Independent app studio
Build simple. Deliver value.
SimpleBuild is the independent studio of Angelo Sasso: apps for iPhone, iPad and Mac.
apps
The apps
9 free apps on the App Store, for iPhone and iPad. 5 more are on the way.
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Rally Chrono
Stopwatch for regularity rallies
The stopwatch for co-drivers in regularity rallies, including historic cars: you set the sectors with their target times and the app shows the gap in real time, with a color you can read at a glance.
Free on the App Store: Rally Chrono ↗ Details about Rally Chrono →
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WikiMoon
Calendar, phases and fun facts
A small poetic atlas of the Moon: each day's phase, age, illumination, moonrise and moonset, with a lunar calendar and an encyclopedia you can browse even offline.
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LookAt: Concert Sign
Be seen from the back row
Turns your phone into a concert sign that can be read from far away: letters sized by their actual height and color pairs chosen by measuring their contrast.
Free on the App Store: LookAt: Concert Sign ↗ Details about LookAt: Concert Sign →
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YourCollage
Beautiful collages in seconds
Combines 2 to 9 photos and videos into a collage ready for social media, with 35 layouts and the audio of multiple videos mixed automatically.
Free on the App Store: YourCollage ↗ Details about YourCollage →
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Voice Generator TTS
Your Voice Generator
Turns text into audio files with the system voices, entirely on the device: no ads, no account, no subscriptions.
Free on the App Store: Voice Generator TTS ↗ Details about Voice Generator TTS →
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ApexShot
Freeze fast motion, tack-sharp
A camera for fast-moving subjects such as motorsport, sports and wildlife: it keeps a fast shutter speed and picks the sharpest frame on its own.
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Colorimeter
Camera HEX, RGB & Lab reader
A pocket colorimeter: point the camera at a surface and read the color values right away, or sample your photos, with calibration on a gray card.
Free on the App Store: Colorimeter ↗ Details about Colorimeter →
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Pagewell Nightjar
Private personal journal
A simple, private journal with no account: mood, emotions and photos every day in a few taps, with a calendar, memories and Face ID lock.
Free on the App Store: Pagewell Nightjar ↗ Details about Pagewell Nightjar →
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VerseOn
The Holy Bible, offline
The complete Bible in the Italian Riveduta (Luzzi) version, 66 books you can read without a connection, laid out like a printed book.
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FontKit
From paper to .ttf and .otf
Turns your handwriting into a font: write the alphabet on a sheet of paper and photograph it, or draw the letters with your finger, and the app makes a .ttf and .otf file to install on your computer or use in design apps.
Coming soon to the App Store Details about FontKit →
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QR Master
QR codes with your logo, forever
Creates custom QR codes, with your logo, colors and a frame inviting people to scan, and checks that they scan before you print them. The codes are static: with no service in between, they never expire.
Coming soon to the App Store Details about QR Master →
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Foldami
Fold the phone to fold paper
Teaches origami one step at a time. On iPhone Duo the hinge is the fold: close the phone a little and the paper on screen folds with it. On any other iPhone and on iPad you fold with a finger.
Coming soon to the App Store Details about Foldami →
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Pre-Capture
The dashcam that starts earlier
A dashcam for iPhone that also records the seconds before you hit REC. It splits the trip into 2-minute files and burns date and time, vehicle, plate and GPS position into the video.
Coming soon to the App Store Details about Pre-Capture →
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AsciiCam
Live video, drawn in letters
An iPhone camera that redraws what you point it at in ASCII characters, as you move. Take a still or record up to 15 seconds, and turn the clip into a GIF.
Coming soon to the App Store Details about AsciiCam →
on-the-bench
On the bench
The app SimpleBuild is building right now, with its work order.
websites
Websites we built
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Website with admin panel · 2026
Altomare Immobiliare
Bilingual website for a real estate agency: listings, a magazine and a custom admin panel where the agency publishes properties and articles on its own, with photos optimized automatically.
Visit the website of Altomare Immobiliare ↗ The project Altomare Immobiliare → -

Online magazine and dedicated server · 2026
VeloSide
Cycling magazine with articles, an archive of GPX routes, a race calendar and a readers area, on a virtual server set up from scratch.
Visit the website of VeloSide ↗ The project VeloSide →
tools
Tools of the trade
- Swift
- SwiftUI
- UIKit
- SwiftData
- Observation
- CloudKit
- StoreKit
- WidgetKit
- App Intents
- TipKit
- MapKit
- Core Location
- AVFoundation
- PhotosUI
- Core Image
- Vision
- Metal
- SceneKit
- Charts
- Core Graphics
- Core Text
- PDFKit
- QuickLook
- EventKit
- User Notifications
- Local Authentication
- CryptoKit
- Foundation Models
- PHP
- Python
- JavaScript
- WebGL
- GLSL
- HTML and CSS
- SQLite
- Bash
- Software and services: Xcode
- Software and services: XcodeGen
- Software and services: Instruments
- Software and services: Simulator
- Software and services: TestFlight
- Software and services: App Store Connect
- Software and services: Git
- Software and services: GitHub
- Software and services: Node.js
- Software and services: Docker
- Software and services: Caddy
- Software and services: Linux
- Software and services: fail2ban
- Software and services: Let's Encrypt
- Software and services: Blender
- Software and services: Illustrator
- Software and services: Icon Composer
- Software and services: Premiere Pro
- Software and services: Ableton Live
- Software and services: ffmpeg
- Software and services: Playwright
- File formats: .svg
- File formats: .png
- File formats: .jpeg
- File formats: .heic
- File formats: .webp
- File formats: .tiff
- File formats: .pdf
- File formats: .ai
- File formats: .psd
- File formats: .icon
- File formats: .ttf
- File formats: .otf
- File formats: .gpx
- File formats: .blend
- File formats: .fbx
- File formats: .glb
- File formats: .usdz
- File formats: .stl
- File formats: .3mf
- File formats: .wav
- File formats: .mp3
- File formats: .m4a
- File formats: .mp4
- File formats: .mov
- File formats: .als
- File formats: .json
- File formats: .csv
- File formats: .xml
- File formats: .yaml
- File formats: .md
- File formats: .xcstrings
- File formats: .zip
about
About
SimpleBuild is the brand under which Angelo Sasso designs, builds and publishes his apps.
The SimpleBuild story →ssh angelo@angelosasso.it
Meet Angelo
The founder's personal website: IT support, websites and custom management software. It's where it all began.
Open angelosasso.it ↗