Comparison

BlendZ vs LM

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

Head to head
About

BlendZ

Calculate the precise math needed for large, blended projection screens using multiple projectors. Input your desired screen dimensions, projector resolution, and number of projectors to get all the necessary information. Supports both feet and meters for your convenience.

Highlights
  • Calculate blended projection screen math
  • Input screen dimensions
  • Input projector resolution
  • Specify number of projectors
  • Supports feet and meters
  • Generate PDF information sheets
  • Draws grids with grayscale steps
Features
Read full description

Creativity frequently begins with a brilliant thought, rapidly followed by the frantic scribblings of pencil on paper, often accompanied by thumping's on a calculator. This is where BlendZ began. I wrote BlendZ to save me time working-out and re-calculating the math for large, widescreen, overlapping (blending) projectors, to make up screens larger than a single projector's image. If you need to work out the math for a wide screen projection surface using multiple projectors BlendZ is for you. To begin all you need to know is the desired width and height of the projection surface, the native chip resolution of the projectors (or output resolution of the source device) you are planning to use, and the number of projectors you think you need. Then, BlendZ will give you all the information you need. BlendZ works in both Feet and Metres, just choose your preferred flavour of measurement and off you go. Originally this application was written for the Mac and PC as a tool for the Project Managers of Creative Technology (www.ctinternational.com) and now I have released a mobile version for the iOS. Like the desktop version this will draw out the Grids,full with 8 or 16 step Grey-scale (horizontally or vertically) for ease of line up and if needed send out an information sheet as a PDF. Currently BlendZ only works out the stuff for a single row or column of projectors, at some point in the near future I plan to expand it to calculate projection arrays.

About

LM

This app transforms your mobile device into a high-quality camera source for live streaming and video production. It supports various professional broadcasting protocols and offers advanced features for seamless integration with popular software.

Highlights
  • NDI, SRT, RTMP streaming
  • OBS Studio, vMix, Wirecast compatible
  • Remote control operations
  • Multiple resolutions and frame rates
  • Image and camera settings
  • Background effects
Features
Read full description

LM-Cam is an NDI(R) camera app developed by LiveMedia. LM-Cam works with switchers that support NDI(R). * We recommend turning off Bluetooth when using LM-Cam. Supports iPhone 11 or better Supported Broadcasts: OBS Studio, vMix, WireCast, etc. You can stream directly from LM-Cam to platforms such as YouTube. -------- Free Plan Features -Remote Control operations with Pro Plan (Chrome browser recommended) -Video encoding- ・Full NDI ・HX2 (H.264 / HEVC) with Pro Plan HX2 can provide quality streams similar to Full NDI, but at 1/10 the data rate ・SRT (H.264 / HEVC) Caller / Listener / Rendezvous ・RTMP ・HLS ・External outputs(HDMI outputs)with Pro Plan ・Picture with Pro Plan ・Discovery Server ・Front and rear cameras ・Grid ・Presets ・Zoom: Digital zoom, Optical zoom ・Autofocus / Tap to focus ・Tally (Preview and Program Out) ・Resolutions: 4K, 1080, 720, 540, 480 ・FPS: 24, 25, 29.97, 30, 50, 60 ・Image settings: Exposure, Color Temperature, White Balance ・Screen lock ・Timecode ・TalkBack with Pro Plan ・Microphone On/Off ・User-defined camera name ・Recording - with Pro Plan ・Backgrounds(Green / Blue / Blur)- with Pro Plan -------- Pro Plan Monthly:$9.99 Pro Features ・Remote Control ・HX2 (H.264 / HEVC) ・Recording ・Backgrounds (Green / Blue / Blur) ・4K ・Picture ・TalkBack * Free one-month trial for new registered users, after which subscriptions will auto-renew at $9.99 per month. * Subscriptions will auto-renew unless canceled at least 24 hours before the end of the current period. Auto-renewal can be turned off in Account Settings. -------- * We recommend 5GHz when using Wi-Fi. 2.4GHz will expand the range, but may not work as well. * LM-Cam is compatitble with Apple iPhone ethernet adapters. Terms of Use:https://lm-cam.net/termsofuse?lang=en Privacy Policy:https://lm-cam.net/privacypolicy?lang=en

Screenshots

BlendZ4 screens
LM4 screens

Verdict

The call

The clearest difference is price: LM at Free against BlendZ's $0.99. LM also leads on rating (4.2 vs 3.7) and update cadence (every 3 weeks vs every 4 months). BlendZ's advantage is in-app purchases (none vs 1) and iOS requirement (9.0 vs 15.0). On ratings volume, ads 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

CostPrice · In-app purchases · Ads · Monetization

LM is free to download; BlendZ costs $0.99 up front. LM sells 1 in-app purchase, starting at $9.99 per month. BlendZ asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

LM holds the better App Store score, 4.2 against 3.7. Both are backed by a comparable volume of ratings — 3 and 5 respectively. Written reviews point the same way: 75% of BlendZ's written reviews are positive against 88% of LM's.

UpkeepUpdate frequency

BlendZ ships an update every 4 months, LM every 3 weeks. The most recent releases landed on September 8, 2026 and September 21, 2026 respectively.

Scorecard7 real differences · 3 level
BlendZ versus LM: the parameters behind the verdict, then further details
ParameterBlendZLM
Price$0.99Free — better
Rating3.7 (3 ratings)4.2 (5 ratings) — better
Positive reviews75.0% of reviews87.5% of reviews — better
Number of ratings35 — better
Update frequencyEvery 4 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFreemium — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS9.0 — better15.0
Further details — not scored
Size5 MB20 MB
Age rating4+4+
DeveloperDarren AlexanderLiveMedia Corporation

Customer experience

BlendZ

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

LM

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews8 reviews
Positive87.5%
Neutral12.5%
Negative0.0%

In-app purchases

None

BlendZ

No in-app purchases

1 purchases

LM

Subscriptions1
  • LM-Cam Pro (1 month)1 Month trial$9.991 Month

Questions

Is BlendZ free?
BlendZ costs $0.99, with no in-app purchases.
Is LM free?
LM is free to download, with in-app purchases available.
Which has better reviews, BlendZ or LM?
LM is rated higher. BlendZ averages 3.7 out of 5 from 3 ratings, while LM averages 4.2 from 5 ratings.
Do BlendZ or LM have ads?
Neither BlendZ nor LM shows ads.
Which is updated more often, BlendZ or LM?
BlendZ ships an update every 4 months, and LM every 3 weeks. Most recently, BlendZ was updated on September 8, 2026 and LM on September 21, 2026.

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