# SeenLog vs Yazaki One

The clearest difference is in-app purchases: Yazaki One at none against SeenLog's 10. Yazaki One also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 5 weeks). SeenLog's advantage is iOS requirement (12.4 vs 17.0). On price and device support there is nothing between them.

Both are free to download. SeenLog sells 10 in-app purchases, starting at $6.99 per 7 days. Yazaki One asks for nothing beyond the download.

SeenLog ships an update every 5 weeks, Yazaki One every 2 weeks. Both last shipped on September 26, 2026.

## The numbers

| Metric | SeenLog | Yazaki One |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (4.8K ratings)](https://appshunter.io/ios/app/seenlog-activity-tracker/id6469732644/reviews)** | — |
| Number of ratings | **4.8K** | — |
| Positive reviews | 46.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 52 MB | 83 MB |
| Requires iOS | **12.4** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ABDULVAHIT CELIK](https://appshunter.io/developer/1737765088) | [Yazaki North America, Inc](https://appshunter.io/developer/1872145394) |

## What reviewers say

### SeenLog

[App page](https://appshunter.io/ios/app/seenlog-activity-tracker/id6469732644)

This app assists parents in monitoring and managing their children's digital activities. It offers tools to track app usage, set time limits, and gain insights into screen time habits, promoting a balanced relationship with technology.

**Highlights:** Activity Reports, Parental Controls, Time Limits, Monthly Insights, Privacy & Security

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WaSeener PRO+ Weekly | $6.99 | per 7 days |
| WaSeener PRO+ Monthly | $6.99 | per month |
| SeenLog Weekly Offer | $6.99 | per 7 days |
| SeenLog Premium+ Weekly | $7.99 | per 7 days |
| SeenLog - Weekly PRO+ | $8.99 | per 7 days |
| WaSeener PRO+ Monthly | $14.99 | per month |
| SeenLog PRO+ Annual | $14.99 | per year |
| SeenLog Annual | $14.99 | per year |
| SeenLog Premium+ Annual | $19.99 | per year |
| SeenLog PRO+ Yearly | $24.99 | per year |

**What reviewers like**

- 👍 Useful app to track contacts
- 🚀 Easy to use
- 💡 Innovative features

**What reviewers complain about**

- 🐛 App crashes frequently
- 🔒 Security and privacy concerns
- 💰 Expensive subscription
- 🔋 Drains battery quickly

**Reported bugs**

- Unable to connect WhatsApp account
- Blank screen after login
- Incorrect online status information

**Requested features**

- Ability to view chat history
- More detailed activity reports
- Free trial period


### Yazaki One

[App page](https://appshunter.io/ios/app/yazaki-one/id6748957518)

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

**In-app purchases:** none


## Frequently asked questions

### Is SeenLog free?

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

### Is Yazaki One free?

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

### Do SeenLog or Yazaki One have ads?

SeenLog shows ads; Yazaki One does not.

### Which is updated more often, SeenLog or Yazaki One?

SeenLog ships an update every 5 weeks, and Yazaki One every 2 weeks. Most recently, SeenLog was updated on September 26, 2026 and Yazaki One on September 26, 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.*