NexSo vs MuscleLight
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NexSo
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NexSo is the world's most advanced software for flywheel devices and force sensors. Its a one size fits all. With one app you'll be able to control all of Neuroexcellence's product line: Acceleration Squat Excellence Acceleration Squat Basic Acceleration Leg Curl/Extension Acceleration Calf Raise Acceleration Pulley Acceleration Pulley Portable Acceleration Pulley Fast Smart Groin Trainer Smart Traction Smart Dynamometer Real time feedback with a new meaning: Depending on the product and NexSo sensor kit you connect to, NexSo will render the view filtering the unused metrics. Real Ground Force Reactions will be recorded with force platforms, as well as, speed metrics based on the axis angular speed. Autonomous concentric/eccentric phase detection In the Excellence product line, NexSo is capable of autodetecting the concentric/eccentric phases of the dynamic exercises. Simplify the process and easily assess the athlete performance by phase. Designed to fulfill the user’s needs Track your maximum force, power, speed and acceleration results, as well as, your output imbalance, either as a bilateral deficit, agonist/antagonist ratio or concentric to eccentric relation. Monitor your reps and their predominance and even set goals or work zones with the “effort lines” feature. All of this and more at incredible detail with 200hz of data acquisition. The NexSo app requires a Neuroexcellence device and a NexSo sensorization kit.
MuscleLight
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MuscleLight is an app accompanying RedStep device that supports your general wellness and relaxation routines through gentle, light-based sessions. It helps you unwind, stay consistent with healthy habits, and enjoy moments of recovery anytime, anywhere. App features: • Connect and control your external RedStep wellness device • Create customized light sessions for relaxation and daily comfort • Track your usage and set helpful reminders • Explore routines that support balance and wellbeing Important information: • The MuscleLight App requires the external RedStep device to function. • The MuscleLight App and RedStep device are not medical devices. • They do not diagnose, treat, cure, or prevent any disease or medical condition. • All information provided is for general wellness purposes only. • If you have health concerns or persistent discomfort, consult a qualified healthcare professional. Experience calm, comfort, and relaxation with MuscleLight — your personal wellness companion.
Screenshots
Verdict
The clearest difference is device support: NexSo at 3 against MuscleLight's 1. On price, update cadence, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
NexSo ships an update fortnightly, MuscleLight monthly. The most recent releases landed on September 11, 2026 and September 8, 2026 respectively.
| Parameter | NexSo | MuscleLight |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 167 MB | 52 MB |
| Age rating | 4+ | 17+ |
| Developer | Neuroexcellence | Recolth Oy |
In-app purchases
NexSo
No in-app purchases
MuscleLight
No in-app purchases









