# LET Reviewer vs Kolify

The clearest difference is in-app purchases: LET Reviewer at none against Kolify's 2. Kolify's advantage is update cadence (every 11 days vs every 6 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Kolify sells 2 in-app purchases, starting at $29.90 per month. LET Reviewer asks for nothing beyond the download.

LET Reviewer ships an update every 6 months, Kolify every 11 days. The most recent releases landed on October 20, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | LET Reviewer | Kolify |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 97.4% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 6 months | **Every 11 days** |
| Monetization | Free with in-app purchases | — |
| Size | 441 MB | 200 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rex Banggawan](https://appshunter.io/developer/1516403954) | [Shenzhen Shunkai Information Technology Co., Ltd](https://appshunter.io/developer/1709079418) |

## What reviewers say

### LET Reviewer

[App page](https://appshunter.io/ios/app/let-reviewer/id1574631917)

Prepare for the Licensure Examination for Professional Teachers with this comprehensive reviewer app. It offers lecture notes, video lectures, and practice problems to enhance your knowledge and skills. Interactive exercises help you track progress and build speed and accuracy for the exam.

**Highlights:** Lecture notes, Video lectures, Sample problems, Interactive online exercises, Up-to-date content, Progress tracking

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Kolify

[App page](https://appshunter.io/ios/app/kolify/id6695738762)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP Monthly Subscription | $29.90 | per month |
| VIP consecutive annual package | $199.00 | per year |


## Frequently asked questions

### Is LET Reviewer free?

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

### Is Kolify free?

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

### Do LET Reviewer or Kolify have ads?

Both LET Reviewer and Kolify show ads.

### Which is updated more often, LET Reviewer or Kolify?

LET Reviewer ships an update every 6 months, and Kolify every 11 days. Most recently, LET Reviewer was updated on October 20, 2026 and Kolify on October 27, 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.*