Estimate engine RPM using your iPhone's microphone without any extra hardware. Ideal for classic cars, motorcycles, and small engines, it provides real-time readings with confidence levels and measurement history.
3.0(2 ratings)
FreeIn-App Purchases
Best SoundTach alternatives: apps like SoundTach
10+ similar apps compared and reviewed
3.4 avg rating
9 free apps
Updated October 2026
Whether you want more options like SoundTach or a completely different take on the same concept, our curated list of 10+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.
Top Alternatives to SoundTach
0.0(0 ratings)
FreeIn-App Purchases
4.0😐(35 ratings)
$8.99
Analyze engine sound to calculate RPM using advanced signal processing. Ideal for engine setup and diagnostics, it supports various engine types and provides real-time feedback for accurate readings.
What We Love
- 💰 Saves money vs. dedicated tachometer
- 🛠️ Useful for engine tuning/diagnostics
- ✅ Works well with correct settings
- 🏎️ Accurate for steady RPMs
- 💡 Ingenious app concept
- 👍 Easy to use after reading instructions
- 🔊 Picks up engine sound well
- 🚀 Fast and accurate readings (when working)
- 🔧 Good for small engine repair shops
- 💯 Indispensable shop tool (for some)
- 📊 Visualizes audio waveform
- ✈️ Works in aircraft (backup)
Room to Improve
- 📉 Inaccurate or unreliable readings
- ❓ Difficult to configure/use
- 💸 Waste of money (for many)
- 😵 Confusing interface/settings
- ⚡ Not good for rapidly changing RPMs
- 🚗 Affected by background noise
- 🤷♂️ Requires physics knowledge/expertise
- 💰 Expensive for inconsistent results
- 🚫 Does not work on all engines/devices
- ⚡ Readings jump erratically
- 🔌 Cannot measure electric motors
- 😵💫 Steep learning curve
