SolarWriter vs Pineapple Ninja App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SolarWriter
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.
- E-reader integration
- External keyboard support
- Outdoor writing on e-ink screens
- Text mirroring to e-reader
- File saving and sharing
- Detailed setup instructions
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Turn your Kindle or e-reader into a sunlight-readable, distraction-free typewriter! Traditional screens are fantastic everywhere but outside, especially on a sunny day. E-ink screens work well, but e-readers like the Kindle are difficult to type on and don't support external keyboards. SolarWriter gives you the best of both worlds. SolarWriter runs on your iOS device and acts as a hub between your keyboard and your e-reader. You type on the keyboard, and the text appears on both the iOS device and the e-reader's screen (via its web browser). Take advantage of your Kindle's (or other e-reader's) e-ink screen to put your thoughts on the page even outside, with no need to transcribe later. Write at parks, on beaches, in backyards... anywhere you wanted to, but couldn't. Save files on your device, or share through email, SMS, and more. Detailed instructions for setup are included inside the app. What You Need: Your iPhone or iPad running SolarWriter An external keyboard A Kindle or other e-reader with a built-in web browser
Pineapple Ninja App
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One app to easily manage your Microsoft account.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | SolarWriter | Pineapple Ninja App |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (16 ratings) — better | — |
| Positive reviews | 60.0% of reviews | — |
| Number of ratings | 16 — better | — |
| Update frequency | Every 5 months — better | Every 6 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 13.4 — better |
| Further details — not scored | ||
| Size | 97 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Cool S, LLC | Meteoric Solutions Sdn Bhd |
In-app purchases
SolarWriter
- SolarWriter Pro$9.99
- SolarWriter Pro$19.99
Pineapple Ninja App
No in-app purchases
