# Study Timer Display vs Rostrum

The clearest difference is price: Rostrum at Free against Study Timer Display's $1.99. Rostrum also leads on update cadence (daily vs every 4 days). Study Timer Display's advantage is iOS requirement (13.0 vs 18.0). On review sentiment, ads, in-app purchases and device support there is nothing between them.

Rostrum is free to download; Study Timer Display costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Study Timer Display ships an update every 4 days, Rostrum daily. The most recent releases landed on September 21, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Study Timer Display | Rostrum |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rostrum-speaker-timer/id6797343777/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 days | **Daily** |
| Monetization | Paid | **Free** |
| Size | 19 MB | 1 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [JAEMIN LEE](https://appshunter.io/developer/1787329213) | [Scott GREER](https://appshunter.io/developer/1889757381) |

## What reviewers say

### Study Timer Display

[App page](https://appshunter.io/ios/app/study-timer-display/id6755321443)

Transform your device into a minimalist, distraction-free desk clock. Ideal for students and productivity environments, it helps maintain focus during study sessions and homework.

**Highlights:** Minimalist desk clock design, Distraction-free environment, Ideal for study sessions, Suitable for homework time, Useful for library use, Enhances productivity

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

**In-app purchases:** none


### Rostrum

[App page](https://appshunter.io/ios/app/rostrum-speaker-timer/id6797343777)

This app provides a silent, visual countdown timer for speakers, with customizable color cues to indicate time remaining. It offers intuitive gesture controls for adjustments and can mirror the display to a larger screen.

**Highlights:** Silent visual countdown, Customizable color stages, Gesture-based editing, External display mirroring, Never dims screen, Remembers settings

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Study Timer Display free?

Study Timer Display costs $1.99, with no in-app purchases.

### Is Rostrum free?

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

### Do Study Timer Display or Rostrum have ads?

Neither Study Timer Display nor Rostrum shows ads.

### Which is updated more often, Study Timer Display or Rostrum?

Study Timer Display ships an update every 4 days, and Rostrum daily. Most recently, Study Timer Display was updated on September 21, 2026 and Rostrum on September 23, 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.*