# Learning Tree iCheckIn vs SentryCard Enroll

The clearest difference is update cadence: SentryCard Enroll at every 2 months against Learning Tree iCheckIn's every 22 months. Learning Tree iCheckIn's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 26.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Learning Tree iCheckIn against 5.0 for SentryCard Enroll. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Learning Tree iCheckIn ships an update every 22 months, SentryCard Enroll every 2 months. The most recent releases landed on October 4, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Learning Tree iCheckIn | SentryCard Enroll |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/learning-tree-icheckin/id896801467/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/sentrycard-enroll/id6736632425/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 22 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 39 MB | 6 MB |
| Requires iOS | **12.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Rejminet Group Inc.](https://appshunter.io/developer/1558313761) | [Sentry Enterprises](https://appshunter.io/developer/1604634176) |

## What reviewers say

### Learning Tree iCheckIn

[App page](https://appshunter.io/ios/app/learning-tree-icheckin/id896801467)

This application is designed exclusively for Learning Tree instructors to manage their activities. It provides a specialized tool for their professional needs.

**Highlights:** Instructor-specific functionality, Activity management, Professional tool

**Features:** macOS Compatibility

**In-app purchases:** none


### SentryCard Enroll

[App page](https://appshunter.io/ios/app/sentrycard-enroll/id6736632425)

This app guides users through the biometric enrollment process for their SentryCard. It allows for fingerprint enrollment, verification of enrolled fingers, and checking card version information.

**Highlights:** Guided fingerprint enrollment, Verify enrolled fingers, Check card version information, Secure new card setup

**In-app purchases:** none


## Frequently asked questions

### Is Learning Tree iCheckIn free?

Learning Tree iCheckIn is free to download, with no in-app purchases.

### Is SentryCard Enroll free?

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

### Which has better reviews, Learning Tree iCheckIn or SentryCard Enroll?

Learning Tree iCheckIn and SentryCard Enroll are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do Learning Tree iCheckIn or SentryCard Enroll have ads?

Neither Learning Tree iCheckIn nor SentryCard Enroll shows ads.

### Which is updated more often, Learning Tree iCheckIn or SentryCard Enroll?

Learning Tree iCheckIn ships an update every 22 months, and SentryCard Enroll every 2 months. Most recently, Learning Tree iCheckIn was updated on October 4, 2026 and SentryCard Enroll on September 17, 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.*