# OnSecure eBook Reader vs DestCert Exam Prep

The clearest difference is rating: DestCert Exam Prep at 4.8 against OnSecure eBook Reader's 1.0. DestCert Exam Prep also leads on ratings volume (387 vs 1) and update cadence (every 4 weeks vs every 2 months). OnSecure eBook Reader's advantage is device support (3 vs 1) and iOS requirement (11.0 vs 16.0). 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.

DestCert Exam Prep holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: DestCert Exam Prep has 387 ratings behind it against 1, so its average is the more settled of the two.

OnSecure eBook Reader ships an update every 2 months, DestCert Exam Prep every 4 weeks. Both last shipped on October 8, 2026.

## The numbers

| Metric | OnSecure eBook Reader | DestCert Exam Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/onsecure-ebook-reader/id6453166683/reviews) | **[4.8 (387 ratings)](https://appshunter.io/ios/app/destcert-exam-prep/id6469578076/reviews)** |
| Number of ratings | 1 | **387** |
| Positive reviews | — | 83.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 weeks** |
| Monetization | Free | Free |
| Size | 108 MB | 62 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [OnFulfillment Inc.](https://appshunter.io/developer/1699207607) | [Destination Certification](https://appshunter.io/developer/1410751141) |

## What reviewers say

### OnSecure eBook Reader

[App page](https://appshunter.io/ios/app/onsecure-ebook-reader/id6453166683)

This application offers an interactive eBook reading experience with a fresh design. It integrates books with videos, audio, images, and interactive elements to enhance learning and engagement.

**Highlights:** Interactive eBook reader, Integrated videos and audio, Image banks, Synched audio, Book download capabilities, Engaging learning experience

**Features:** macOS Compatibility

**In-app purchases:** none


### DestCert Exam Prep

[App page](https://appshunter.io/ios/app/destcert-exam-prep/id6469578076)

Prepare for top cybersecurity certifications like CISSP, CCSP, CISM, and Security+ with expert-written practice questions and flashcards. Study smarter with tailored sessions, detailed explanations, and offline access to stay current with exam objectives.

**Highlights:** 100% Free Practice Questions & Flashcards, Expert-Curated Content, Tailored Learning Experience, Comprehensive Explanations, Up-to-Date Content, Offline Access

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

**In-app purchases:** none

**What reviewers like**

- 📚 Comprehensive study material and content coverage
- ✅ Effective exam preparation tool with high pass rates
- 💰 Free or affordable pricing model
- 🎨 Beautiful and intuitive user interface
- 🧠 Mind maps and visual learning aids

**What reviewers complain about**

- 🐛 Frequent app crashes and data loss
- 🔌 Performance issues and timeouts
- 📱 iOS/iPad compatibility problems
- 🎯 Questions misaligned with textbook domains
- ⚠️ Content includes topics not in official materials

**Reported bugs**

- App crashes when completing questions or loading data
- Progress not recorded or saved properly
- iOS keyboard popup blocks login and signup buttons
- OTP verification code disappears after clicking
- Signup form not scrollable, blocking password re-entry field

**Requested features**

- Desktop/web browser version for easier use
- Ability to filter flashcards by specific topics within domains
- Limit questions to studied content only
- Display all web portal videos and mind maps in app
- Option to select specific certification (CISSP, CCSP, CISM) more easily


## Frequently asked questions

### Is OnSecure eBook Reader free?

OnSecure eBook Reader is free to download, with no in-app purchases.

### Is DestCert Exam Prep free?

DestCert Exam Prep is free to download, with no in-app purchases.

### Which has better reviews, OnSecure eBook Reader or DestCert Exam Prep?

DestCert Exam Prep is rated higher. OnSecure eBook Reader averages 1.0 out of 5 from 1 ratings, while DestCert Exam Prep averages 4.8 from 387 ratings.

### Do OnSecure eBook Reader or DestCert Exam Prep have ads?

Neither OnSecure eBook Reader nor DestCert Exam Prep shows ads.

### Which is updated more often, OnSecure eBook Reader or DestCert Exam Prep?

OnSecure eBook Reader ships an update every 2 months, and DestCert Exam Prep every 4 weeks. Most recently, OnSecure eBook Reader was updated on October 8, 2026 and DestCert Exam Prep on October 8, 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.*