# 天書 vs ServiceJDC

The clearest difference is update cadence: ServiceJDC at fortnightly against 天書's every 6 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

天書 ships an update every 6 months, ServiceJDC fortnightly. The most recent releases landed on October 20, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | 天書 | ServiceJDC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/servicejdc/id1150960906/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 27.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Fortnightly** |
| Monetization | — | Freemium |
| Size | 28 MB | 58 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [恵鴻資訊](https://appshunter.io/developer/448261969) | [Mercuries Data System Ltd.](https://appshunter.io/developer/428884377) |

## What reviewers say

### 天書

[App page](https://appshunter.io/ios/app/id448261966)

**Features:** Vision Pro support

**In-app purchases:** none


### ServiceJDC

[App page](https://appshunter.io/ios/app/servicejdc/id1150960906)

This cloud-based platform streamlines field staff operations for businesses. It offers comprehensive tools for attendance, payroll, task management, reporting, and customer interactions, accessible via web and mobile apps.

**Highlights:** Attendance management, Positioning check-in, Payroll calculation, Task assignment, Work reporting, E-forms, Mobile approval, Customer management

**In-app purchases:** none


## Frequently asked questions

### Is 天書 free?

天書 is free to download, with no in-app purchases.

### Is ServiceJDC free?

ServiceJDC is free to download, with no in-app purchases.

### Do 天書 or ServiceJDC have ads?

Neither 天書 nor ServiceJDC shows ads.

### Which is updated more often, 天書 or ServiceJDC?

天書 ships an update every 6 months, and ServiceJDC fortnightly. Most recently, 天書 was updated on October 20, 2026 and ServiceJDC on October 21, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*