Drawings, inspection, safety — on one iPad
Three apps by YSL Solution (Japan), built with Kajima, Toda, Takenaka and Nishimatsu. Not a tool that “can”, but one “the whole site can use”.
- Works offline
- No setup fee
- AWS infrastructure

Familiar jobsite bottlenecks
Building from old drawings
Unsure which is latest → rework.
Manual notes
Handwritten, retyped at night.
Slow instructions
Found in the morning, received in the afternoon.
Uncontrolled photos
Thousands of chat photos, no location.
Inspection paperwork
Forms and albums done by hand.
Wasted trips
Back to the office for drawings.
Three apps for three jobs
Each app has just 4 core features — anyone can use it after one session.

View, mark up, share, export drawings & photos
- Latest drawings for everyone, even offline
- Pin photos & notes on the drawing
- Create forms & albums on site

Enter, manage, share, export punch items
- Log a defect in 2 taps
- Pin colors show status
- Auto-split by subcontractor

Instant instructions on safety patrols
- Send on the spot with photo & 30s voice
- Red / yellow / green at a glance
- Auto Excel/CSV reports
Numbers from real projects
Preparing punch lists for subcontractors.
No printing or manual compiling — ≈ ₫1.4B saved.
Measurement work halved by digitizing end-to-end.
Overtime on one project.
360° photo checks reduce accident risk.
Safety patrols via status-colored pins.
Per project, per month
Server storage + per-user ID fee. No setup fee.
| Product | Server / month | ID / user / month |
|---|---|---|
| CheX | 5GB — 865.000 ₫ | 519.000 ₫ → 260.000 ₫ (volume discount) |
| LAXSY | 1GB — 173.000 ₫ | 1.730.000 ₫ (1–10 ID) · 1.211.000 ₫ (11+ ID) |
| AQuick | 1GB — 173.000 ₫ | 104.000 ₫ |
VND prices at 173 ₫/¥ (08/2026), excl. VAT. Bundle all 3: AQuick free.
From first call to daily use
Survey
Discuss your site, pick what to digitize first.
Demo
Demo on your own project drawings.
Setup
Projects, permissions, drawings & masters.
Train & run
Training for managers, supervisors, subs.
FAQ
Does it work without internet?
Yes. Pre-downloaded drawings work offline; sync when online.
Is Vietnamese supported?
LAXSY has Vietnamese; CheX JA/EN/ZH; AQuick JA/EN. Docs & support in Vietnamese.
How many devices per ID?
1 ID = 1 person, unlimited devices.
Minimum term?
From 1 month; scale storage and IDs anytime.
A demo on your own drawings
We reply within 1 business day to schedule a session.
- ✉Email[email protected]
- ☎Phone0867 831 368
- 📄BrochurePDF · Báo giá chi tiết / 見積り / Quote