# Tiantong Modem vs 信析

The clearest difference is in-app purchases: Tiantong Modem at none against 信析's 3. Tiantong Modem also leads on update cadence (fortnightly vs every 2 months) and iOS requirement (13.1 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. 信析 sells 3 in-app purchases, starting at $0.99 per month. Tiantong Modem asks for nothing beyond the download.

Tiantong Modem ships an update fortnightly, 信析 every 2 months. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Tiantong Modem | 信析 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Free | — |
| Size | 86 MB | 2 MB |
| Requires iOS | **13.1** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CHINA TELECOM Corporation Ltd.](https://appshunter.io/developer/513836032) | [朝军 余](https://appshunter.io/developer/1810122551) |

## What reviewers say

### Tiantong Modem

[App page](https://appshunter.io/ios/app/tiantong-modem/id6578450401)

This satellite communication software allows you to stay connected via satellite links when cellular service is unavailable. It ensures safety and connectivity in remote areas without network infrastructure.

**Highlights:** Satellite communication, Offline connectivity, Remote area access, Safety features, Network independent

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

**In-app purchases:** none


### 信析

[App page](https://appshunter.io/ios/app/ai/id6759789097)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 信析月度会员 | $0.99 | per month |
| 信析年度会员 | $0.99 | per year |
| 信析永久会员 | $0.99 | one-time |


## Frequently asked questions

### Is Tiantong Modem free?

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

### Is 信析 free?

信析 is free to download, with in-app purchases available.

### Do Tiantong Modem or 信析 have ads?

Neither Tiantong Modem nor 信析 shows ads.

### Which is updated more often, Tiantong Modem or 信析?

Tiantong Modem ships an update fortnightly, and 信析 every 2 months. Most recently, Tiantong Modem was updated on October 30, 2026 and 信析 on October 25, 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.*