# SolarWriter vs DeepLoupe

The clearest difference is in-app purchases: DeepLoupe at none against SolarWriter's 1. DeepLoupe also leads on update cadence (every 2 months vs every 5 months) and iOS requirement (12.4 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. SolarWriter sells 1 one-off in-app purchase. DeepLoupe asks for nothing beyond the download.

SolarWriter ships an update every 5 months, DeepLoupe every 2 months. The most recent releases landed on October 10, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | SolarWriter | DeepLoupe |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (16 ratings)](https://appshunter.io/ios/app/solarwriter/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 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 92 MB | 11 MB |
| Requires iOS | 15.6 | **12.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Cool S, LLC](https://appshunter.io/developer/997410576) | [Better and Faster Tech Inc](https://appshunter.io/developer/1643774025) |

## What reviewers say

### SolarWriter

[App page](https://appshunter.io/ios/app/solarwriter/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 (1)**

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


### DeepLoupe

[App page](https://appshunter.io/ios/app/deeploupe/id6450965467)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SolarWriter free?

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

### Is DeepLoupe free?

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

### Do SolarWriter or DeepLoupe have ads?

Neither SolarWriter nor DeepLoupe shows ads.

### Which is updated more often, SolarWriter or DeepLoupe?

SolarWriter ships an update every 5 months, and DeepLoupe every 2 months. Most recently, SolarWriter was updated on October 10, 2026 and DeepLoupe on October 12, 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.*