# Calto vs Arctic Habit

The clearest difference is in-app purchases: Calto at none against Arctic Habit's 4. Calto also leads on ads (none vs shown) and iOS requirement (15.6 vs 17.0). Arctic Habit's advantage is update cadence (every 2 days vs every 9 days). On price and device support there is nothing between them.

Both are free to download. Arctic Habit sells 4 in-app purchases, starting at $1.99 per 7 days. Calto asks for nothing beyond the download.

Calto ships an update every 9 days, Arctic Habit every 2 days. The most recent releases landed on October 12, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Calto | Arctic Habit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/arctic-habit-focus-timer/id6816067233/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 days | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 30 MB | 84 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [JONGWOO PARK](https://appshunter.io/developer/1873952653) | [jeonghwan lee](https://appshunter.io/developer/6806806683) |

## What reviewers say

### Calto

[App page](https://appshunter.io/ios/app/calto-note-calculator/id6758614596)

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

**In-app purchases:** none


### Arctic Habit

[App page](https://appshunter.io/ios/app/arctic-habit-focus-timer/id6816067233)

Enhance focus and productivity with a unique timer that rewards your concentration by growing a virtual Arctic habitat. Rescue animals and decorate your island as you complete study, reading, or deep work sessions. Track your habits and gain insights into your focus patterns.

**Highlights:** Gamified focus timer with animal rewards, Customizable Arctic island habitat, Session tagging for study, reading, and more, Streak tracking and habit analytics, Deep Focus mode to block other apps, Focus sounds (rain, waves, lo-fi), To-do list integration with Pro

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Arctic Pro Weekly | $1.99 | per 7 days |
| Arctic Pro Monthly | $3.99 | per month |
| Arctic Pro Yearly | $19.99 | per year |
| Arctic Pro Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is Calto free?

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

### Is Arctic Habit free?

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

### Do Calto or Arctic Habit have ads?

Arctic Habit shows ads; Calto does not.

### Which is updated more often, Calto or Arctic Habit?

Calto ships an update every 9 days, and Arctic Habit every 2 days. Most recently, Calto was updated on October 12, 2026 and Arctic Habit 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.*