i Sound Level Meter vs Wind Triangle
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
i Sound Level Meter
Measure the noise levels around you with this sound meter. Track maximum and minimum decibel values during your measurements. For the most accurate readings, consider using a high-performance noise meter.
- Measures ambient noise levels
- Tracks maximum noise values
- Tracks minimum noise values
- Displays noise measurements
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The noise meter (noise measuring aparatus). There may be an error of measurement for each smart phone. You can measure how much noise around him. You can check the maximum and minimum values to start You noise measurements. It is recommended to use a high-performance noise meter for accurate noise measurement.
Wind Triangle
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Calculate heading and ground speed for flight planning, wind speed and direction for in-flight wind assessment, or any other parameter in the aviation wind triangle! Whether you need an easy wind solver for flight planning or you're a student pilot learning the ins and outs of the E6B wind side, this app makes solving the wind triangle intuitive and easy. With the in-flight wind assessment (GPS-enabled devices only), the app uses GPS and heading to automatically calculate the current wind at your altitude by just inputting your TAS or CAS with conditions. This brings integrated flight deck capabilities to your aircraft with a readout of your current head/tail- and crosswind components. Inputs supported: heading, true airspeed, ground speed, track, wind direction, wind speed. Input any four parameters and the app calculates the rest. Calibrated airspeed (CAS) may be set instead of TAS. Inputting CAS prompts you to set barometric setting, indicated altitude, and outside air temperature (OAT). From this, TAS, pressure altitude, and density altitude are calculated. Try GPS mode (supported devices only) on the ground by enabling the GPS Demo Mode option.
Screenshots
Verdict
The clearest difference is price: i Sound Level Meter at Free against Wind Triangle's $2.99. i Sound Level Meter also leads on iOS requirement (13.0 vs 17.6). Wind Triangle's advantage is ads (none vs shown). On update cadence, in-app purchases and device support 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
i Sound Level Meter is free to download; Wind Triangle costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 24, 2026 and October 17, 2026 respectively.
| Parameter | i Sound Level Meter | Wind Triangle |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 4.4 (38 ratings) — better | — |
| Positive reviews | 22.0% of reviews | — |
| Number of ratings | 38 — better | — |
| Update frequency | Every 2 months | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 13.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 7 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | EONSOFT | Small Aviation Tools |
In-app purchases
i Sound Level Meter
No in-app purchases
Wind Triangle
No in-app purchases
Questions
Is i Sound Level Meter free?
Is Wind Triangle free?
Do i Sound Level Meter or Wind Triangle have ads?
Which is updated more often, i Sound Level Meter or Wind Triangle?
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