Comparison

LMX Phone vs What Speed

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

Head to head
About

LMX Phone

Features
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Take command of your show with LMX Phone - the ultimate mobile DMX/ArtNet controller designed for theatre, TV, live events, and creative professionals. Built with operators in mind, this app delivers instant cue response, clean UI clarity, and powerful media assignment tools for flawless performance every time. Key Features Real-Time Control: Send ArtNet instantly with zero-lag feedback — perfect for live cueing and precision timing. Dynamic Media Assignment: Attach images or videos to cues for visual previews and quick access. Colour Filtering & Scaling: Operator-friendly filters for reliable looks. Persistent Storage: Your universe/channel setups and media stay locked in across launches. Demo Mode: Explore all core functionality with limited universes — upgrade to unlock full control. Built for Pros Whether you're cueing LX effects, programming playback, or previsualizing live looks, DMX Phone Control is your backstage companion: Designed for fast finger access and screen clarity Compatible with ArtNet over Wi-Fi UX refined for operators under pressure Why Upgrade? Unlock full power with a single in-app purchase: Remove demo watermark Edit universe/channel settings Enable flashlight cue mode

About

What Speed

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What Speed - am I doing? This app is designed to tell you how fast you are going, what direction, and your altitude. Cost: Completely free to download and use - you can optionally chip in via in-app support if you’d like to support ongoing development. What Speed shows live GPS speed, altitude, and recent movement in one clean layout - so you can focus on how fast you’re moving and how it changes over time. Pick your average (instant speed or a rolling average over the last few seconds or up to a minute), glance at min and max over the last minute, and use speed and altitude charts when you want the bigger picture. What you can see and control • Live speed from GPS, with optional 3s–60s rolling averages as your main readout • Min / max speed over the last minute next to your primary speed • Optional panels with multiple average windows at once (show or hide when you want less clutter) • Speed-over-time and altitude-over-time charts, with a configurable range (1 min to 1 hour of history on the timeline) • Heading display (compass-style) when you want direction at a glance • Metric or imperial: km/h or mph • Pause to freeze readings and charts, clear to reset stored samples for a fresh session • Keep screen awake while you’re using the app (optional) • Appearance: follow the system, or light / dark • Averages that ignore standstill (optional) - useful if you only care about moving time Settings Choose how averages work, how long charts cover, whether speed and altitude history is saved between launches, and which readout is front and center. Send feedback from the app if you have ideas or run into issues; support options are there if you’d like to help keep development going. Completely optional! Location What Speed needs location access (and GPS-capable hardware) to compute speed and altitude. It’s built for cycling, running, driving, and other outdoor movement - not for turn-by-turn navigation. It does not run in the background if you close the app. A small, focused instrument for “what speed am I doing right now - and how is it changing?” without the noise of a full fitness or navigation suite. It is great at confirming what speed you are actually doing compared to what your speedometer suggests you are doing (car manufacturers especially appear to overestimate how fast you are going!)

Screenshots

LMX Phone1 screens
What Speed4 screens

Verdict

The call

LMX Phone and What Speed are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both are free to download. LMX Phone sells 1 one-off in-app purchase and What Speed sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
LMX Phone versus What Speed: the parameters behind the verdict, then further details
ParameterLMX PhoneWhat Speed
PriceFreeFree
Update frequencyEvery 3 months—
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad — betteriPhone
Requires iOS18.0 — better18.6
Further details — not scored
Size13 MB1 MB
Age rating4+4+
DeveloperDANIEL BRETT SZELAZEKSix Pine Trees Limited

In-app purchases

1 purchases

LMX Phone

One-time1
  • Unlock Full Version$9.99
4 purchases

What Speed

One-time4
  • Donation - Small$1.00
  • Donation - Medium$5.00
  • Donation - Large$10.00
Show 1 more
  • Donation - Generous$100.00

Questions

Is LMX Phone free?
LMX Phone is free to download, with in-app purchases available.
Is What Speed free?
What Speed is free to download, with in-app purchases available.
Do LMX Phone or What Speed have ads?
Neither LMX Phone nor What Speed shows ads.

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