# タイムフリップスタディ vs Voice Marker Clock

The clearest difference is in-app purchases: タイムフリップスタディ at none against Voice Marker Clock's 4. タイムフリップスタディ also leads on update cadence (daily vs every 2 weeks). Voice Marker Clock's advantage is device support (4 vs 2). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Voice Marker Clock sells 4 one-off in-app purchases. タイムフリップスタディ asks for nothing beyond the download.

タイムフリップスタディ ships an update daily, Voice Marker Clock every 2 weeks. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | タイムフリップスタディ | Voice Marker Clock |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 2 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 1 MB | 12 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Yuji Tanaka](https://appshunter.io/developer/1450748397) | [Yuichiro Niwa](https://appshunter.io/developer/1694263025) |

## What reviewers say

### タイムフリップスタディ

[App page](https://appshunter.io/ios/app/id6475383272)

**In-app purchases:** none


### Voice Marker Clock

[App page](https://appshunter.io/ios/app/voice-marker-clock/id6502950713)

This analog clock app reads the time aloud at customizable intervals and allows users to set colored time markers with countdowns and notifications. It can also function as a simple, silent clock when needed.

**Highlights:** Voice time announcements, Customizable announcement intervals, Colored time markers, Countdown to marked time, Sound notifications for marked time, Simple clock mode

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Treat me to a donut | $1.99 | one-time |
| Marker - Feature Addition | $3.99 | one-time |
| Treat me to a hamburger | $4.99 | one-time |
| Treat me to a sushi. | $8.99 | one-time |


## Frequently asked questions

### Is タイムフリップスタディ free?

タイムフリップスタディ is free to download, with no in-app purchases.

### Is Voice Marker Clock free?

Voice Marker Clock is free to download, with in-app purchases available.

### Do タイムフリップスタディ or Voice Marker Clock have ads?

Neither タイムフリップスタディ nor Voice Marker Clock shows ads.

### Which is updated more often, タイムフリップスタディ or Voice Marker Clock?

タイムフリップスタディ ships an update daily, and Voice Marker Clock every 2 weeks. Most recently, タイムフリップスタディ was updated on October 5, 2026 and Voice Marker Clock on October 7, 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.*