# Flex Run 3D vs Coffee Stack

The clearest difference is update cadence: Coffee Stack at weekly against Flex Run 3D's monthly. Coffee Stack also leads on review sentiment (70% vs 59%) and ratings volume (548K vs 181K). Flex Run 3D's advantage is iOS requirement (13.0 vs 15.0). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Flex Run 3D sells 1 one-off in-app purchase and Coffee Stack sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.6 for Flex Run 3D against 4.7 for Coffee Stack. Both are backed by a comparable volume of ratings — 181K and 548K respectively. Written reviews are what separate them: 59% of Flex Run 3D's written reviews are positive against 70% of Coffee Stack's.

Flex Run 3D ships an update monthly, Coffee Stack weekly. Both last shipped on October 29, 2026.

## The numbers

| Metric | Flex Run 3D | Coffee Stack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (181K ratings)](https://appshunter.io/ios/app/flex-run-3d/id1580908333/reviews) | **[4.7 (548K ratings)](https://appshunter.io/ios/app/coffee-stack/id1591921962/reviews)** |
| Number of ratings | 181K | **548K** |
| Positive reviews | 58.7% of reviews | **70.2% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 174 MB | 594 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Voodoo](https://appshunter.io/developer/714804730) | [Rollic Games](https://appshunter.io/developer/1452111779) |

## What reviewers say

### Flex Run 3D

[App page](https://appshunter.io/ios/app/flex-run-3d/id1580908333)

Guide your character through challenging obstacle courses by sliding your finger to change their pose. Test your reflexes and spatial awareness to fit through narrow gaps and avoid collisions. Enjoy a fun and engaging experience with increasingly difficult levels.

**Highlights:** Slide to move character, Pose to fit obstacles, Challenging levels, Reflex and spatial testing, 3D obstacle courses

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No ads | $2.99 | one-time |

**What reviewers like**

- 🚀 Fun and entertaining
- 👍 Satisfying gameplay
- 💡 Unique movement mechanics

**What reviewers complain about**

- 🔥 Too many ads
- 🤔 Unclear use of gems
- 🐛 Glitches and bugs

**Reported bugs**

- Levels becoming impossible to complete
- Game freezing and crashing
- Inconsistent controls

**Requested features**

- More character customization options
- Ability to choose level difficulty
- Offline mode


### Coffee Stack

[App page](https://appshunter.io/ios/app/coffee-stack/id1591921962)

Engage in a satisfying cup stacking experience with a coffee shop theme. Stack cups, customize drinks with flavors, sleeves, and lids, and serve happy customers. Design and upgrade your dream coffee shop to build your own coffee empire.

**Highlights:** Cup stacking mechanics, Drink customization, Customer service simulation, Coffee shop design and upgrades, Unlock new recipes, Easy controls for all ages

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Double Hand | $6.99 | one-time |
| No Ads | $7.99 | one-time |
| Movement Speed | $9.99 | one-time |

**What reviewers like**

- 🚀 Fun and addictive gameplay
- 👍 Satisfying coffee-making experience
- 👍 Ability to customize coffee cups and shop
- 👍 Relaxing and calming game
- 👍 No WiFi required

**What reviewers complain about**

- 💢 Too many ads, interrupting gameplay
- 🐛 Glitches and crashes
- 🔋 Battery-draining
- 💰 Expensive in-app purchases
- 🤔 Repetitive levels and content

**Reported bugs**

- Progress reset after updates
- Freezing and crashing issues
- Inability to access certain features
- Ads not working as intended

**Requested features**

- Add more customization options for coffee shop
- Introduce more varied levels and challenges
- Reduce frequency of ads or offer ad-free option
- Fix progress loss and glitches
- Improve battery optimization


## Frequently asked questions

### Is Flex Run 3D free?

Flex Run 3D is free to download, with in-app purchases available.

### Is Coffee Stack free?

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

### Which has better reviews, Flex Run 3D or Coffee Stack?

Coffee Stack is rated higher. Flex Run 3D averages 4.6 out of 5 from 181K ratings, while Coffee Stack averages 4.7 from 548K ratings.

### Do Flex Run 3D or Coffee Stack have ads?

Both Flex Run 3D and Coffee Stack show ads.

### Which is updated more often, Flex Run 3D or Coffee Stack?

Flex Run 3D ships an update monthly, and Coffee Stack weekly. Most recently, Flex Run 3D was updated on October 29, 2026 and Coffee Stack on October 29, 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.*