3Dfits vs Level
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
3Dfits
This app offers a virtual fitting solution for online footwear and insole shopping. It uses advanced technology to scan your feet and provide accurate size recommendations, helping you find the perfect fit and avoid discomfort or returns.
- Virtual foot scanning
- Accurate size advice
- Footwear and insole recommendations
- Reduces returns
- Environmentally friendly
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Right Fit. First Time.™ 3Dfits™ is a virtual fitting solution that provides valuable insight into online footwear and insole shopping. The revolutionary new app gives you the right fit, the first time. Utilizing state-of-the-art technology, the 3DFits app provides a quick and efficient solution for consumers looking for the perfect fitting footwear and insoles, in just a few clicks, regardless of the brand. Why 3Dfits? 1. Scan your feet using your mobile phone 2. Get accurate size advice and choose from your favorite brands 3. Say goodbye to improper fitting footwear or insoles and foot pain 4. Save the hassle of ordering multiple sizes and having to deal with returns, and leave an environmentally friendly footprint
Level
This app provides a live sound-level meter and a pink-noise generator to help you set speaker levels, match channels, and verify system balance. It's designed for precise audio calibration without needing multiple tools.
- Live decibel reading
- Built-in pink-noise generator
- Peak-hold maximum marker
- A, C, & Z frequency weighting
- Manual calibration offset
- Multiple color themes
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Level is a fast, honest sound-level meter for iPhone. A big live decibel reading, plus Leq, Min, L90, and Peak alongside it — toggle on only what you need. A built-in reference generator and calibrated-mic support are there for speaker work or true SPL. One clean instrument, not a busy suite. FEATURES Big decibel reading — A/C/Z weighting, Fast (125 ms) or Slow (1 s) response Four toggleable stats in a 2×2 grid: Leq (energy-average), Min (quietest moment), L90 (background level — exceeded 90% of the time), Peak (true instantaneous peak). Always computed; show only what you need Peak-hold "Max" — a marker holds the loudest moment; tap to reset Reference signals: pink noise, white noise, ten octave tones (31.5 Hz–16 kHz), level-matched. 1 kHz tone pairs with a 94 dB calibrator Play any output — iPhone speaker, AirPlay, Bluetooth, or USB — while the meter keeps reading Calibrated-mic support: Dayton iMM-6C, miniDSP UMIK-1/UMIK-2/EARS, Behringer ECM8000, REW. Frequency correction plus a true-SPL anchor from the file's 1 kHz sensitivity Manual calibration offset Share card — current reading, your enabled stats, and the level bar Full VoiceOver support No account, no analytics, no third-party SDKs, no in-app purchases, no network connections HOW IT WORKS Open Level, allow the microphone, and read the room. Turn on Leq, Min, L90, and/or Peak in Settings → Readings to see them beside the live number in a 2×2 grid. Tap the meter to reset Max and every stat. For speaker work, tap play to send a reference signal to any output — pink noise for level-setting, white noise for tweeters, an octave tone for room modes, or the 1 kHz tone against a 94 dB calibrator. Long-press play (or use Settings) to switch. With the built-in mic, readings are approximate but honest and well-behaved. A calibrated USB mic and its cal file give true SPL. Either way, Level is a measurement tool, not a certified Type 1/2 instrument. GREAT FOR Checking if a room, party, nursery, or workspace is too loud Home theater/hi-fi — matching channels, setting levels, dialing in a subwoofer Car audio — matching and balancing components Live-sound hobbyists and DIY speaker builders Anyone who wants an honest number, without a pro measurement suite PRIVACY Audio is measured live only — never recorded, written to disk, or transmitted. No account, no analytics, no in-app purchases, no network connection at all. QUICK START Open Level, allow the microphone Read the big number (A-weighted by default) Settings → Readings: turn on Leq/Min/L90/Peak to add them to the grid Tap the meter to reset Max and every stat For speaker work: tap play to send a reference to any output; long-press to switch signals IMPORTANT Level is a general-purpose meter, not a certified Type 1/Type 2 instrument. Built-in mic readings are approximate; a calibrated USB mic with a cal file gives true SPL.
Screenshots
Verdict
The clearest difference is ads: Level at none against 3Dfits's shown. Level also leads on update cadence (every 2 weeks vs every 3 months) and monetization model (free vs ad-supported). 3Dfits's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price 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.
3Dfits ships an update every 3 months, Level every 2 weeks. The most recent releases landed on October 6, 2026 and September 24, 2026 respectively.
| Parameter | 3Dfits | Level |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 69 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | MEGA InTech Inc. | Carl Sieber |
Customer experience
3Dfits
Level
In-app purchases
3Dfits
No in-app purchases
Level
No in-app purchases









