ViewSonic Projector vs 渴信
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ViewSonic Projector
This app provides comprehensive knowledge for selecting and installing projectors. It offers practical guidance for various settings, helping users determine optimal placement based on room dimensions and desired screen size. Interactive simulations allow for real-time adjustments.
- Projector selection guidance
- Installation know-how
- Placement distance calculation
- Screen size and aspect ratio input
- Interactive distance adjustment
- Simulation scenarios
Read full descriptionHide full description
ViewSonic Projector summarizes the projector’s basic and advanced know-how to end users, installers, or distributors. It contains a bunch of practical information for choosing appropriate projectors in different scenarios. No matter small meeting room, middle classroom, or big hall, ViewSonic Projector tells you how far the projector should be placed according to the room ceiling height, projector’s screen size, aspect ratio, etc. Just input several figures, the result will be displayed in the simulation scenarios with measurement. You can use finger to adjust the distance instantly.
渴信
Read full descriptionHide full description
渴视APP移动客户端充分解决工厂、商铺、写字楼，别墅等小范围区域火灾、漏水、安防的远程实时监控，提前预警，及时推送报警信息，多人在线值班等用户需求。渴视APP搭载天钺电子研发的智能传感器设备构成一整套软硬件监控系统。
Screenshots
Verdict
The clearest difference is update cadence: ViewSonic Projector at every 3 months against 渴信's every 7 months. 渴信's advantage is iOS requirement (10.2 vs 12.0). On price, ads, in-app purchases and device support 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.
ViewSonic Projector ships an update every 3 months, 渴信 every 7 months. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.
| Parameter | ViewSonic Projector | 渴信 |
|---|---|---|
| Price | Free | Free |
| Rating | 2.4 (14 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 14 — better | — |
| Update frequency | Every 3 months — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 10.2 — better |
| Further details — not scored | ||
| Size | 22 MB | 149 MB |
| Age rating | 17+ | 4+ |
| Developer | ViewSonic_International | JSW PACIFIC CORPORATION |
In-app purchases
ViewSonic Projector
No in-app purchases
渴信
No in-app purchases
Questions
Is ViewSonic Projector free?
Is 渴信 free?
Do ViewSonic Projector or 渴信 have ads?
Which is updated more often, ViewSonic Projector or 渴信?
Other comparisons
