# TCI Bitacora vs 短信狗卫士

The clearest difference is price: TCI Bitacora at Free against 短信狗卫士's $0.99. TCI Bitacora also leads on iOS requirement (11.0 vs 14.0). 短信狗卫士's advantage is update cadence (every 5 days vs fortnightly). On ads, in-app purchases and device support there is nothing between them.

TCI Bitacora is free to download; 短信狗卫士 costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

TCI Bitacora ships an update fortnightly, 短信狗卫士 every 5 days. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | TCI Bitacora | 短信狗卫士 |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6447949251/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 5 days** |
| Size | 45 MB | 9 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Armando Montellano](https://appshunter.io/developer/1455567990) | [珍珍 张](https://appshunter.io/developer/1607946529) |

## What reviewers say

### TCI Bitacora

[App page](https://appshunter.io/ios/app/tci-bitacora/id1464209780)

**Features:** macOS Compatibility

**In-app purchases:** none


### 短信狗卫士

[App page](https://appshunter.io/ios/app/id6447949251)

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

**In-app purchases:** none


## Frequently asked questions

### Is TCI Bitacora free?

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

### Is 短信狗卫士 free?

短信狗卫士 costs $0.99, with no in-app purchases.

### Do TCI Bitacora or 短信狗卫士 have ads?

Neither TCI Bitacora nor 短信狗卫士 shows ads.

### Which is updated more often, TCI Bitacora or 短信狗卫士?

TCI Bitacora ships an update fortnightly, and 短信狗卫士 every 5 days. Most recently, TCI Bitacora was updated on October 26, 2026 and 短信狗卫士 on October 24, 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.*