CLASS101 vs HTAM Math Challenges
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CLASS101
Explore thousands of online courses in arts, crafts, fitness, cooking, technology, and more. Access a vast library of content to learn new skills or develop existing hobbies. Subscription options provide unlimited access to a wide range of educational materials.
- 4,000+ online classes
- Arts, crafts, fitness, cooking, languages
- Technology and career development
- Child education and wealth management
- Unlimited access with subscription
- Profile photo and video uploads
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South Korea's #1 online class platform. 4,000+ classes. Arts, crafts, fitness, cooking, languages, technology, career hacks, child education, wealth management & more. [CLASS101+ Subscription] CLASS101+ is a monthly and yearly subscription service that allows you unlimited access to over 6,000 classes. Subscribe to CLASS101+ and discover the perfect classes for you across various categories. This subscription will automatically renew unless you cancel at least 24 hours before the next billing date. You can manage your auto-renewal settings in your Apple account settings. Once the purchase is complete, the payment will be charged to your Apple account. [Optional Access Permissions] When using certain features, you will be asked for access permissions. These permissions are optional, and you can still use the app even if you choose not to grant them. Camera: For setting profile photos and attaching photos when creating posts Microphone: For attaching videos when creating posts Terms of Use and Privacy Policy: https://class101.net/en/docs/terms For inquiries or suggestions regarding the app: https://101.gg/chat
HTAM Math Challenges
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Math challenges app to test your geometrical knowledge with different areas and with different difficulties.
Screenshots
Verdict
The clearest difference is in-app purchases: HTAM Math Challenges at none against CLASS101's 10. HTAM Math Challenges also leads on update cadence (every 4 days vs monthly). CLASS101's advantage is iOS requirement (15.1 vs 26.2). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. CLASS101 sells 6 in-app purchases, starting at $19.99 per month. HTAM Math Challenges asks for nothing beyond the download.
CLASS101 ships an update monthly, HTAM Math Challenges every 4 days. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.
| Parameter | CLASS101 | HTAM Math Challenges |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (548 ratings) — better | — |
| Positive reviews | 38.5% of reviews | — |
| Number of ratings | 548 — better | — |
| Update frequency | Monthly | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 26.2 |
| Further details — not scored | ||
| Size | 120 MB | 10 MB |
| Age rating | 12+ | 4+ |
| Developer | CLASS101 Inc. | Ricardo Joao Lopes Pedrosa |
Bugs and requests
CLASS101
Reported bugs
3 issues- Videos not playing properly
- Login issues, unable to access account
- Inconsistent language settings
Requested features
4 requests- Add English language support
- Improve app stability and performance
- Offer monthly subscription options
- Enhance class search and navigation
HTAM Math Challenges
Not enough reviews yet to summarise bugs or requests.
In-app purchases
CLASS101
- CLASS101+ Monthly Subscription2 variants$19.991 Month
- CLASS101+ Yearly Subscription2 variants$129.991 Year
- CLASS101+ Yearly Subscription$149.991 Year
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- CLASS101+ Yearly Subscription$169.991 Year
- CLASS101+ Yearly Subscription$179.991 Year
- CLASS101+ Yearly Subscription3 variants$199.991 Year
HTAM Math Challenges
No in-app purchases
