Best Three9x alternatives: apps like Three9x

10+ similar apps compared and reviewed

4.1 avg rating
10 free apps
Updated November 2026
Three9x
Three9x
THREE9X (SMC-PRIVATE) LIMITED

Looking for something like Three9x? We've analyzed 10+ similar apps to help you find the best alternative. Each app is compared by ratings, features, and real user reviews, so you can make the right choice.

Top Alternatives to Three9x

More apps like Three9x

4
KLoraConfig
KLoraConfig
KLoraConfig
by KKM Co.,Ltd.
Free
🔧 Utilities
(0)
5
OCTAV — SPL Meter, RTA, Tuner
OCTAV — SPL Meter, RTA, Tuner
OCTAV — SPL Meter, RTA, Tuner
Built for Live Sound Engineers
Free

This app provides a suite of audio analysis tools for sound engineers, including a calibrated SPL meter, RTA, and tuners. It offers features for live sound work, instrument tuning, and system checks, with advanced functions available via subscription.

Calibrated SPL meter with A/C/Z weighting31-band RTA with feedback finderChromatic and drum tuner
🔧 Utilities
(1)
freemium
6
C-OX
C-OX
C-OX
by Xiamen C-chip Technology Co., Ltd.
Free
🔧 Utilities
(0)
7
NexBeacon Pro
NexBeacon Pro
NexBeacon Pro
by Shenzhen Hong yi yun jia technology Co.,LTD
Free
🔧 Utilities
(0)
8
VoicePro: AI Audio & Recorder
VoicePro: AI Audio & Recorder
VoicePro: AI Audio & Recorder
Professional Voice Recorder
Free
🔧 Utilities
(0)
9
OmniCalc - Calculator & Notes
OmniCalc - Calculator & Notes
OmniCalc - Calculator & Notes
History, Totals & Budgets
Free

This calculator app allows you to add notes to numbers and calculations, group related results for easy totaling, and keep projects separate. It features a searchable history and customizable appearance options for everyday math needs.

Add notes to numbers and calculationsTotal multiple results with one tapKeep projects separate with calculation pages
🔧 Utilities
(1)
free
10
Super Ear: Hear from Distance
Super Ear: Hear from Distance
Super Ear: Hear from Distance
Live Hearing Amplifier.
Free

This app amplifies sound captured by your iPhone's microphone, streaming it directly to your Bluetooth headphones. It's designed to help you hear conversations, lectures, or ambient sounds more clearly in various environments.

Live audio streamingBluetooth headphone supportSound amplification
🔧 Utilities
(5)
free with in-app purchases