SPM LineLazer vs PSLab
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
SPM LineLazer
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The app, designed for use with the LineLazer precision shaft alignment sensors from SPM Instrument (LLS10 and LLM10), ensures a smoother-than-ever alignment process! The app guides you through the entire alignment process in an intuitive manner, using a visually appealing and intelligible 3D graphical interface. You can rotate the 3D virtual machine for a live view from any direction, and the continuous sweep function saves considerable time and effort. The app can visually amplify misalignment conditions, making it easy to see any vertical or horizontal angularity and offset. Once the system has determined the degree of misalignment, the app provides clear and straightforward on-screen guidance to the feet corrections necessary to achieve a perfectly aligned machine. Upon completion of the procedure, you can save details and results in a report that can be shared in a variety of ways. The LineLazer sensors and app are a cost-efficient laser alignment system that does not require a portable data logger. The sensors provide precise and reliable readings, and the app can be used on any laptop, tablet, or smartphone (recommended minimum screen size is 5ā) with Bluetooth; just download the app and connect to the sensors. The app features a Demo mode, allowing users to simulate alignment scenarios and try out app functionality also without the sensors. Key features of the LineLazer app include: ⢠Precision alignment with reliable results ⢠Intuitive interface with enhanced, live view 3D graphics ⢠Responsive design ⢠Continuous sweep ⢠Visual amplification of misalignment ⢠Soft foot check ⢠Feet lock ⢠Thermal growth compensation ⢠Tolerance checks ⢠Demonstration mode ⢠Free app download - no license required.
PSLab
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Pocket Science Lab (PSLab) comes with an array of instruments including Oscilloscope, Multimeter, Waveform Generator, Frequency Counter, Programmable Voltage, Current Source and many more. With instruments such as the Luxmeter and Barometer you can also do measurements directly using your phone sensors. Other instruments can use the PSLab Open Hardware extension that combines many devices in one. PSLab enables you to do science experiments without the need for programming. You can store and export the data and show it on a map. The app is created by the FOSSASIA community and developed entirely as Open Source ensuring privacy and long-term support.
Screenshots
Verdict
The clearest difference is update cadence: PSLab at fortnightly against SPM LineLazer's every 3 months. PSLab also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
SPM LineLazer ships an update every 3 months, PSLab fortnightly. The most recent releases landed on September 26, 2026 and September 13, 2026 respectively.
| Parameter | SPM LineLazer | PSLab |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Fortnightly ā better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 ā better |
| Further details ā not scored | ||
| Size | 96 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | SPM Instrument AB | FOSSASIA |
In-app purchases
SPM LineLazer
No in-app purchases
PSLab
No in-app purchases
Questions
Is SPM LineLazer free?
Is PSLab free?
Do SPM LineLazer or PSLab have ads?
Which is updated more often, SPM LineLazer or PSLab?
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