# SolarWriter vs Pineapple Ninja App

The clearest difference is in-app purchases: Pineapple Ninja App at none against SolarWriter's 2. Pineapple Ninja App also leads on iOS requirement (13.4 vs 15.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. SolarWriter sells 2 one-off in-app purchases. Pineapple Ninja App asks for nothing beyond the download.

SolarWriter ships an update every 5 months, Pineapple Ninja App every 6 months. The most recent releases landed on November 13, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | SolarWriter | Pineapple Ninja App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (16 ratings)](https://appshunter.io/ios/app/solarwriter-e-ink-typewriter/id997410577/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 6 months |
| Monetization | Free with in-app purchases | — |
| Size | 97 MB | 12 MB |
| Requires iOS | 15.6 | **13.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cool S, LLC](https://appshunter.io/developer/997410576) | [Meteoric Solutions Sdn Bhd](https://appshunter.io/developer/1500682587) |

## What reviewers say

### SolarWriter

[App page](https://appshunter.io/ios/app/solarwriter-e-ink-typewriter/id997410577)

Transform your e-reader into a portable typewriter for outdoor writing. This app connects your keyboard to your e-reader's screen, allowing you to type comfortably on e-ink displays in bright sunlight. Save and share your work easily.

**Highlights:** E-reader integration, External keyboard support, Outdoor writing on e-ink screens, Text mirroring to e-reader, File saving and sharing, Detailed setup instructions

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SolarWriter Pro | $9.99 | one-time |
| SolarWriter Pro | $19.99 | one-time |


### Pineapple Ninja App

[App page](https://appshunter.io/ios/app/pineapple-ninja-app/id1595322247)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SolarWriter free?

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

### Is Pineapple Ninja App free?

Pineapple Ninja App is free to download, with no in-app purchases.

### Do SolarWriter or Pineapple Ninja App have ads?

Neither SolarWriter nor Pineapple Ninja App shows ads.

### Which is updated more often, SolarWriter or Pineapple Ninja App?

SolarWriter ships an update every 5 months, and Pineapple Ninja App every 6 months. Most recently, SolarWriter was updated on November 13, 2026 and Pineapple Ninja App on November 11, 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.*