J vs Start From Zero
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
J
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J-Lin Infinity Studio 傑漾勁能線上預約 集結各界菁英體適能運動專業師資， 提供各項專業訓練/運動/舞蹈線上及實體課程，體適能活動 串連菁英優秀師資/各市健身會館，何時何地皆能輕鬆線上預約。 誠摯歡迎享動愛動的你們！共同創造無限大的活力勁能量！一起J漾動吧！
Start From Zero
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Simplified calendar and seamless booking system for all our dance enthusiasts. The Pass Down (TPD) was founded in 2012 by a passionate new-generation team of cross-disciplinary professionals dedicated to excellence in dance and performance. We take pride in the expertise of our instructors and dancers. More than just teaching technique, our dance instructors instill core values and a deep appreciation for dance culture. They create an environment where you can refine your skills, stay true to the art, and enjoy the journey—blending hard work with the joy of dance. Led by the TPD team, Start From Zero goes beyond dance training. We provide professional coaching for the entertainment industry, helping aspiring performers hone their talents and gain recognition from talent agencies. Whether you're just starting out or pursuing a career in dance and entertainment, we’re here to support your journey—from zero to infinite possibilities.
Screenshots
Verdict
The clearest difference is update cadence: Start From Zero at monthly against J's every 3 months. J's advantage is iOS requirement (13.0 vs 15.0). 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.
J ships an update every 3 months, Start From Zero monthly. The most recent releases landed on October 4, 2026 and October 3, 2026 respectively.
| Parameter | J | Start From Zero |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 81 MB | 170 MB |
| Age rating | 17+ | 4+ |
| Developer | weichieh lin | Michael Westman |
In-app purchases
J
No in-app purchases
Start From Zero
No in-app purchases
