SolarWriter vs Buno Maker
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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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 on the iOS device and on 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 paper 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.
Buno Maker
Create native iOS applications directly on your iPhone without any coding. Design interfaces with over 70 SwiftUI components and build logic visually with over 100 actions. Run your apps instantly with native performance and sync projects across devices via iCloud.
- Visual UI Builder with 70+ SwiftUI components
- Visual Programming with 100+ built-in actions
- Instant Run with native SwiftUI performance
- iCloud Sync across iPhone and iPad
- On-device processing for data privacy
- Design with 248+ visual modifiers
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Buno — Build SwiftUI Apps. No Code. On iPhone. Create real, native iOS applications entirely on your iPhone. No Mac, no Xcode, no coding — just build. ## Visual UI Builder Design with 70+ native SwiftUI components: layouts (VStack, HStack, Grid, ScrollView, Form, List), inputs (Slider, Picker, ColorPicker, DatePicker, Toggle), media (Video Player, Audio Player, WebView, QR Code, Charts), navigation (NavigationStack, TabView, Sheets, Menus), data (FilePicker, PhotosPicker, SQLite), and logic blocks (ForEach, If). Polish every detail with 248+ modifiers — fonts, shadows, animations, gestures, sheets, toolbars, haptics — all configured visually. ## Visual Programming — Real Logic Build real program logic by connecting outputs to inputs visually. 100+ built-in actions: HTTP requests, WebSocket, SQLite database, audio playback, biometric authentication (Face ID / Touch ID), file system, clipboard, calendar, SMS, email, JSON, regex, Base64, cryptography, timers, conditional branching, and loops. No syntax, no errors — just wire it up. ## Instant Run, Native Performance Tap Run and your app launches immediately — zero compilation. Buno interprets your component tree directly with 60fps native SwiftUI performance. ## iCloud Sync, Every Device Your projects sync seamlessly across all devices via iCloud. Start on iPhone, continue on iPad. ## For Learners, Prototypers, and Makers Understand programming concepts visually. Validate app ideas in minutes. Build real tools you use every day. All processing is on-device. Your data stays private. Email: hi@shu.dev
Screenshots
Verdict
The clearest difference is rating: Buno Maker at 5.0 against SolarWriter's 3.8. Buno Maker also leads on update cadence (every 9 days vs every 5 months). SolarWriter's advantage is ratings volume (16 vs 1) and iOS requirement (15.6 vs 17.0). On price, ads, in-app purchases and monetization model 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 1 one-off in-app purchase and Buno Maker sells 5 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
Buno Maker holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: SolarWriter has 16 ratings behind it against 1, so its average is the more settled of the two.
SolarWriter ships an update every 5 months, Buno Maker every 9 days. The most recent releases landed on September 10, 2026 and September 6, 2026 respectively.
| Parameter | SolarWriter | Buno Maker |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (16 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 64.3% of reviews | — |
| Number of ratings | 16 — better | 1 |
| Update frequency | Every 5 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 92 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Cool S, LLC | Shumin Yu |
Customer experience
SolarWriter
Buno Maker
In-app purchases
SolarWriter
- SolarWriter Pro$9.99
Buno Maker
- Monthly Subscription$9.991 Month
- Annual Subscription$49.991 Year
- DB SQLite$2.99
- Lifetime$9.99
- App Base$49.99







