# OSMS Mobile App vs CertFlash

The clearest difference is in-app purchases: OSMS Mobile App at none against CertFlash's 1. OSMS Mobile App also leads on iOS requirement (10.0 vs 17.0). CertFlash's advantage is update cadence (every 6 days vs every 12 months). On price, ads and device support there is nothing between them.

Both are free to download. CertFlash sells 1 one-off in-app purchase. OSMS Mobile App asks for nothing beyond the download.

OSMS Mobile App ships an update every 12 months, CertFlash every 6 days. The most recent releases landed on October 6, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | OSMS Mobile App | CertFlash |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/certflash-comptia-study-cards/id6761732835/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 6 days** |
| Monetization | — | Free with in-app purchases |
| Size | 83 MB | 5 MB |
| Requires iOS | **10.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [WELA.ONLINE CORP.](https://appshunter.io/developer/1621972441) | [Fogarty Holdings LLC](https://appshunter.io/developer/1891153306) |

## What reviewers say

### OSMS Mobile App

[App page](https://appshunter.io/ios/app/osms-mobile-app/id6443715429)

**Features:** macOS Compatibility

**In-app purchases:** none


### CertFlash

[App page](https://appshunter.io/ios/app/certflash-comptia-study-cards/id6761732835)

Prepare for CompTIA certification exams with focused flashcard study sessions. Utilizes spaced repetition to optimize learning and track progress. Study offline anywhere, anytime.

**Highlights:** Spaced repetition learning system, 1,050+ flashcards for multiple CompTIA exams, Offline study capability, Searchable flashcard database, Progress tracking and study streaks, Quick Quiz mode

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CertFlash Pro | $5.99 | one-time |


## Frequently asked questions

### Is OSMS Mobile App free?

OSMS Mobile App is free to download, with no in-app purchases.

### Is CertFlash free?

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

### Do OSMS Mobile App or CertFlash have ads?

Neither OSMS Mobile App nor CertFlash shows ads.

### Which is updated more often, OSMS Mobile App or CertFlash?

OSMS Mobile App ships an update every 12 months, and CertFlash every 6 days. Most recently, OSMS Mobile App was updated on October 6, 2026 and CertFlash on October 2, 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.*