# Tefillin Timer vs BlackLock

The clearest difference is in-app purchases: Tefillin Timer at none against BlackLock's 2. On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. BlackLock sells 2 in-app purchases, starting at $4.99 per month. Tefillin Timer asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Tefillin Timer against 5.0 for BlackLock. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

Tefillin Timer ships an update fortnightly, BlackLock every 3 weeks. The most recent releases landed on June 4, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Tefillin Timer | BlackLock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/tefillin-timer/id6755014728/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/blacklock-blackout-study-ai/id6757925521/reviews) |
| Number of ratings | **3** | 2 |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 7 MB | 20 MB |
| Requires iOS | 26.0 | 26.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 12+ | 4+ |
| Developer | [SIna Matian](https://appshunter.io/developer/1794416661) | [GOAT STEW LLC](https://appshunter.io/developer/1854036252) |

## What reviewers say

### Tefillin Timer

[App page](https://appshunter.io/ios/app/tefillin-timer/id6755014728)

This app helps you establish and maintain a daily tefillin practice. It offers smart reminders, a comprehensive learning guide with audio, and detailed progress tracking. Enjoy a beautiful, user-friendly interface designed for a meaningful spiritual experience.

**Highlights:** Daily tefillin practice tracking, Smart zmanim integration, Intelligent reminder system, Comprehensive learning guide, Progress and statistics tracking, Home screen widgets

**Features:** macOS Compatibility

**In-app purchases:** none


### BlackLock

[App page](https://appshunter.io/ios/app/blacklock-blackout-study-ai/id6757925521)

This app is a comprehensive study tool that helps you capture notes, link concepts, and visualize relationships. It transforms your material into flashcards and quizzes, offering active recall practice and the ability to import and annotate documents.

**Highlights:** Rich text note-taking, Concept linking with backlinks and tags, Interactive mind map visualization, AI-powered flashcard generation, Active recall blackout study mode, PDF, image, and slide import, Annotation with Apple Pencil

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Yearly | $39.99 | per year |


## Frequently asked questions

### Is Tefillin Timer free?

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

### Is BlackLock free?

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

### Which has better reviews, Tefillin Timer or BlackLock?

Tefillin Timer and BlackLock are both rated 5.0 out of 5 on the App Store, from 3 and 2 ratings respectively.

### Do Tefillin Timer or BlackLock have ads?

Neither Tefillin Timer nor BlackLock shows ads.

### Which is updated more often, Tefillin Timer or BlackLock?

Tefillin Timer ships an update fortnightly, and BlackLock every 3 weeks. Most recently, Tefillin Timer was updated on June 4, 2026 and BlackLock on September 18, 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.*