# Flip Clock vs Molecular Model Simulator

The clearest difference is review sentiment: Flip Clock at 72% against Molecular Model Simulator's 0%. Molecular Model Simulator's advantage is update cadence (every 10 days vs monthly) and iOS requirement (11.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Flip Clock sells 10 one-off in-app purchases and Molecular Model Simulator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Flip Clock ships an update monthly, Molecular Model Simulator every 10 days. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Flip Clock | Molecular Model Simulator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (71K ratings)](https://appshunter.io/ios/app/flip-clockdigital-desk-widget/id1181028777/reviews)** | — |
| Number of ratings | **71K** | — |
| Positive reviews | **72.4% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Every 10 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 80 MB | 84 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [翠玲 施](https://appshunter.io/developer/1181028776) | [博 彭](https://appshunter.io/developer/1293268076) |

## What reviewers say

### Flip Clock

[App page](https://appshunter.io/ios/app/flip-clockdigital-desk-widget/id1181028777)

This app provides a classic digital clock widget for your device's home, lock, and standby screens. It offers features like displaying seconds, a calendar, customizable themes, and various timekeeping tools including alarms, timers, and stopwatches. It can also function as a screensaver when charging.

**Highlights:** Display seconds on multiple screens, Full screen time and date, Smart alarm clock, Timer and stopwatch, Countdown to target dates, Pomodoro Technique timer, Customizable widget signatures

**Features:** Family Sharing, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Digital Clock 2 | $0.99 | one-time |
| Digital Clock 3 | $0.99 | one-time |
| Digital Clock 4 | $0.99 | one-time |
| Digital Clock 5 | $0.99 | one-time |
| Digital Clock 6 | $0.99 | one-time |
| Simulated Desk Fan 1 | $0.99 | one-time |
| Remove Ads | $0.99 | one-time |
| More clock skins | $0.99 | one-time |
| Flip Clock Professional Edition | $2.99 | one-time |
| Unlock All Screensavers | $9.99 | one-time |

**What reviewers like**

- 👍 Simple and effective
- 🎨 Aesthetic design
- ⏱️ Useful timer and alarm features
- 🔍 Highly visible and readable clock
- 🤩 Great for productivity and focus

**What reviewers complain about**

- 🔍 Limited customization options
- 🔋 Battery drain issues
- 📢 Excessive ads
- 🔒 Unreliable unlock/restore purchases
- 🐛 Bugs and glitches

**Reported bugs**

- Clock freezing or not updating correctly
- Alarm issues (not triggering, unable to disable)
- Inconsistent behavior across devices and OS versions
- Unlock/restore purchase bugs

**Requested features**

- More clock face and color options
- Automatic dark/light mode switching
- Ability to set clock as device wallpaper
- Improved alarm functionality and customization
- Seamless integration with other devices


### Molecular Model Simulator

[App page](https://appshunter.io/ios/app/molecular-model-simulator/id6459994670)

Visualize and interact with complex 3D molecular structures. Explore atomic arrangements, chemical bonds, and create custom compounds. Ideal for students, educators, and chemistry enthusiasts.

**Highlights:** Dynamic 3D molecular modeling, Interactive exploration (zoom, rotate, pan), Realistic atomic bonding visualization, Custom compound creation, Intuitive user interface, Educational and engaging content

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| UpgradeToPro | $0.99 | one-time |


## Frequently asked questions

### Is Flip Clock free?

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

### Is Molecular Model Simulator free?

Molecular Model Simulator is free to download, with in-app purchases available.

### Do Flip Clock or Molecular Model Simulator have ads?

Both Flip Clock and Molecular Model Simulator show ads.

### Which is updated more often, Flip Clock or Molecular Model Simulator?

Flip Clock ships an update monthly, and Molecular Model Simulator every 10 days. Most recently, Flip Clock was updated on November 7, 2026 and Molecular Model Simulator 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.*