# Universe Splitter vs Countdown Star (Ad

The clearest difference is update cadence: Countdown Star (Ad at every 2 weeks against Universe Splitter's every 17 months. Universe Splitter's advantage is review sentiment (76% vs 56%) and chart position (#13 vs unranked). On price, rating, ratings volume and ads there is nothing between them.

Universe Splitter costs $1.99 and Countdown Star (Ad $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.7 for Universe Splitter against 4.7 for Countdown Star (Ad. Both are backed by a comparable volume of ratings — 1.5K and 3.7K respectively. Written reviews are what separate them: 76% of Universe Splitter's written reviews are positive against 56% of Countdown Star (Ad's.

Universe Splitter ships an update every 17 months, Countdown Star (Ad every 2 weeks. The most recent releases landed on October 31, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Universe Splitter | Countdown Star (Ad |
| --- | --- | --- |
| Price | $1.99 | $1.99 |
| Rating | [4.7 (1.5K ratings)](https://appshunter.io/ios/app/universe-splitter/id329233299/reviews) | **[4.7 (3.7K ratings)](https://appshunter.io/ios/app/countdown-star-ad-free/id569371565/reviews)** |
| Number of ratings | 1.5K | **3.7K** |
| Positive reviews | **75.6% of reviews** | 55.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 2 weeks** |
| Monetization | Paid | Paid |
| Best chart rank | **#13** | — |
| Size | 104 MB | 53 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Aerfish LLC](https://appshunter.io/developer/329233302) | [Joseph Merrill](https://appshunter.io/developer/1099488988) |

## What reviewers say

### Universe Splitter

[App page](https://appshunter.io/ios/app/universe-splitter/id329233299)

**Currently charting:** #13 Top Paid · Entertainment (US App Store)

This app uses quantum physics to help you make decisions. Input two choices, and it uses a remote quantum device to determine which reality you end up in, allowing you to live out both outcomes in separate universes.

**Highlights:** Quantum decision-making, Splits universes based on choices, Uses remote quantum device, Based on many-worlds interpretation, Original and acclaimed app

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

**In-app purchases:** none

**What reviewers like**

- 👍 Great app for decision-making
- 🤖 Unique concept using quantum mechanics
- 🤩 Fun and engaging user experience
- 🧠 Helps with indecision and analysis paralysis

**What reviewers complain about**

- 🐛 Inconsistent or unreliable results
- 🔧 Technical issues with connectivity or functionality
- 💤 Boring or repetitive after repeated use
- 🤔 Doubts about the app's true quantum capabilities

**Reported bugs**

- App crashes or freezes during use
- Inconsistent behavior across devices or OS versions
- Issues with loading or connecting to the quantum device

**Requested features**

- Add ability to track and review past decisions
- Improve visual design and user interface
- Provide more information on the science behind the app
- Allow customization of options and decision-making process


### Countdown Star (Ad

[App page](https://appshunter.io/ios/app/countdown-star-ad-free/id569371565)

Track time until or since important events with customizable timers. Set up countdowns for birthdays, holidays, and vacations, or count up from anniversaries and special dates. Share your event timers with friends and family.

**Highlights:** Add custom events, Customize event visuals, Apple Watch display, Today Widget integration, Set exact event times, Adjust time units, Share event timers

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 💡 Customizable backgrounds
- 🚀 Simple and functional
- 🎨 Nice visual design

**What reviewers complain about**

- 🐛 Unreliable widget functionality
- 🔍 Limited event management options
- 💰 Paid version doesn't import free version data
- 🔧 Lack of customization options

**Reported bugs**

- Custom wallpapers not saving
- Countdown not updating correctly
- Compatibility issues with newer iOS versions
- Notification system not working as expected

**Requested features**

- Recurring event support
- Ability to exclude weekends/holidays from countdown
- Multiple event display on main screen
- Improved widget functionality
- Sync across devices


## Frequently asked questions

### Is Universe Splitter free?

Universe Splitter costs $1.99, with no in-app purchases.

### Is Countdown Star (Ad free?

Countdown Star (Ad costs $1.99, with no in-app purchases.

### Which has better reviews, Universe Splitter or Countdown Star (Ad?

Countdown Star (Ad is rated higher. Universe Splitter averages 4.7 out of 5 from 1.5K ratings, while Countdown Star (Ad averages 4.7 from 3.7K ratings.

### Do Universe Splitter or Countdown Star (Ad have ads?

Neither Universe Splitter nor Countdown Star (Ad shows ads.

### Which is updated more often, Universe Splitter or Countdown Star (Ad?

Universe Splitter ships an update every 17 months, and Countdown Star (Ad every 2 weeks. Most recently, Universe Splitter was updated on October 31, 2026 and Countdown Star (Ad on November 1, 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.*