Comparison

LetEL vs SoundSim360

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

Head to head
About

LetEL

Read full description

Letel Charge Mobile App allows you to locate the Charging Stations in Denmark and Charge the Electric Vehicles hustle-free. Plus, it provides the facility to make online payments for the Charging Sessions. The app makes the Electric Vehicle Charging process easy and convenient for people. The app is suitable for the personal and commercial use of Electronic Vehicles. We have mentioned the detailed information related to our application.

About

SoundSim360

Read full description

SoundSim360 brings professional-grade wind turbine noise simulation to your iPhone and iPad. Place turbines on a real map, run on-device propagation calculations, and within seconds see a geo-referenced noise heatmap. The computations are based on a condensed version of the full high-performance software package, adapted for quickly simulating dBA noise emissions from wind turbines on your device. Key features: Ā· Place turbines and receiver points on an interactive map using GPS coordinates or any supported coordinate system Ā· On-device inference using terrain elevation data (topography) and ground type data (forest, water, asphalt etc.) Ā· Color-coded noise heatmap showing A-weighted sound pressure levels in 5 dBA bands Ā· Noise levels at specific receiver point locations Ā· Your location: GPS-based noise reading from the simulation result at your current position Ā· Multiple independent simulation scenarios (create, rename, duplicate, import, and export) Ā· Export results as PNG image and CSV data file Ā· Share simulations as .soundsim files Subscription: The default app allows 2 turbines and a demo area to explore the app. Subscribing enables up to 30 turbines and unrestricted simulation area (global placement of turbines). SoundSim360 is developed by Pronumerix, the makers of the full SoundSim360 simulation software. Terms of Use: https://pronumerix.com/soundsim360/terms-of-use Privacy Policy: https://pronumerix.com/soundsim360/privacy-policy

Screenshots

LetEL4 screens
SoundSim3603 screens

Verdict

The call

The clearest difference is in-app purchases: LetEL at none against SoundSim360's 1. SoundSim360's advantage is update cadence (every 3 weeks vs every 25 months) and device support. On price and iOS requirement 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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. SoundSim360 sells 1 in-app purchase, starting at $34.99 per month. LetEL asks for nothing beyond the download.

UpkeepUpdate frequency

LetEL ships an update every 25 months, SoundSim360 every 3 weeks. The most recent releases landed on October 14, 2026 and October 6, 2026 respectively.

Scorecard3 real differences Ā· 3 level
LetEL versus SoundSim360: the parameters behind the verdict, then further details
ParameterLetELSoundSim360
PriceFreeFree
Update frequencyEvery 25 monthsEvery 3 weeks — better
Ads—No
In-app purchasesNo — betterYes
Devices—iPhone, iPad — better
Requires iOS15.6 — better16.4
Further details — not scored
Size22 MB66 MB
Age rating17+4+
DeveloperSoftControl ASPronumerix AB

In-app purchases

None

LetEL

No in-app purchases

1 purchases

SoundSim360

Subscriptions1
  • SoundSim360 Subscription$34.991 Month

Questions

Is LetEL free?
LetEL is free to download, with no in-app purchases.
Is SoundSim360 free?
SoundSim360 is free to download, with in-app purchases available.
Which is updated more often, LetEL or SoundSim360?
LetEL ships an update every 25 months, and SoundSim360 every 3 weeks. Most recently, LetEL was updated on October 14, 2026 and SoundSim360 on October 6, 2026.

Other comparisons