3 Grab vs Chemrix
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
3 Grab
This app allows dealers to register SIM cards online for Lao PDR, fulfilling regulatory obligations. It offers a digital alternative to paper-based registrations, saving time and costs. Users can select mobile operators, upload documents, and track registration status.
- Online SIM card registration
- Supports all mobile operators
- Digital alternative to paper
- Secure login
- SMS notifications for status
- Review and edit before submission
Read full descriptionHide full description
3Grab is online Simcard registrations for Lao PDR. Dealers can download and register your subscriber Simcard online, anywhere, anytime to fulfill regulatory obligation and compliance with law. Simple 3 steps to register your customer with their mobile operators 1. Log-in and select mobile operator 2. Take photos of supporting documents, fill out registrant information 3. Review, submit, then your customer will receive SMS notification of approve/reject within 5-7 days For VDO dem please visit https://simreg.gov.la/Dealer Features: - alternative channel to paper based registrations; safe cost of your printing, mailing, time, with no hassle to be in the line to register your customer with mobile operators - Can select all available mobile operator to register your customer - secure log-in - support registrations of prepaid, postpaid, netsim for all packages and mobile operators - SMS Notification shall be sent from mobile operator for the KYC result - Can review and edit before submit application - Customer can check their result by dealing #1021* for all operators
Chemrix
Read full descriptionHide full description
Master essential math, physics and chemistry formulas with Chemrix. Look up formulas effortlessly for daily study, then take quizzes to test how well you’ve learned them. A handy all-in-one tool for students and science learners.
Screenshots
Verdict
The clearest difference is ads: 3 Grab at none against Chemrix's shown. 3 Grab also leads on iOS requirement (12.0 vs 15.0). Chemrix's advantage is update cadence (weekly vs every 7 months). On price, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
3 Grab ships an update every 7 months, Chemrix weekly. Both last shipped on October 24, 2026.
| Parameter | 3 Grab | Chemrix |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 7 months | Weekly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 65 MB | 8 MB |
| Age rating | 4+ | 17+ |
| Developer | Ministry Of Post And Telecommunications of Lao PDR | 亚涛 冯 |
In-app purchases
3 Grab
No in-app purchases
Chemrix
No in-app purchases









