Catbus Parent vs OLM Marker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Catbus Parent
Read full descriptionHide full description
Catbus Parent is designed to provide visibility into your child’s education at a glance. Catbus Parent allows parents to: View assignment descriptions and due dates Set reminders for assignments View assignment grades View course grades Set grade alerts View course announcements
OLM Marker
Read full descriptionHide full description
Ứng dụng miễn phí giúp giáo viên chấm điểm trắc nghiệm một cách dễ dàng nhất
Screenshots
Verdict
The clearest difference is update cadence: OLM Marker at every 3 weeks against Catbus Parent's every 22 months. On price, ads, 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.
Catbus Parent ships an update every 22 months, OLM Marker every 3 weeks. The most recent releases landed on May 16, 2026 and September 20, 2026 respectively.
| Parameter | Catbus Parent | OLM Marker |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 22 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 13.5 |
| Further details — not scored | ||
| Size | 27 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | COHOTA JOINT STOCK COMPANY | Tho Ha Duc |
In-app purchases
Catbus Parent
No in-app purchases
OLM Marker
No in-app purchases
Questions
Is Catbus Parent free?
Is OLM Marker free?
Do Catbus Parent or OLM Marker have ads?
Which is updated more often, Catbus Parent or OLM Marker?
Other comparisons
