Comparison

NSP32 nanoLambda Spectrometer vs PLANET3

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

Head to head
About

NSP32 nanoLambda Spectrometer

Features
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XL-500 portable BLE spectrometer device is required. Please visit https://nanolambda.myshopify.com/ for more details. XL-500 is an ultra compact Bluetooth Spectroradiometer based on disruptive digital-nano convergence technology. While its size is compact, the features and performance is comparable to conventional industry popular equipment. It is easy and convenient to use as a portable device with smartphone app, as a spectrum recorder with internal memory and rechargeable battery. XL-500 is individually calibrated and provides device-to-device repeatability. This app supports: 1) Emission measurement (SPD, PPFD, LUX, CRI, CCT, CIEXYZ, CIExy, CIEuv ) 2) Periodic measurement (as spectrum recorder) 3) Reflection measurement (relative-SPD, CIEXYZ, CIELab, CIExy, CIEuv) Start the nanoLambda's latest BLE spectrometer adventure now.

About

PLANET3

Features
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The PLANET3-E app is used to help users of the PLANET3-E tuning kit set up and communicate with their new hardware via Bluetooth protocol. Key features include: Ability to customize: Set your desired limits and behavior of the tuning kit. Wheel Circumference: Accurately configure the wheel circumference for accurate speed and distance display. Distance Matching Modes: Choose from different distance matching options to balance performance and ease of use. Firmware Updates: Easily update the PLANET3-E tuning kit. Safety Mode: Enable a child-safe mode to prevent unwanted access to tuning settings. Diagnostics and Troubleshooting: Use the Debug Menu to identify and resolve potential issues. Ownership Transfer: Reset and transfer ownership seamlessly while maintaining warranty coverage for the next user. Whether you're a commuter, trail rider, or advanced user, PLANET3-E provides the tools to customize and optimize your e-bike for a superior riding experience.

Screenshots

NSP32 nanoLambda Spectrometer4 screens
PLANET34 screens

Verdict

The call

NSP32 nanoLambda Spectrometer and PLANET3 are too close to call on the numbers: across 6 compared parameters โ€” price, update cadence, ads and in-app purchases among them โ€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

NSP32 nanoLambda Spectrometer ships an update every 2 months, PLANET3 every 5 weeks. The most recent releases landed on December 13, 2025 and October 6, 2026 respectively.

ScorecardNo meaningful differences
NSP32 nanoLambda Spectrometer versus PLANET3: the parameters behind the verdict, then further details
ParameterNSP32 nanoLambda SpectrometerPLANET3
PriceFreeFree
Update frequencyEvery 2 monthsEvery 5 weeks โ€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPod
Requires iOS13.012.4 โ€” better
Further details โ€” not scored
Size22 MB47 MB
Age rating4+4+
DevelopernanoLambdaPlanet 3

In-app purchases

None

NSP32 nanoLambda Spectrometer

No in-app purchases

None

PLANET3

No in-app purchases

Questions

Is NSP32 nanoLambda Spectrometer free?
NSP32 nanoLambda Spectrometer is free to download, with no in-app purchases.
Is PLANET3 free?
PLANET3 is free to download, with no in-app purchases.
Do NSP32 nanoLambda Spectrometer or PLANET3 have ads?
Neither NSP32 nanoLambda Spectrometer nor PLANET3 shows ads.
Which is updated more often, NSP32 nanoLambda Spectrometer or PLANET3?
NSP32 nanoLambda Spectrometer ships an update every 2 months, and PLANET3 every 5 weeks. Most recently, NSP32 nanoLambda Spectrometer was updated on December 13, 2025 and PLANET3 on October 6, 2026.

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