Bat Synth

Phil Atkin · Education

Free

Chart standing · US

Not currently charting in this storefront.

What changed · US

Listing changes AppTracker has observed for this app in this storefront — new versions, price moves, rating shifts, and store copy.

Aug 26, 2026
New version 1.1 → 1.2

Improved UI (border colour of UI elements shows what is currently active), rebalanced levels of bat calls, 4-component PIPPYG social calls. Modified selection of test frequencies to support Middle C and soprano High C. Now if already synthesizing bats, just scrolling to another bats immediately synthesizes that bat - no need to press the GO button again.

About

Bat Synth is a tool for bat educators and trainers. By attaching a 384kHz USB-C DAC and ultrasonic amplifier / speaker (such as Bat Signal : https://www.pcbway.com/project/shareproject/Bat_Synth_2_b06cbf4c.html) to your phone you can create authentic-sounding bat echolocation calls, inaudible to humans, but which can then be revealed using a bat detector, or the Bat Detector iPhone app. In addition to bat calls a test tone generator is included, which can be used as part of bat education by illustrating how certain sounds can only be heard by young people, and other sounds cannot be heard by anyone at all as they are too high-pitched, and can only be revealed by a bat detector. Included bat calls are : Simulated bat passes : Common Pipistrelle featuring echolocation calls, social calls and feeding buzz Soprano Pipistrelle featuring echolocation calls, social calls and feeding buzz Echolocation calls only : Noctule Serotine Barbastelle Brown Long-Eared Bat Bechstein's Bat Daubenton's Bat Greater Horseshoe Bat Lesser Horseshoe Bat The app operates by synthesizing a 5 second fragment of the bat call which is then looped. These fragments are stored as .wav files within the app in Files->On my Phone->Bat Synth so can be retrieved and analysed.

What's new · 1.2

Improved UI (border colour of UI elements shows what is currently active), rebalanced levels of bat calls, 4-component PIPPYG social calls. Modified selection of test frequencies to support Middle C and soprano High C. Now if already synthesizing bats, just scrolling to another bats immediately synthesizes that bat - no need to press the GO button again.

Details

DeveloperPhil Atkin
ReleasedJul 2026
UpdatedJul 2026
Version1.2
Size1.3 MB
RequiresiOS 15.6 or later
Age rating4+
LanguagesEnglish
PriceFree
Categories Education
Bundle IDcom.omenie.BatSynth