# Portal vs Stretch Robot

The clearest difference is rating: Stretch Robot at 4.7 against Portal's 3.9. Portal's advantage is ads (none vs shown) and update cadence (monthly vs every 4 months). On price, review sentiment, ratings volume and in-app purchases there is nothing between them.

Both are free to download. Portal sells 4 one-off in-app purchases and Stretch Robot sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Stretch Robot holds the better App Store score, 4.7 against 3.9. Both are backed by a comparable volume of ratings — 50 and 125 respectively. Written reviews point the same way: 55% of Portal's written reviews are positive against 57% of Stretch Robot's.

Portal ships an update monthly, Stretch Robot every 4 months. The most recent releases landed on November 6, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Portal | Stretch Robot |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (50 ratings)](https://appshunter.io/ios/app/portal-a-ball/id879630976/reviews) | **[4.7 (125 ratings)](https://appshunter.io/ios/app/stretch-robot-physics-puzzle/id6473294292/reviews)** |
| Number of ratings | 50 | **125** |
| Positive reviews | 54.7% of reviews | **57.1% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 4 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 24 MB | 185 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [Charles Younger](https://appshunter.io/developer/805767204) | [TOO LUNAPP](https://appshunter.io/developer/1669287025) |

## What reviewers say

### Portal

[App page](https://appshunter.io/ios/app/portal-a-ball/id879630976)

Engage in a physics-based puzzle adventure across numerous test chambers. Each level presents unique objectives to challenge your problem-solving skills in this addictive game.

**Highlights:** Physics-based gameplay, Multiple test chambers, Varied level objectives, Addictive puzzle solving

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip the Developer - Small Tip | $0.99 | one-time |
| Tip the Developer - Nice Tip! | $1.99 | one-time |
| Tip the Developer - Generous Tip! | $4.99 | one-time |
| Tip the Developer - Amazing Tip! | $9.99 | one-time |

**What reviewers like**

- 👍 Great for Portal fans
- 💡 Fun puzzle action
- 🚀 Good for iPhone
- ✨ Simple but good
- 🎮 Challenging physics

**What reviewers complain about**

- 😕 Not fun at all
- 🐛 Glitches on some levels
- 🤔 Choppy graphics
- 📉 Too hard too quickly
- 😵 Repetitive gameplay

**Reported bugs**

- Platform moves with button click
- Seesaw puzzle impossible
- Companion cube moves with platform
- Blue portal not movable
- Game won't open level one

**Requested features**

- Add Portal music
- Animate thrown objects
- Thin the turret
- Update the game
- Allow turning iPhone to control ball


### Stretch Robot

[App page](https://appshunter.io/ios/app/stretch-robot-physics-puzzle/id6473294292)

Control a robot with extendable arms to solve physics-based puzzles. Stretch, grab, and swing to overcome obstacles like spikes and gaps using smart thinking and elastic mechanics. Enjoy handcrafted levels with a casual pace, perfect for quick, engaging brain teasers.

**Highlights:** Physics-based puzzle gameplay, Stretch mechanics, Handcrafted levels, Logic challenges, Casual pace, Intuitive physics

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is Portal free?

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

### Is Stretch Robot free?

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

### Which has better reviews, Portal or Stretch Robot?

Stretch Robot is rated higher. Portal averages 3.9 out of 5 from 50 ratings, while Stretch Robot averages 4.7 from 125 ratings.

### Do Portal or Stretch Robot have ads?

Stretch Robot shows ads; Portal does not.

### Which is updated more often, Portal or Stretch Robot?

Portal ships an update monthly, and Stretch Robot every 4 months. Most recently, Portal was updated on November 6, 2026 and Stretch Robot on November 8, 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.*