ERYA vs JT606 Calibration Tool
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ERYA
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ERYA是一款专门开发给自由潜水入门者学习及练习法兰佐耳压平衡的智能硬件。 配合此应用使用，用户可以通过教学模式，轻松测试和学习法兰佐。
JT606 Calibration Tool
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The JT606 Calibration Tool is an APP that performs command operation and maintenance for JT606 devices developed by the company itself.
Screenshots
Verdict
The clearest difference is iOS requirement: ERYA at 11.0 against JT606 Calibration Tool's 15.6. On price, update cadence, ads and in-app purchases 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.
ERYA ships an update every 2 months, JT606 Calibration Tool every 3 months. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.
| Parameter | ERYA | JT606 Calibration Tool |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 11.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 75 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | 杰军 张 | SHENZHEN JOINT TECHNOLOGY CO.,LTD |
In-app purchases
ERYA
No in-app purchases
JT606 Calibration Tool
No in-app purchases
