ARC-24 Multitrack Groovebox for iOS vs Onepin
Side-by-side comparison of features, pros & cons, pricing, and community votes (2026).
🏆 Onepin leads with 383 upvotes

Multitrack synth, sampler, drum machine, and looper for iOS.
ARC-24 Multitrack Groovebox for iOS is a versatile and intuitive music production app designed for musicians, producers, and hobbyists alike. It offers an eight-track studio environment on iPhone and iPad, allowing users to create full tracks with synths, drum kits, and customizable samples. Its key feature is the in-key pad system, which ensures that every note played is harmonically correct, making music creation accessible even for beginners. Users can record loops, layer sounds over existing tracks, edit notes on a grid, and arrange their compositions seamlessly. The app includes 10 drum kits, 21 synth presets, and 16 sampler pads, each with a full effects rack, providing extensive sound shaping options. With a straightforward one-time purchase, ARC-24 offers a powerful, no-subscription solution for music creation on the go, making it an excellent choice for mobile musicians and producers seeking a comprehensive yet easy-to-use multitrack environment.
Pros
- User-friendly interface with in-key pad system for easy musical harmony
- Wide variety of sounds including synths, drum kits, and customizable samples
- Full effects rack for sound shaping on every track
- No subscription required, one-time payment for full access
- Suitable for both beginners and experienced producers
Cons
- Limited to iOS devices, not available on Android or desktop
- May lack some advanced features found in professional DAWs
- No cloud storage or collaborative features integrated
Best for
- • Creating quick sketches and loops for song ideas
- • Building full tracks for electronic or hip-hop production
- • Practicing music composition in a harmonically correct environment
- • Sampling and remixing existing sounds or recordings
Pricing: Pricing not verified

AI voiceover with every name, price and date said right
Onepin is an innovative AI-powered voiceover tool designed to enhance the accuracy and efficiency of audio production. It integrates seamlessly with popular voice synthesis platforms like ElevenLabs, OpenAI, and Google, supporting over 30 voices to deliver natural-sounding speech. What sets Onepin apart is its ability to intelligently spell out prices and dates, check and correct mispronounced names against a comprehensive 4-million-word pronunciation dictionary, and score each line for quality. The platform also offers a unique feature: it can fix incorrect words without the need to re-render the entire take, saving time and resources. Built for teams producing multilingual content—such as product videos, dubbing, and online courses—Onepin streamlines the voiceover process, ensuring high accuracy and natural delivery. Its free-to-start model with no credit card required makes it accessible for various team sizes and project scopes.
Pros
- Supports integration with over 30 voice platforms including ElevenLabs and Google
- Automatically spells out prices and dates for clearer narration
- Checks and corrects mispronounced names using a vast pronunciation dictionary
- Scores and improves voiceover quality without re-rendering
- Free to start with no credit card required
Cons
- Limited information on pricing tiers and plans
- Potential learning curve for teams unfamiliar with pronunciation adjustments
- No details on collaborative or team management features
Best for
- • Producing multilingual product videos with accurate name pronunciations
- • Dubbing and localization projects requiring precise voiceovers
- • Creating educational content and online courses with natural-sounding narration
- • Generating voiceovers for marketing campaigns and advertisements
Pricing: Pricing not verified