Rnker vs DojoSync
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Rnker
This app serves as a digital hub for Taekwondo players, providing access to rankings, tournament information, and draw sheets. It aims to centralize essential data for practitioners and organizers within the sport.
- Taekwondo player rankings
- Tournament draw sheets
- Event management
- Digital hub for Taekwondo
- Player statistics
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Rnker, your digital hub for everything Taekwondo rankings, tournaments, draw sheets, and more! Terms of Use: https://rnker-web.pages.dev/rnker-terms-and-conditions.pdf
DojoSync
This app streamlines martial arts school operations, from tournament coordination and event management to family communication. It offers features for browsing events, managing student progress, and facilitating team chat, replacing multiple scattered tools with a single platform.
- Tournament and event browsing
- Family RSVP and payment tracking
- Belt testing registration and progress tracking
- Real-time team chat and announcements
- Student profile and membership management
- Lead management for schools
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DojoSync helps martial arts schools coordinate tournament attendance, manage events, and keep families connected — all in one app. TOURNAMENTS & EVENTS • Browse upcoming tournaments and school events • RSVP for your family with one tap • Track coaching fees and pay securely via Stripe • Get directions, chat with your team, and share photos BELT TESTING & PROGRESS • View your student's belt rank and promotion history • Register for belt tests and track results • See testing readiness and upcoming requirements STAY CONNECTED • Real-time tournament chat with your school team • Direct messages and group chats • School announcements with read receipts • Push notifications so you never miss an update FOR SCHOOL STAFF & COACHES • Manage student profiles, families, and memberships • Schedule and run belt tests with scoresheet printing • Track payments, attendance, and participation reports • Lead management and nurture sequences DojoSync replaces the scattered mix of Facebook groups, SignUpGenius, Google Calendar, and tournament websites with a single, purpose-built app for martial arts schools. Built for taekwondo, karate, BJJ, and any martial arts discipline.
Screenshots
Verdict
The clearest difference is rating: DojoSync at 5.0 against Rnker's 4.1. DojoSync also leads on in-app purchases (none vs 18) and update cadence (every 3 days vs weekly). Rnker's advantage is ratings volume (10 vs 2). On price, ads, device support and iOS requirement 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. Rnker sells 18 in-app purchases, starting at $4.99 per 7 days. DojoSync asks for nothing beyond the download.
DojoSync holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Rnker has 10 ratings behind it against 2, so its average is the more settled of the two.
Rnker ships an update weekly, DojoSync every 3 days. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.
| Parameter | Rnker | DojoSync |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (10 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 60.0% of reviews | — |
| Number of ratings | 10 — better | 2 |
| Update frequency | Weekly | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 49 MB | 52 MB |
| Age rating | 4+ | 4+ |
| Developer | Mohamed Elsergany | DojoSync, LLC |
Customer experience
Rnker
DojoSync
In-app purchases
Rnker
- Weekly; 1 month; 1 weight$4.997 Days
- Monthly; 1 month; 1 weight$11.991 Month
- 6 months; 1 month; 1 weight$59.996 Months
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- 6 months; 1 month; 2 weight$109.996 Months
- Yearly; 1 month; 1 weight$119.991 Year
- 6 months; 1 month; 3 weight$149.996 Months
- Yearly; 1 month; 3 weight$299.991 Year
- Yearly; 1 month; 6 weight$499.991 Year
- 6 months; 1 month; 6 weight$500.006 Months
- Yearly; 1 month; 10 weight$799.991 Year
- 5 Coins$7.99
- 10 Coins$14.00
- 25 Coins$30.00
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- 50 Coins$58.00
- 100 Coins$109.99
- 250 Coins$199.99
- 500 Coins$499.99
- 1,000 Coins$999.99
DojoSync
No in-app purchases
