# SharpFox vs Kstert

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.

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.

## The numbers

| Metric | SharpFox | Kstert |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.4 (79 ratings)](https://appshunter.io/ios/app/sharpfox/id6450891421/reviews) | **[2.9 (36 ratings)](https://appshunter.io/ios/app/kstert/id6476297297/reviews)** |
| Number of ratings | **79** | 36 |
| Positive reviews | 28.8% of reviews | **36.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 106 MB | 105 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Xiamen Angyin Information Technology Co., Ltd](https://appshunter.io/developer/1604609639) | [Shenzhen Aierweile Electronics Co., Ltd](https://appshunter.io/developer/1777735349) |

## What reviewers say

### SharpFox

[App page](https://appshunter.io/ios/app/sharpfox/id6450891421)

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.

**Highlights:** Print A4, 2-inch, 3-inch labels, Rich label templates and borders, Create custom label styles, Bluetooth printing, Save and reuse label designs

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy setup for some users
- 🚀 Prints quickly when working
- 👍 Good quality prints
- 👍 Portable and convenient
- 👍 Works well with specific platforms (eBay, Pirateship)

**What reviewers complain about**

- 🐛 Frequent connection issues
- 🐛 App crashes and freezes often
- 🐛 Difficulty importing files
- 🐛 Login problems and account issues
- 🐛 Poor user interface and lack of instructions

**Reported bugs**

- 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

**Requested features**

- 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


### Kstert

[App page](https://appshunter.io/ios/app/kstert/id6476297297)

Control Bluetooth devices and connect with friends through integrated social features. Discover new and exciting ways to interact with your devices and community.

**Highlights:** Bluetooth device control, Integrated social features, Discover new gameplay, Connect with friends

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SharpFox free?

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

### Is Kstert free?

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

### Which has better reviews, SharpFox or Kstert?

Kstert is rated higher. SharpFox averages 2.4 out of 5 from 79 ratings, while Kstert averages 2.9 from 36 ratings.

### Do SharpFox or Kstert have ads?

Neither SharpFox nor Kstert shows ads.

### Which is updated more often, SharpFox or Kstert?

SharpFox ships an update every 4 weeks, and Kstert every 3 weeks. Most recently, SharpFox was updated on October 11, 2026 and Kstert on October 9, 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.*