The Easiest Ever Voice Recorder to Manage Long Recordings

Description

Altfast is an easy iOS voice recorder that allows users to trim, edit, and share recordings. The solution supports M4A and WAV formats and has a reminder function.

Software

Xcode, Jira, SourceTree, Figma, Sketch

Repository

Git, Bitbucket, GitFlow

Project architecture

MVVM

Code

Swift 5.2, CoreData, AVFoundation, SPM, UIKit

Our role and company services

UI/UX Design, Mobile Development, QA

The challenge

The Client's idea was an easy and user-friendly voice recorder. The Rocketech team built the solution from scratch, elaborating the app's logic and considering the Client's requirements. Our task was to revisit the audio editing system and introduce the automatic silence trimming function.

We, however, faced another challenge — the Client required our leading developer to solve an urgent problem in another project. It caused the launch delay and may have significantly impacted the outcome and budget as these circumstances shifted the project's timing.

The solution

The Rocketech team developed a lightweight, easy, and user-friendly voice recorder with several specific features.

Revisited audio editor logic
The solution automatically trims silence in the user's recordings. A new visual kit allows editing long recordings. Based on the merging technology, the application allows users to resume already existing recordings easily.

Noise reduction
We created a purpose-specific algorithm for noise reduction. It uses the trimming silence feature and creates a sequence of shorter tracks merged into one recording.

Easy to listen
Users can listen to the entire recording or their parts. Without going into the editor mode, the app allows controlling volume and speed. There are eight options for the recording speed — up to three times faster or slower.

Easy to share
The application provides multiple sharing options via available messengers or the iPhone standard option "Save to Files".

Easy to edit
A user-friendly audio editor has a smooth slider to scroll the recording to the required part. Users can effortlessly trim and split any parts of their recordings. The system tracks the slider coordinates and transforms them into timestamps measured in seconds.

Reminder function
Users can set reminders for specific times and dates indicating when they need to make a recording. The app sends a push notification that automatically redirects the user to the voice recorder bypassing other screens — it's ready to start recording. The entire list of reminders is available at any time.

Start your project

Tell us what you're building, and we'll help you find the fastest path from idea to launch.

Book a discovery call

Results

The Rocketech team created a user-friendly voice recorder with a complex, dynamic UI and an innovative audio editing system that automatically trims silence and easily manages even long recordings. A specially created merging algorithm makes audio editing fast and simple.

Timely and on-budget delivery
Despite the project launch delay, we introduced a fully-developed product on time and within the agreed budget. The circumstances did not impact our work and desired results in any way.

Real-time voice preview
While recording, users can see real-time sound fluctuations. We implemented audio rendering through a visual representation on screen.

No back-end solution
Since the solution was developed without back-end architecture, it doesn't require any registration process. It also helped save time and resources invested into the project.

Easily scalable
The solution is flexible and easily scalable. In practical terms, it means the Client can easily implement extra functionality in the future.

Database integration
The file system saves audio tracks inside the application and uses the device's internal storage. It means only the device's storage capacity limits the number of recordings.

See more cases

EasySpk

AI / Productivity · mobile app

EasySpk is an iPhone keyboard that turns speech into clean, ready-to-send text in any app. We came up with the name, designed the brand, the app and the landing page, built the AI part and shipped the first release in 2 weeks. It got 1,000+ downloads in its first days.

GhostMinutes

AI / Productivity · web and mobile app

GhostMinutes turns meetings and calls into text and AI summaries. We built it from scratch for a serial founder: the name, the brand, an iOS app in 2 weeks, a web app 1 week later and the speech AI behind both. The product reached $1,500 MRR.

IPOPBOOKS

FinTech / AI · web app

IPOPBOOKS does the books for small US businesses: AI sorts every bank transaction and a bookkeeper checks it. We built the client portal, the bookkeeper workspace, the admin panel and the website, and launched in 10 weeks, ready to take payments.

YOU(th)

HealthTech · web and mobile app

YOU(th) is a wellness app that uses AI and smartphone sensors to run a quick, non-invasive health check in under two minutes. No wearables, no clinic visits. It analyzes face videos, voice samples, and eye images to track over 50 wellness biomarkers and detect early signs of health risks.

AggloPay

FinTech · web app

AggloPay is a modern payment platform designed around the way merchants in Cameroon operate. It brings together mobile money, bank cards, and USSD into one system — no extra accounts, no manual workarounds. We took the project from first sketches to a working product in two months, covering design, development, and integrations with local payment services.

WTF

FinTech / WealthTech · web and mobile app

Managing a fund for high-net-worth individuals comes with unique challenges — standard SaaS solutions often fall short of delivering the flexibility and sophistication required. Our client, a fund with $100M in assets, needed a system capable of handling both fiat and cryptocurrency transactions, integrated trading functionality, and fast, AI-powered reporting to provide investors with detailed performance insights.

Guestroom

Social · mobile app

Guestroom is a bespoke social media platform and mobile app connecting creators with their followers, allowing artists to monetize their content. In a nutshell, it's a startup and unique social network where creators can share exclusive text and photo content, and followers can pay for access.

RPS Millionaire

GameTech / Blockchain · web and mobile app

RPS Millionaire reimagines the timeless game of Rock Paper Scissors (RPS) into a thrilling digital experience. It encapsulates the nostalgic simplicity of childhood gameplay while introducing an enticing twist — the opportunity to win one million dollars. Players can cash out their winnings at every fifth round or continue their quest for the ultimate prize.

Start your project

Tell us what you're building, and we'll help you find the fastest path from idea to launch.

Book a discovery call

Talk to us!

Send us a message and we'll get in touch with you as soon as we can.