Comparison

Screen Share CastNow vs LookOnce

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Screen Share CastNow

Share your mobile screen wirelessly in high definition with low latency. This app uses a secure peer-to-peer connection, requiring no installation on the receiving device. Ideal for presentations, support, or sharing media.

Highlights
  • Unlimited screen streaming
  • Secure P2P architecture
  • Universal receiver (no installation)
  • High-definition, low latency
  • Zero configuration setup
  • Mobile broadcasting hub
Features
Read full description

CastNow Pro is the premium edition of the CastNow ecosystem, specifically engineered for users who demand professional-grade reliability and unrestricted freedom in screen sharing. Key Features: Unlimited Streaming: Eliminate the session time limits found in the standard version. Cast your screen for as long as your task requires. Secure P2P Architecture: Powered by cutting-edge WebRTC technology, your data is transmitted directly between devices. With no intermediate servers and no audio data collection, your privacy remains absolute. Universal Receiver: No installation is required on the receiving end. Simply open castnow.vercel.app in any modern web browser to start receiving your stream instantly. High-Definition & Low Latency: Enjoy smooth, high-quality video streaming with our optimized transmission protocols. Zero Configuration: Get started in seconds with a simple 6-digit access key. No complex accounts or hardware setup needed. Perfect for professional presentations, remote technical support, or sharing high-quality media with friends and family. CastNow Pro turns your mobile device into a powerful broadcasting hub. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

LookOnce

This utility app helps you quickly confirm tasks in various daily situations without complex tracking. Data is stored locally for enhanced privacy. Create custom check scenes for different routines and easily manage, share, or export your completed confirmations.

Highlights
  • Local data storage for privacy
  • Customizable check scenes
  • Focused, simple check process
  • Scene management with favorites
  • Swipe-left deletion for scenes
  • Sharing and export of results
Features
Read full description

LookOnce is a quick check tool for different moments in daily life.Your data is stored locally, giving you more peace of mind about privacy. It is not a to-do list, and it is not a complicated tracking app. It is designed for moments when you simply want to confirm something once before moving on — leaving home, traveling, commuting, starting work, preparing for sleep, running errands, or any small routine that you do not want to keep worrying about. You can create separate check scenes for different situations. Open the scene you need, go through the items, and finish the check in a simple, focused way. LookOnce 1.2 improves scene management with favorites and swipe-left deletion. It also adds sharing and export for completed check results, making it easier to save or use your confirmation record when needed. Check once, then let it go.

Screenshots

Screen Share CastNow4 screens
LookOnce4 screens

Verdict

The call

The clearest difference is price: LookOnce at Free against Screen Share CastNow's $3.99. Screen Share CastNow's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 17.0). On rating, 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

CostPrice · In-app purchases · Ads · Monetization

LookOnce is free to download; Screen Share CastNow costs $3.99 up front. Screen Share CastNow sells 1 in-app purchase, starting at $1.99 per year and LookOnce sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Screen Share CastNow against 5.0 for LookOnce. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

Screen Share CastNow ships an update weekly, LookOnce every 9 days. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 5 level
Screen Share CastNow versus LookOnce: the parameters behind the verdict, then further details
ParameterScreen Share CastNowLookOnce
Price$3.99Free — better
Rating5.0 (2 ratings)5.0 (1 ratings)
Number of ratings2 — better1
Update frequencyWeekly — betterEvery 9 days
AdsNoNo
In-app purchasesYesYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.6 — better17.0
Further details — not scored
Size47 MB9 MB
Age rating4+4+
Developer新宇 刘楷文 罗

Customer experience

Screen Share CastNow

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

LookOnce

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Screen Share CastNow

Subscriptions1
  • CastNow VIP - 1 Year$1.991 Year
1 purchases

LookOnce

One-time1
  • LookOnce Pro$4.99

Questions

Is Screen Share CastNow free?
Screen Share CastNow costs $3.99, and also offers in-app purchases.
Is LookOnce free?
LookOnce is free to download, with in-app purchases available.
Which has better reviews, Screen Share CastNow or LookOnce?
Screen Share CastNow and LookOnce are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do Screen Share CastNow or LookOnce have ads?
Neither Screen Share CastNow nor LookOnce shows ads.
Which is updated more often, Screen Share CastNow or LookOnce?
Screen Share CastNow ships an update weekly, and LookOnce every 9 days. Most recently, Screen Share CastNow was updated on October 28, 2026 and LookOnce on October 24, 2026.

Other comparisons