# OSOI — One Source of Information

> One Source of Information (iPhone/iPad app by Dejan Jaksic.)

- Source: https://appshunter.io/ios/app/osoi/id6501978133 (this page in markdown: same URL + `.md`)
- Developer: [Dejan Jaksic](https://appshunter.io/developer/1660384911)
- Category: Productivity, Business
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 100 MB
- Languages: American English, German (Germany)
- Released: 2024-06-06
- Data updated: 2026-09-01
- User reviews in markdown: https://appshunter.io/ios/app/osoi/id6501978133/reviews.md

## What is OSOI?

OSOI – One Source of Information for Teams

Connect site and office. Communicate, manage tasks, write notes, share documents, track time, and stay updated—all in one place.


Why teams work better with OSOI:

• Every project, every job site, all in your pocket – See what’s done, what’s not, and what’s urgent across all your jobs.
• It’s simple – If your team knows how to use WhatsApp, they’ll know how to use OSOI. No complex training needed.
• It’s not just another chat app – It’s built for getting work done. Chat like always, but now tasks, timesheets, and updates stay organized.
• Quick check-in on everyone – See who’s on-site, who’s off-site, and what they’re working on. Save yourself hours of phone calls.
• Can’t be deleted. Can’t get lost – Every message, task, and document stays in OSOI. No more missing info, ever.
• Find everything fast – No more digging through emails, WhatsApp, or five different apps. Finish jobs faster.
• Invite clients and contractors with one click and share updates in seconds – No more back-and-forth calls or emails.
• No signal? No problem – Works offline and syncs automatically later.
• Every working hour recorded, every day – No chasing the team for timesheets. Invoice your customers faster.

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Download the app and join other teams already using and benefiting from OSOI. Visit www.osoi.io to learn more.

Need help? Reach out anytime at hello@osoi.io


## Version history (last 5 releases)

### 1.2.9 — 2026-08-29

Introducing Technician mode for anyone who works out in the field. 
• Start recording your work with a single tap and tap another task to switch right away
• Taking a break remembers what you were doing, so you can pick up where you left off with one tap
• A clear view of your day, with a large clock and your work and break totals at a glance
• Check and correct your recorded times on the spot
• A tidier home screen that keeps the focus on your work
Turn on Technician mode in your settings and try it on your next job.

OSOI is faster than ever.
• Task lists throughout the app open faster and keep working smoothly, even with a poor connection
• Choosing a project and recording your time is quicker than before
• Timesheets open faster and are easier to read

More control
• New notification settings
• See how much of your plan and storage your team is using
• A refreshed language selection
• The app now lets you know when a new version is available or required

### 1.2.6 — 2026-08-09

Performance improvements and smaller fixes.

### 1.2.5 — 2026-08-01

- A clearer task overview helps you see progress, statuses and checklist work at a glance.
- Improved time tracking makes it easier to manage working hours, breaks, absences, public holidays and overtime.
- Active and past contracts, vacation entitlements and carried-over balances are now easier to review.
- Chat, voice messages, files, notes, maps and project views have been refined for smoother everyday work.
- Improved notification and location controls give you more choice and clearer feedback.

### 1.2.4 — 2026-07-24

Stability and performance improvements.

### 1.2.1 — 2026-07-15

UI Improvements and performance optimizations.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-01.*