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Average Ratings 0 Ratings

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ease
features
design
support

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Description

UnderPeaks is a headless CMS designed with developers in mind, enabling the creation of production-ready applications for both Flutter and Next.js directly from a single content model. Founders can establish their data architecture a single time, and UnderPeaks will produce fully functional source code for both a mobile and a web application based on that unified schema. The platform offers compatibility with five different database backends—Supabase, PostgreSQL, MySQL, MongoDB, and Firebase—utilizing a common adapter layer to prevent vendor lock-in. Users can choose between UnderPeaks Core, which is a free, open-source option intended for self-hosting, and UnderPeaks Studio, a managed service that takes care of hosting. Created by a solo founder located in George, South Africa, UnderPeaks is tailored for developers and agencies who want to construct both mobile and web applications using the same foundational data. This innovative approach streamlines the development process and enhances efficiency across different platforms.

Description

Audible's ACX outlines a total of eight technical standards, and any file that fails to meet even one of them is promptly rejected. Chapterpass meticulously prepares each chapter file to comply with these specifications, ensuring RMS loudness is maintained between -23 and -18 dBFS, peaks are capped at below -3 dBFS, the noise floor is under -60 dBFS RMS, and room tone is present at both the beginning and end, all while outputting a 192 kbps CBR MP3. Every file is reviewed for compliance with the complete specifications before it is made available for download, and users can see the actual measurements aligned with each requirement for all checkpoints. The processing is conducted within the user's browser via WebAssembly technology, guaranteeing that the audio files remain on the user's device throughout the process. There is no need to set up an account to use the service; the first file is complimentary, with subsequent charges of $36 per finished hour, $27 for five or more hours, and $18 for ten or more hours, all billed by the second. Additionally, a free measurement tool can be accessed at /free-acx-check, which evaluates the loudness, peak levels, noise floor, and silence padding against the specifications without conducting any mastering. Chapterpass is dedicated to mastering the necessary technical standards, although it does not perform any editing, noise removal, or corrections to narration. This ensures a streamlined process for creators looking to comply with ACX requirements efficiently.

API Access

Has API No 

API Access

Has API No 

Screenshots View All

Screenshots View All

No images available

Integrations

Resend Yes 

Integrations

Resend No 

Pricing Details

$18/month
Free Trial No 
Free Version Yes 

Pricing Details

$36 per finished hour
Free Trial No 
Free Version Yes 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App Yes 
iPad App Yes 
Android App Yes 
Windows Yes 
Mac Yes 
Linux No 
Chromebook No 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Customer Support

Business Hours Yes 
Live Rep (24/7) No 
Online Support Yes 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Types of Training

Training Docs Yes 
Webinars Yes 
Live Training (Online) Yes 
In Person No 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Vendor Details

Company Name

UnderPeaks

Founded

2026

Country

South Africa

Website

underpeaks.com

Vendor Details

Company Name

chapterpass

Founded

2026

Country

Italy

Website

chapterpass.com

Product Features

Product Features

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