SharpFox vs Kstert
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SharpFox
Design and print custom labels in various sizes, including A4, 2-inch, and 3-inch. Utilize a wide array of templates and borders, or create your own unique designs with extensive customization options. Save your creations for easy reprinting via fast Bluetooth connection.
- Print A4, 2-inch, 3-inch labels
- Rich label templates and borders
- Create custom label styles
- Bluetooth printing
- Save and reuse label designs
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SharpFox (app) is a professional printing software for printing Multiple Size Specifications labels, including A4, 2 inch, 3 inch, half inch. It contains rich label templates and beautiful label borders. You can create your own labels freely. [Bluetooth printing] Fast bluetooth connection and stable Bluetooth transmission [Create label] Create a label style that belongs to you. Rich control options and excellent adjustment mode to achieve real DIY. [Save label] Save your label. You don't need to edit it again when you need it. Open it and print it
Kstert
Control Bluetooth devices and connect with friends through integrated social features. Discover new and exciting ways to interact with your devices and community.
- Bluetooth device control
- Integrated social features
- Discover new gameplay
- Connect with friends
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蓝牙设备操控工具的基础上，集成好友社交，更多新奇玩法等待您的发现！
Screenshots
Verdict
The clearest difference is rating: Kstert at 2.9 against SharpFox's 2.4. Kstert also leads on review sentiment (37% vs 29%). On price, ratings volume, update cadence and ads 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. Neither carries in-app purchases, so what you see is what you pay.
Kstert holds the better App Store score, 2.9 against 2.4. Both are backed by a comparable volume of ratings — 79 and 36 respectively. Written reviews point the same way: 29% of SharpFox's written reviews are positive against 37% of Kstert's.
SharpFox ships an update every 4 weeks, Kstert every 3 weeks. The most recent releases landed on October 11, 2026 and October 9, 2026 respectively.
| Parameter | SharpFox | Kstert |
|---|---|---|
| Price | Free | Free |
| Rating | 2.4 (79 ratings) | 2.9 (36 ratings) — better |
| Positive reviews | 28.8% of reviews | 36.8% of reviews — better |
| Number of ratings | 79 — better | 36 |
| Update frequency | Every 4 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 106 MB | 105 MB |
| Age rating | 4+ | 17+ |
| Developer | Xiamen Angyin Information Technology Co., Ltd | Shenzhen Aierweile Electronics Co., Ltd |
Customer experience
SharpFox
Kstert
Bugs and requests
SharpFox
Reported bugs
20 issues- Unable to change units from mm to inches
- App freezes or crashes during use
- Connection issues (Bluetooth, server)
- Login failures and spinning icon
- App stops working after initial use
Show 15 moreShow fewer
- File uploading/document tab not working
- App not accessing all photos
- Printer disconnects after one page
- App only prints page 1
- App not working on specific phone models
- App does not scroll up to accept agreement
- App does not show agreement to accept
- App does not allow file import
- PDF annotations do not print
- App directs to read agreement but doesn't show it
- App not found in Microsoft Store
- App does not orient sideways
- QR code scanning not working
- Cannot print documents from laptop or iPad
- App shows instructions instead of allowing upload
Requested features
8 requests- Add inches measurement option
- Improve app intuitiveness and add instructions/help files
- Allow printing in color
- Improve file import functionality
- Fix inability to change from mm to inches
Show 3 moreShow fewer
- Allow printing of PDF annotations
- Add dark mode option
- Improve font size control
Kstert
Not enough reviews yet to summarise bugs or requests.
In-app purchases
SharpFox
No in-app purchases
Kstert
No in-app purchases
