# Osmos vs Bridge Constructor Portal

The clearest difference is in-app purchases: Osmos at none against Bridge Constructor Portal's 1. Bridge Constructor Portal's advantage is update cadence (every 2 months vs every 7 months) and price ($1.99 vs $3.99). On rating, review sentiment, ads and monetization model there is nothing between them.

Osmos costs $3.99 and Bridge Constructor Portal $1.99 up front. Bridge Constructor Portal sells 1 one-off in-app purchase. Osmos asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for Osmos against 4.8 for Bridge Constructor Portal. Both are backed by a comparable volume of ratings — 892 and 4.1K respectively. Written reviews are what separate them: 92% of Osmos's written reviews are positive against 84% of Bridge Constructor Portal's.

Osmos ships an update every 7 months, Bridge Constructor Portal every 2 months. The most recent releases landed on October 17, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Osmos | Bridge Constructor Portal |
| --- | --- | --- |
| Price | $3.99 | **$1.99** |
| Rating | [4.8 (892 ratings)](https://appshunter.io/ios/app/osmos/id382991304/reviews) | [4.8 (4.1K ratings)](https://appshunter.io/ios/app/bridge-constructor-portal/id1311353234/reviews) |
| Number of ratings | 892 | **4.1K** |
| Positive reviews | **92.3% of reviews** | 84.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Best chart rank | #100 | **#61** |
| Size | 48 MB | 196 MB |
| Requires iOS | 13.4 | **13.0** |
| Devices | **iPhone, iPad, iPod, Apple TV** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hemisphere Games](https://appshunter.io/developer/379323385) | [Headup GmbH](https://appshunter.io/developer/503190235) |

## What reviewers say

### Osmos

[App page](https://appshunter.io/ios/app/osmos/id382991304)

**Currently charting:** #100 Top Paid · Puzzle, #163 Top Paid · Simulation (US App Store)

Navigate a cosmic world as a galactic mote. Absorb smaller organisms to grow while avoiding larger predators. This physics-based survival game features stunning graphics and an ambient soundtrack.

**Highlights:** Physics-based gameplay, Absorb smaller organisms to grow, Avoid larger predators, Stellar graphics, Ambient soundtrack, 72 levels across 8 worlds, Multiplayer mode

**Features:** Game Controller support, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🌟 Mesmerizing visuals and aesthetics
- 🎶 Excellent soundtrack and audio design
- 🧠 Challenging and thought-provoking gameplay
- 🕰️ Ability to control time/speed
- 🕊️ Relaxing and meditative experience

**What reviewers complain about**

- 🤯 Frustratingly difficult at times
- 🔋 Battery drain issues
- 🖥️ Not optimized for larger screens (iPad)
- 🔍 Lack of zoom/scale controls

**Reported bugs**

- Crashes on certain devices/OS versions
- Compatibility issues with newer hardware

**Requested features**

- More levels and content updates
- Multiplayer mode improvements
- Customization options (e.g. music, visuals)
- Difficulty settings or accessibility options


### Bridge Constructor Portal

[App page](https://appshunter.io/ios/app/bridge-constructor-portal/id1311353234)

**Currently charting:** #61 Top Paid · Puzzle, #105 Top Paid · Simulation (US App Store)

Construct bridges, ramps, and slides in a science lab environment. Utilize iconic gadgets like portals and gels to guide vehicles through challenging test chambers while avoiding hazards. Solve physics puzzles with guidance from a familiar AI.

**Highlights:** Bridge and ramp construction, Portal gadget integration, Physics-based puzzles, Hazard evasion, GLaDOS voice guidance, Test chamber challenges

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Portal Proficiency | $1.99 | one-time |

**What reviewers like**

- 🚀 Excellent physics engine
- 👍 Engaging Portal-themed puzzles
- 😄 Hilarious GlaDOS commentary
- 🤖 Seamless integration of Portal elements
- 💰 Good value for money

**What reviewers complain about**

- 🐛 Occasional save data loss issues
- 🤔 Difficulty ramps up too quickly
- 🕹️ Controls can be finicky on smaller screens
- 🎨 Lack of customization options

**Reported bugs**

- Ads appearing in paid version
- Inconsistent performance on older devices

**Requested features**

- Level editor and custom level sharing
- Leaderboards and challenge modes
- Ability to skip tutorial levels
- Cloud sync support for cross-device progress


## Frequently asked questions

### Is Osmos free?

Osmos costs $3.99, with no in-app purchases.

### Is Bridge Constructor Portal free?

Bridge Constructor Portal costs $1.99, and also offers in-app purchases.

### Which has better reviews, Osmos or Bridge Constructor Portal?

Osmos and Bridge Constructor Portal are both rated 4.8 out of 5 on the App Store, from 892 and 4.1K ratings respectively.

### Do Osmos or Bridge Constructor Portal have ads?

Neither Osmos nor Bridge Constructor Portal shows ads.

### Which is updated more often, Osmos or Bridge Constructor Portal?

Osmos ships an update every 7 months, and Bridge Constructor Portal every 2 months. Most recently, Osmos was updated on October 17, 2026 and Bridge Constructor Portal on October 18, 2026.

### Which is more popular, Osmos or Bridge Constructor Portal?

Osmos currently peaks at #100 in the App Store charts, and Bridge Constructor Portal at #61. Chart position reflects recent download velocity rather than total install base.

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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.*