# 志愿通App vs LingGrid

The clearest difference is iOS requirement: 志愿通App at 11.0 against LingGrid's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

志愿通App ships an update every 2 weeks, LingGrid every 9 days. The most recent releases landed on October 11, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | 志愿通App | LingGrid |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/linggrid/id6774998894/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 9 days** |
| Monetization | — | Free |
| Size | 60 MB | 4 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Beijing Tianhua Online Education Technology Co. Ltd.](https://appshunter.io/developer/1239171073) | [华明 罗](https://appshunter.io/developer/1670053427) |

## What reviewers say

### 志愿通App

[App page](https://appshunter.io/ios/app/app/id6480396826)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### LingGrid

[App page](https://appshunter.io/ios/app/linggrid/id6774998894)

This app provides a secure digital backup for physical dynamic password cards used for the Jiangsu Gaokao. It allows users to scan or import card images, save encrypted data locally, and quickly look up codes by selecting coordinates. Designed to reduce stress during critical post-exam processes.

**Highlights:** Scan physical password cards, Import photos from album, Recognize 8x8 password grid, Save encrypted data locally, Quick code lookup by coordinates, Digital backup for password cards

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 志愿通App free?

志愿通App is free to download, with no in-app purchases.

### Is LingGrid free?

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

### Do 志愿通App or LingGrid have ads?

Neither 志愿通App nor LingGrid shows ads.

### Which is updated more often, 志愿通App or LingGrid?

志愿通App ships an update every 2 weeks, and LingGrid every 9 days. Most recently, 志愿通App was updated on October 11, 2026 and LingGrid on October 8, 2026.

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