RL Filter

Name: RL Filter
Rating: 5 (18 reviews)
Author: Peter Ho

Peter Ho

★ 5.0 (18 ratings)

⬇ 1,000+ downloads

Est. actual: 2,825

Free

Released: Jan 13, 2014

IAP: $1.99 per item

Contains ads

Rated: Everyone

Signals

4 this week · 1 positive · 1 warning All of this week's signals →

📈Last 7 days 0 installs — 100% slower than the week before (+3) · 0/day since Sep 26
🏆Among Tools apps bottom 0% by installs gained this week (1080 peers growing)
⭐Rating steady at ★ 5.00 since Sep 26
🛠Updates quiet · updated 110 days ago

Installs since launch

+8 installs · 0 ratings since Sep 26

Update history

2.0.20 Jul 27, 2026 · seen Sep 26, 2026

2.0.20<br>- Fix minor bugs<br>

Only the current version so far — new entries appear as the app ships updates.

RL Filter is a tools app by Peter Ho with 1,000+ downloads (about 2.8K estimated). Rated 5.0 from 18 ratings. Released Jan 13, 2014. Install growth, rank history, SDKs and ad networks.

From the store listing: “This app is used to calculate RL filter. It is suitable for hobbyist or electronic engineers. Features: 1. Calculate cutoff frequency by resistor and inductor values 2. To find out combinations of resistance and inductance making a desired cutoff frequency 3. Save all combinations in a CSV (Excel) file 4. Use…”