# FLIP vs 순공시간

The clearest difference is ads: 순공시간 at none against FLIP's shown. 순공시간 also leads on review sentiment (100% vs 88%). FLIP's advantage is update cadence (every 2 weeks vs every 2 months). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. FLIP sells 10 in-app purchases, starting at $2.00 per month and 순공시간 sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

FLIP ships an update every 2 weeks, 순공시간 every 2 months. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | FLIP | 순공시간 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (897 ratings)](https://appshunter.io/ios/app/flip-focus-timer-for-study/id1435127190/reviews)** | — |
| Number of ratings | **897** | — |
| Positive reviews | 87.8% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | Freemium |
| Size | 145 MB | 34 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rinasoft Inc.](https://appshunter.io/developer/386505937) | [yerin lee](https://appshunter.io/developer/1819443165) |

## What reviewers say

### FLIP

[App page](https://appshunter.io/ios/app/flip-focus-timer-for-study/id1435127190)

This app helps improve study habits by tracking focus time using a unique phone-flipping method. It offers features like global study groups, real-time progress monitoring, and detailed statistics to enhance concentration and productivity.

**Highlights:** Flip phone to measure study time, Global study groups and chat, Real-time study session monitoring, Detailed daily, weekly, monthly statistics, D-day countdown for goals, Timetable and study schedule planner

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium Membership | $2.00 | per month |
| 6 Months Premium Membership | $10.00 | per 6 months |
| Yearly Premium Membership | $18.00 | per year |
| Premium Service - 1Month | $1.99 | one-time |
| Charging 2500 points | $1.99 | one-time |
| Premium Service - 3Months | $4.99 | one-time |
| Charging 5900 points | $4.99 | one-time |
| Premium Service - 6 Months | $7.99 | one-time |
| Premium Service - 12 Months | $14.99 | one-time |
| Charging 20000 points | $15.99 | one-time |

**What reviewers like**

- 💕 Motivating and helpful for studying
- 👍 Cute and aesthetically pleasing design
- 🚀 Useful features like goals, timers, and tracking
- 🤝 Social aspect with study groups and leaderboards

**What reviewers complain about**

- 🐛 Occasional crashes and glitches
- 🔒 Concerns about premium features and in-app purchases
- 📱 Issues with syncing and editing data across devices

**Reported bugs**

- Ranking and leaderboard data not updating properly
- Study time not being saved or recorded accurately
- Language settings not working as expected

**Requested features**

- Add more customization options for themes and layouts
- Improve the user interface and navigation
- Implement an Apple Watch app for easier tracking
- Allow more flexibility in setting and editing study goals


### 순공시간

[App page](https://appshunter.io/ios/app/id6748931524)

This app helps you plan your study sessions and track focused learning time. It allows you to set daily subjects, create to-do lists, and use a timer that only records actual study time. Achieve your academic goals with a clean, minimalist interface designed for smooth study flow.

**Highlights:** Subject-specific study planning, Study task checklist, Automatic focus time recording, Daily cumulative study time tracking, D-Day setting for exams, Minimalist interface

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 순공시간 프리미엄 (월간 구독) | $1.99 | per month |
| PureFocus Premium (Yearly) | $14.99 | per year |


## Frequently asked questions

### Is FLIP free?

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

### Is 순공시간 free?

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

### Do FLIP or 순공시간 have ads?

FLIP shows ads; 순공시간 does not.

### Which is updated more often, FLIP or 순공시간?

FLIP ships an update every 2 weeks, and 순공시간 every 2 months. Most recently, FLIP was updated on November 6, 2026 and 순공시간 on November 5, 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.*