# Student Lifeline vs One Kanji Clock

The clearest difference is ads: Student Lifeline at none against One Kanji Clock's shown. Student Lifeline also leads on update cadence (every 2 days vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Student Lifeline sells 1 in-app purchase, starting at $12.00 per year and One Kanji Clock sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Student Lifeline ships an update every 2 days, One Kanji Clock every 2 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Student Lifeline | One Kanji Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (4 ratings)](https://appshunter.io/ios/app/student-lifeline/id6451145839/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Every 2 months |
| Monetization | Subscription | — |
| Size | 31 MB | 18 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Noble & Masters Marketing Inc](https://appshunter.io/developer/1696952807) | [Mihoko Araki](https://appshunter.io/developer/1476136915) |

## What reviewers say

### Student Lifeline

[App page](https://appshunter.io/ios/app/student-lifeline/id6451145839)

This app provides a safety tool for students and others, allowing them to send SOS alerts with their location to pre-set emergency contacts. It prioritizes privacy and aims to offer peace of mind and a sense of security.

**Highlights:** SOS alerts to emergency contacts, Real-time location sharing, Up to three trusted contacts, Privacy-focused data handling, Annual subscription for full access

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly Subscription | $12.00 | per year |


### One Kanji Clock

[App page](https://appshunter.io/ios/app/one-kanji-clock/id6468893847)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One Kanji Clock with no ads | $2.99 | one-time |


## Frequently asked questions

### Is Student Lifeline free?

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

### Is One Kanji Clock free?

One Kanji Clock is free to download, with in-app purchases available.

### Do Student Lifeline or One Kanji Clock have ads?

One Kanji Clock shows ads; Student Lifeline does not.

### Which is updated more often, Student Lifeline or One Kanji Clock?

Student Lifeline ships an update every 2 days, and One Kanji Clock every 2 months. Most recently, Student Lifeline was updated on November 3, 2026 and One Kanji Clock on November 3, 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.*