# hellow [LAB365] vs 21a OBMEP

The clearest difference is review sentiment: hellow [LAB365] at 71% against 21a OBMEP's 0%. hellow [LAB365] also leads on iOS requirement (12.0 vs 15.1). 21a OBMEP's advantage is update cadence (every 4 days vs every 8 days). On price, ads, in-app purchases and monetization model there is nothing between them.

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

hellow [LAB365] ships an update every 8 days, 21a OBMEP every 4 days. The most recent releases landed on September 23, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | hellow [LAB365] | 21a OBMEP |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **71.4% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 days | **Every 4 days** |
| Monetization | Free | Free |
| Size | 93 MB | 21 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [FIESC](https://appshunter.io/developer/1292353416) | [Instituto de Matematica Pura e Aplicada](https://appshunter.io/developer/1626544658) |

## What reviewers say

### hellow [LAB365]

[App page](https://appshunter.io/ios/app/hellow-lab365/id1539028251)

Learn programming in a fun and accessible way. This app guides you through small daily exercises, coding challenges, and real-world projects. Get immediate feedback and rewards as you build your skills and transform ideas into applications, games, or websites.

**Highlights:** Learn programming fundamentals, Daily exercises, Coding challenges, Real-world projects, Immediate feedback, Progress rewards

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

**In-app purchases:** none


### 21a OBMEP

[App page](https://appshunter.io/ios/app/21a-obmep/id6744337826)

This app allows school administrators to digitize and submit student answer sheets for a math competition. It also facilitates the completion of administrative forms related to the competition.

**Highlights:** Digitize answer sheets, Submit student responses, Fill out administrative forms, Digital submission of answer cards, Complete RAIG and Shipping Document

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

**In-app purchases:** none


## Frequently asked questions

### Is hellow [LAB365] free?

hellow [LAB365] is free to download, with no in-app purchases.

### Is 21a OBMEP free?

21a OBMEP is free to download, with no in-app purchases.

### Do hellow [LAB365] or 21a OBMEP have ads?

Neither hellow [LAB365] nor 21a OBMEP shows ads.

### Which is updated more often, hellow [LAB365] or 21a OBMEP?

hellow [LAB365] ships an update every 8 days, and 21a OBMEP every 4 days. Most recently, hellow [LAB365] was updated on September 23, 2026 and 21a OBMEP on October 10, 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.*