POS vs devia
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
POS
This utility app enables printing from your iPhone or iPad to compatible printers via Bluetooth or Wi-Fi. It supports various character sets, barcodes, and images, converting them to printable graphics without needing printer drivers.
- Bluetooth printing
- Wi-Fi printing
- Print Chinese/English characters
- Print barcodes (1D/2D)
- Print images
- Driverless printing
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POS-Printer是一款免费应用程序，可以通过 Apple iPhone或iPad的本地蓝牙与打印机设备的BLE4.0蓝牙连接打印。 主要功能特点: 1、支持蓝牙打印。 2、支持Wi-Fi打印。 3、支持中英文字符、一维条码、二维条码及本地图库图片等的打印。 4、支持将各种字符转化为图形的方式打印，无需安装打印机驱动程序。 5、软件使用说明见如下链接: http://v.youku.com/v_show/id_XMTYzMTI1OTY4NA==.html
devia
This app allows users to personalize screen protectors and back films for smartphones and smartwatches. It works in conjunction with a smart cutting machine to produce custom-fit films for various device models, reducing inventory costs.
- Personalized screen protector designs
- Customizable back film designs
- Supports smartphones and smartwatches
- Works with smart cutting machines
- Wide range of device models
- Reduces inventory costs
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适用于智能手机，手表等屏幕保护膜及手机背膜个性化定制，主要配合百变膜方智能切膜机-输出APP里所包含的各种手机及手表等型号。例如：我们需要一个iphone11的手机保护膜，则需要打开APP选择iphone11这个数据点击发送，百变膜方智能切膜机就会开始切割。从而得到我们所需的产品。通过APP的数据来定制所需产品，大大节省了备货的成本。
Screenshots
Verdict
The clearest difference is rating: devia at 4.3 against POS's 3.0. devia also leads on review sentiment (35% vs 22%) and iOS requirement (12.1 vs 15.0). POS's advantage is ratings volume (28 vs 4). On price, update cadence, ads and in-app purchases 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.
devia holds the better App Store score, 4.3 against 3.0. That said, the two scores are not equally well evidenced: POS has 28 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 22% of POS's written reviews are positive against 35% of devia's.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 15, 2026 and October 9, 2026 respectively.
| Parameter | POS | devia |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (28 ratings) | 4.3 (4 ratings) — better |
| Positive reviews | 21.7% of reviews | 34.8% of reviews — better |
| Number of ratings | 28 — better | 4 |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 12.1 — better |
| Further details — not scored | ||
| Size | 21 MB | 43 MB |
| Age rating | 17+ | 4+ |
| Developer | 共海 王 | Dongguan Siteng Electronics Co., Ltd. |
Customer experience
POS
devia
In-app purchases
POS
No in-app purchases
devia
No in-app purchases
