# Sonic Carrier vs Yondazo

The clearest difference is update cadence: Sonic Carrier at every 5 weeks against Yondazo's every 6 months. Sonic Carrier also leads on iOS requirement (10.0 vs 18.0). 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.

Sonic Carrier ships an update every 5 weeks, Yondazo every 6 months. Both last shipped on October 9, 2026.

## The numbers

| Metric | Sonic Carrier | Yondazo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/yondazo-reading-tracker/id1547099179/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 6 months |
| Monetization | — | Ad-supported |
| Size | 214 MB | 7 MB |
| Requires iOS | **10.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Creative Technology Ltd](https://appshunter.io/developer/530115926) | [arakawa yuichiro](https://appshunter.io/developer/421879127) |

## What reviewers say

### Sonic Carrier

[App page](https://appshunter.io/ios/app/sonic-carrier/id1199332482)

**In-app purchases:** none


### Yondazo

[App page](https://appshunter.io/ios/app/yondazo-reading-tracker/id1547099179)

Track your reading progress with detailed charts and insights. Log books, add notes, and visualize your reading journey over time. Offers on-device AI analysis for private habit discovery.

**Highlights:** Monthly, yearly, and all-time reading charts, On-device AI reading habit analysis, Book notes, ratings, and genre tagging, Visual bookshelf with cover grid or list view, Barcode scanning for quick book entry, Data backup and transfer

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sonic Carrier free?

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

### Is Yondazo free?

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

### Do Sonic Carrier or Yondazo have ads?

Neither Sonic Carrier nor Yondazo shows ads.

### Which is updated more often, Sonic Carrier or Yondazo?

Sonic Carrier ships an update every 5 weeks, and Yondazo every 6 months. Most recently, Sonic Carrier was updated on October 9, 2026 and Yondazo on October 9, 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.*