# Under Lyset vs Atomic

The clearest difference is in-app purchases: Under Lyset at none against Atomic's 4. Under Lyset also leads on update cadence (daily vs every 5 days) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Atomic sells 3 in-app purchases, starting at $3.99 per month. Under Lyset asks for nothing beyond the download.

Under Lyset ships an update daily, Atomic every 5 days. The most recent releases landed on October 2, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Under Lyset | Atomic |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 5 days |
| Monetization | — | Free with in-app purchases |
| Size | 233 MB | 45 MB |
| Requires iOS | **11.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Uit Norges Arktiske Universitet B.i.l.](https://appshunter.io/developer/1033143769) | [Chung Ping Tseng](https://appshunter.io/developer/1801222767) |

## What reviewers say

### Under Lyset

[App page](https://appshunter.io/ios/app/under-lyset/id1540552932)

**In-app purchases:** none


### Atomic

[App page](https://appshunter.io/ios/app/atomic-learn-languages/id6743085759)

This app offers daily listening challenges to improve English comprehension. It's designed to build a language habit through short, engaging exercises, catering to various levels and accents. Track your progress and maintain a streak with quick, effective practice.

**Highlights:** Daily listening challenges, AI-powered learning, Typing practice, Instant feedback, Streak tracking, Multiple accents and levels

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Atomic Learning - Monthly Plan | $3.99 | per month |
| Atomic Learning - Yearly Plan | $29.99 | per year |
| AtomicLearning Pro Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is Under Lyset free?

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

### Is Atomic free?

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

### Do Under Lyset or Atomic have ads?

Neither Under Lyset nor Atomic shows ads.

### Which is updated more often, Under Lyset or Atomic?

Under Lyset ships an update daily, and Atomic every 5 days. Most recently, Under Lyset was updated on October 2, 2026 and Atomic on October 6, 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.*