Comparison

Black Audio Tool vs OpenBioMaps Forms

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Black Audio Tool

This app is a versatile sound generation tool for exploring audio. It allows users to create and control a wide range of sounds, from classic waveforms to various noise colors, with built-in effects for further shaping. Designed for audiophiles, sound designers, and musicians, it offers precise real-time control for creative experimentation.

Highlights
  • Precise waveform generation
  • Multiple noise colors
  • Built-in reverb and distortion
  • Real-time parameter control
  • Infra sonic and ultra sonic modes
  • Audio recording to file
Features
Read full description

Black Audio Tool – B.A.T. Black Audio Tool (B.A.T.) is a powerful and versatile sound-generation app for anyone who enjoys exploring audio. Whether you are an audiophile, sound designer, musician, engineer, or simply curious about the physics of sound, B.A.T. turns your device into a compact laboratory for tone creation, noise shaping, and experimental listening. Create and control a wide range of sounds with precision. Generate classic waveforms such as sine, square, sawtooth, and triangle, then fine-tune them in real time with responsive controls for frequency, tuning, fine tuning, amplitude, and wet/dry mix. B.A.T. goes beyond standard tone generation. Explore interference, layered signal combinations, and a rich collection of noise colors, including white, pink, brown, blue, violet, green, and black noise for everything from soft ambience to unpredictable textures and randomized bursts. To shape your sound even further, B.A.T. includes built-in audio effects such as reverb and distortion, with the option to combine them for more complex and aggressive sonic results. The interface is designed for fast experimentation, precise adjustment, and smooth real-time control. From clean reference tones to abstract soundscapes, from audible frequencies to infra sonic and ultra sonic ranges, B.A.T. is built for discovery, testing, and creative play. Key Features: * Precise waveform generation * Sine, square, sawtooth, and triangle waves * Interference and overlay sound generation * Multiple noise colors, including black noise * Reverb, distortion, and mixed effects * Infra sonic and ultra sonic tone modes * Real-time parameter control * Audio recording to file * AirPlay support Private by Design: * No ads * No in-app purchases * No trackers * No data collection B.A.T. is a focused utility app made for pure sound experimentation — clean, direct, and fully yours.

About

OpenBioMaps Forms

Features
Read full description

Use OpenBioMaps to record monitoring data for living organisms and habitats. In addition to basic data (what, when, where and in what quantities), the OpenBioMaps app allows you to compile and use any data collection forms. To use the application, you must sign up on a selected OpenBioMaps server, which usually requires an invitation! You can upload the monitoring data collected offline to the selected OBM database server. Once connected to a server, the app downloads the background data needed to work offline. Key features: - Use of custom monitoring forms for different monitoring programs. - Offline use: recording observation data without an internet connection. - Collection of spatial data: recording of the location of living organisms and habitats using maps or recording of location data. - Record location in the background to create a tracklog to measure search effort or record the shape of habitats. - Upload monitoring data and tracklogs to the destination server if an Internet connection is available. - Map display of tracklogs and recorded data. - Support for the use of custom language versions. - Fast data entry thanks to many auxiliary functions, such as autocompletion of lists; recent searches; pre-filled items; and customizable form field history,

Screenshots

Black Audio Tool4 screens
OpenBioMaps Forms4 screens

Verdict

The call

The clearest difference is price: OpenBioMaps Forms at Free against Black Audio Tool's $1.99. OpenBioMaps Forms also leads on update cadence (weekly vs every 24 months). Black Audio Tool's advantage is iOS requirement (15.6 vs 17.0). On ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

OpenBioMaps Forms is free to download; Black Audio Tool costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Black Audio Tool ships an update every 24 months, OpenBioMaps Forms weekly. The most recent releases landed on August 24, 2026 and September 12, 2026 respectively.

Scorecard3 real differences · 7 level
Black Audio Tool versus OpenBioMaps Forms: the parameters behind the verdict, then further details
ParameterBlack Audio ToolOpenBioMaps Forms
Price$1.99Free — better
Rating5.0 (7 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings7 — better—
Update frequencyEvery 24 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better17.0
Further details — not scored
Size1 MB45 MB
Age rating4+4+
DeveloperPhilippe ZayECOLLAB

In-app purchases

None

Black Audio Tool

No in-app purchases

None

OpenBioMaps Forms

No in-app purchases

Questions

Is Black Audio Tool free?
Black Audio Tool costs $1.99, with no in-app purchases.
Is OpenBioMaps Forms free?
OpenBioMaps Forms is free to download, with no in-app purchases.
Do Black Audio Tool or OpenBioMaps Forms have ads?
Neither Black Audio Tool nor OpenBioMaps Forms shows ads.
Which is updated more often, Black Audio Tool or OpenBioMaps Forms?
Black Audio Tool ships an update every 24 months, and OpenBioMaps Forms weekly. Most recently, Black Audio Tool was updated on August 24, 2026 and OpenBioMaps Forms on September 12, 2026.

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