# Study852 — 852hz Pure Tone Timer

> Focus timer with 852hz pure tone for enhanced study and productivity. (iPhone/iPad app by Daisydoor LLC.)

- Source: https://appshunter.io/ios/app/study852/id6736966480 (this page in markdown: same URL + `.md`)
- Developer: [Daisydoor LLC](https://appshunter.io/developer/1755831368)
- Category: Productivity, Education
- Price: Free with in-app purchases
- Rating: 5.00/5 from 2 App Store ratings
- Age rating: 4+
- Requires: iOS 18.0 · 139 MB
- Languages: American English
- Released: 2024-10-17
- Data updated: 2026-06-01
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/study852/id6736966480/reviews.md

## What is Study852?

852hz pure tone plays when you start the timer and stops when the timer ends or you press pause. Perfect for studying and focus.


[In App Purchase]
PRO:
For a one time payment of $2.99, you can set timers longer than 10 minutes up to 3 hours. The purchase is good for lifetime use!

[Privacy and Security]
This app collects no data.

[Terms of Use]
EULA Link: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- 852hz pure tone playback
- Timer for focus sessions
- Pause and stop functionality
- Extended timer options (PRO)
- No data collection

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Pro | $0.99 | one-time |



## Frequently asked questions about Study852

### What is the main purpose of Study852?

Study852 is designed to help users focus by playing an 852hz pure tone when the timer is active. This tone stops when the timer ends or is paused, aiding concentration during study or work.

### How long can I set timers with Study852?

The free version of Study852 allows timers up to 10 minutes. For timers longer than 10 minutes, up to 3 hours, a one-time in-app purchase of $2.99 is available for lifetime use.

### Does Study852 collect any user data?

No, Study852 prioritizes user privacy and security by collecting no data. This ensures your usage remains private.

### What devices is Study852 available on?

Study852 is currently supported on iPhone devices, offering a focused productivity tool for Apple mobile users.

### What is the age rating for Study852?

Study852 has an age rating of 4+, making it suitable for a wide range of users looking for a simple focus aid.

### How often is Study852 updated?

Study852 was last updated on October 17, 2024, with version 1.0. Future updates will likely focus on stability and potential feature enhancements.

### What do users think of Study852?

Based on the available data, Study852 has a perfect 5.0-star rating from 2 reviews, indicating a very positive user sentiment.

### Does Study852 have ads?

No, Study852 does not contain advertisements. The app is free to download and use, with optional in-app purchases for extended features.

## Version history (last 1 release)

### 1.0 — 2024-10-17

No release notes.

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## More apps by Daisydoor LLC

- [G.T.F.O.](https://appshunter.io/ios/app/gtfo/id6602902775)
- [MyChill](https://appshunter.io/ios/app/mychill/id6737292007)
- [Lurking](https://appshunter.io/ios/app/lurking/id6742218032)
- [Dream Baby: Baby Sleep Coach](https://appshunter.io/ios/app/dream-baby-baby-sleep-coach/id6744563470)
- [Sleep Train: Sleep Training](https://appshunter.io/ios/app/sleep-train-sleep-training/id6747895203)

All apps by Daisydoor LLC: https://appshunter.io/developer/1755831368

## Related topics

[852 hz](https://appshunter.io/ios/topics/852-hz) · [daisydoor](https://appshunter.io/ios/topics/daisydoor)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*