# Cala vs Twilock

The clearest difference is update cadence: Twilock at weekly against Cala's every 2 months. Twilock also leads on iOS requirement (16.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Cala sells 2 in-app purchases, starting at $7.99 per month and Twilock sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Cala ships an update every 2 months, Twilock weekly. The most recent releases landed on October 14, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Cala | Twilock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (26 ratings)](https://appshunter.io/ios/app/twilock-screen-time-control/id6786474238/reviews)** |
| Number of ratings | — | **26** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | — | Freemium |
| Size | 26 MB | 70 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Spark Digital Incorporated](https://appshunter.io/developer/1875625754) | [Prism Studios](https://appshunter.io/developer/6786474240) |

## What reviewers say

### Cala

[App page](https://appshunter.io/ios/app/cala-app-blocker-screen-time/id6761075944)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cala Pro — Monthly | $7.99 | per month |
| Cala Pro — Yearly | $59.99 | per year |


### Twilock

[App page](https://appshunter.io/ios/app/twilock-screen-time-control/id6786474238)

This app helps you reclaim your nights and mornings by blocking distracting apps during specific, customizable windows. Build streaks, earn badges, and track your reclaimed time privately. Connect with friends for accountability.

**Highlights:** Customizable app blocking windows, Streak building and rewards, Reclaimed time tracking, Friend accountability leaderboard, Private data handling, Optional Pro features

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Twilock Pro Monthly | $4.99 | per month |
| Twilock Pro Annual | $39.99 | per year |
| Twilock Lifetime | $79.99 | one-time |


## Frequently asked questions

### Is Cala free?

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

### Is Twilock free?

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

### Do Cala or Twilock have ads?

Neither Cala nor Twilock shows ads.

### Which is updated more often, Cala or Twilock?

Cala ships an update every 2 months, and Twilock weekly. Most recently, Cala was updated on October 14, 2026 and Twilock on October 23, 2026.

---

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