748577009) |

## What reviewers say

### BioFlash

[App page](https://appshunter.io/ios/app/bioflash-glossary/id6760253478)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BioFlash Premium | $9.99 | per year |


### 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 BioFlash free?

BioFlash is free to download, with in-app purchases available.

### Is iWrite free?

iWrite costs $4.99, with no in-app purchases.

### Do BioFlash or iWrite have ads?

Neither BioFlash nor iWrite shows ads.

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

BioFlash ships an update every 7 months, and iWrite every 5 weeks. Most recently, BioFlash was updated on October 24, 2026 and iWrite on October 25, 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.*