# Tripos vs ARK

The clearest difference is rating: ARK at 4.6 against Tripos's 1.0. ARK also leads on in-app purchases (none vs 5) and update cadence (fortnightly vs every 2 months). Tripos's advantage is iOS requirement (11.0 vs 16.0). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. Tripos sells 5 one-off in-app purchases. ARK asks for nothing beyond the download.

ARK holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: ARK has 11 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 79% of Tripos's written reviews are positive against 83% of ARK's.

Tripos ships an update every 2 months, ARK fortnightly. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Tripos | ARK |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/tripos/id1465428236/reviews) | **[4.6 (11 ratings)](https://appshunter.io/ios/app/ark-community-hub-for-stem/id6737204004/reviews)** |
| Number of ratings | 1 | **11** |
| Positive reviews | 78.6% of reviews | **83.3% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 123 MB | 75 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [SANGANAN IT SOLUTIONS PRIVATE LIMITED](https://appshunter.io/developer/990191631) | [IMMACULATA TECHNOLOGIES LLC](https://appshunter.io/developer/1775240149) |

## What reviewers say

### Tripos

[App page](https://appshunter.io/ios/app/tripos/id1465428236)

This is a collaborative question-and-answer platform where users can ask, answer, and be rewarded for their knowledge. It aims to create a global classroom accessible from anywhere, building a knowledge database for all seekers.

**Highlights:** Ask and answer questions, Reward system for answers, Collaborative learning environment, Global knowledge database, Visual answer submission, Multi-language support, Personalized notifications

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 40 Coins | $0.99 | one-time |
| 80 Coins | $1.99 | one-time |
| 160 Coins | $2.99 | one-time |
| 240 Coins | $3.99 | one-time |
| 320 Coins | $4.99 | one-time |


### ARK

[App page](https://appshunter.io/ios/app/ark-community-hub-for-stem/id6737204004)

This platform connects STEM enthusiasts, innovators, and educators globally. Share ideas, showcase projects, and collaborate with experts. Buy and sell creations in an integrated marketplace to foster innovation and learning.

**Highlights:** Connect with STEM enthusiasts, Collaborate on projects, Showcase innovations, Buy and sell creations, Access learning resources, Join discussions on tech topics

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

**In-app purchases:** none


## Frequently asked questions

### Is Tripos free?

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

### Is ARK free?

ARK is free to download, with no in-app purchases.

### Which has better reviews, Tripos or ARK?

ARK is rated higher. Tripos averages 1.0 out of 5 from 1 ratings, while ARK averages 4.6 from 11 ratings.

### Do Tripos or ARK have ads?

Neither Tripos nor ARK shows ads.

### Which is updated more often, Tripos or ARK?

Tripos ships an update every 2 months, and ARK fortnightly. Most recently, Tripos was updated on November 3, 2026 and ARK on November 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*