ViewSonic Projector vs Callback Track
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
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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.
Callback Track
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Callback Track is the audition tracker built for working actors — a single place for your whole audition life, from the first breakdown to the callback to the booking. LOG EVERY AUDITION Production, role, what you sang, what you wore, how it felt, and exactly who was behind the table. Snap the sign-in sheet and capture the room in seconds. YOUR PEOPLE, BUILT AUTOMATICALLY Everyone you log behind the table becomes a contact — casting directors, music directors, choreographers — complete with your full history together, ready before you walk in the next time. SEE YOUR REAL NETWORK A living map of who you actually know, drawn from your own auditions. The closer to the center, the stronger the relationship — and "Get in the room" shows who can connect you where you want to go. KNOW WHAT'S WORKING Callback rates, your booking funnel, which rooms are warming up, and which days you tend to book. The more you log, the smarter it gets. MEDIA & RÉSUMÉ Keep headshots, sheet music, and reels in one place, and turn your booked auditions into a clean, professional acting résumé. Callback Track keeps your career organized so you can focus on the work. Break a leg.
Screenshots
Verdict
The clearest difference is device support: ViewSonic Projector at 3 against Callback Track's 1. ViewSonic Projector also leads on iOS requirement (12.0 vs 17.0). On price, 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.
| Parameter | ViewSonic Projector | Callback Track |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (12 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 12 — better | — |
| Update frequency | Every 3 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 22 MB | 2 MB |
| Age rating | 17+ | 4+ |
| Developer | ViewSonic International Corp. | TLP Solutions and Services LLC |
In-app purchases
ViewSonic Projector
No in-app purchases
Callback Track
No in-app purchases





