# 텔어스 vs Jamtudy

The clearest difference is ads: 텔어스 at none against Jamtudy's shown. 텔어스 also leads on iOS requirement (15.1 vs 17.0). Jamtudy's advantage is update cadence (every 2 days vs monthly). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

텔어스 ships an update monthly, Jamtudy every 2 days. The most recent releases landed on October 31, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | 텔어스 | Jamtudy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.3 (3 ratings)](https://appshunter.io/ios/app/jamtudy-focus-timer/id6792468060/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 94.9% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 2 days** |
| Monetization | — | Ad-supported |
| Size | 133 MB | 228 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tellus ios (Tellus Inc.)](https://appshunter.io/developer/1882035127) | [Low Pie](https://appshunter.io/developer/6792468062) |

## What reviewers say

### 텔어스

[App page](https://appshunter.io/ios/app/id6761407485)

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

**In-app purchases:** none


### Jamtudy

[App page](https://appshunter.io/ios/app/jamtudy-focus-timer/id6792468060)

This app allows users to study together with friends by joining as cute characters and watching each other's timers in real time. It helps track daily study time and encourages focused sessions.

**Highlights:** Join friends as cute characters, Watch timers in real time, Track daily study time, Collaborative study sessions, Focus timer

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

**In-app purchases:** none


## Frequently asked questions

### Is 텔어스 free?

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

### Is Jamtudy free?

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

### Do 텔어스 or Jamtudy have ads?

Jamtudy shows ads; 텔어스 does not.

### Which is updated more often, 텔어스 or Jamtudy?

텔어스 ships an update monthly, and Jamtudy every 2 days. Most recently, 텔어스 was updated on October 31, 2026 and Jamtudy on November 1, 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.*