# Onet Online vs Octothink

The clearest difference is rating: Onet Online at 4.3 against Octothink's 2.3. Onet Online also leads on in-app purchases (none vs 11) and ratings volume (171 vs 3). Octothink's advantage is update cadence (monthly vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Octothink sells 11 in-app purchases, starting at $5.99 per month. Onet Online asks for nothing beyond the download.

Onet Online holds the better App Store score, 4.3 against 2.3. That said, the two scores are not equally well evidenced: Onet Online has 171 ratings behind it against 3, so its average is the more settled of the two.

Onet Online ships an update every 3 months, Octothink monthly. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Onet Online | Octothink |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (171 ratings)](https://appshunter.io/ios/app/onet-online/id945671940/reviews)** | [2.3 (3 ratings)](https://appshunter.io/ios/app/octothink/id1494144794/reviews) |
| Number of ratings | **171** | 3 |
| Positive reviews | 18.8% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 129 MB | 727 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Luu Trong](https://appshunter.io/developer/814550645) | [Absolutely Digital](https://appshunter.io/developer/1297918392) |

## What reviewers say

### Onet Online

[App page](https://appshunter.io/ios/app/onet-online/id945671940)

Connect matching pairs of images by drawing lines between them, with a limit of three lines. Enjoy a user-friendly interface, lovely images, and exciting sounds across 144 challenging levels. Utilize hint and swap functions to aid your progress.

**Highlights:** Pair matching gameplay, User-friendly interface, 144 challenging levels, Hint function, Swap function, Exciting sounds

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

**In-app purchases:** none


### Octothink

[App page](https://appshunter.io/ios/app/octothink/id1494144794)

This application offers a variety of puzzles and riddles designed to stimulate cognitive skills like memory, attention, and multitasking. It features multiple difficulty levels and a training dashboard to track progress. Compete with others on a global leaderboard.

**Highlights:** Cognitive skill stimulation, Enigmas, puzzles, and riddles, Memory, attention, multitasking training, Three difficulty levels, Progress tracking dashboard, International leaderboard

**Features:** macOS Compatibility

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Subscription | $5.99 | per month |
| Annual Subscription | $39.99 | per year |
| 10 Gems | $0.99 | one-time |
| Silver Pack | $4.99 | one-time |
| 60 Gems | $4.99 | one-time |
| 175 Gems | $14.99 | one-time |
| 250 Gems | $19.99 | one-time |
| Golden Pack | $39.99 | one-time |
| 600 Gems | $49.99 | one-time |
| Diamond Pack | $90.00 | one-time |
| 1500 Gems | $99.99 | one-time |


## Frequently asked questions

### Is Onet Online free?

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

### Is Octothink free?

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

### Which has better reviews, Onet Online or Octothink?

Onet Online is rated higher. Onet Online averages 4.3 out of 5 from 171 ratings, while Octothink averages 2.3 from 3 ratings.

### Do Onet Online or Octothink have ads?

Both Onet Online and Octothink show ads.

### Which is updated more often, Onet Online or Octothink?

Onet Online ships an update every 3 months, and Octothink monthly. Most recently, Onet Online was updated on October 29, 2026 and Octothink on October 25, 2026.

---

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