Biosphere 2 K vs FlashQuest
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Biosphere 2 K
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The Biosphere 2 K-12 app provides an accessible guide for students and their teachers to explore this advanced scientific research facility the worlds largest closed system with everything needed to support human life long-term it is called Biosphere 2 - biosphere 1 is the Earth. By the end of your experience, you’ll be prepared to design and build your own biosphere using a computer model.
FlashQuest
This app helps you ace exams by turning study decks into engaging games. It uses spaced repetition for effective learning and allows AI-assisted card creation from notes or PDFs. A free version is available, with an optional Pro subscription for enhanced AI features.
- Gamified study decks
- Spaced repetition learning
- AI-powered card creation
- Community deck sharing
- Progress tracking with XP
- Offline study options
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Test coming up? We got you. FlashQuest helps you ace your exams and have fun doing it. Study free decks made for exam practice, play them like a game, and walk in remembering what you studied. Find your next deck Browse community decks on the Table, add one, and start studying. Made a great deck? Bring it to the Table and share it. It plays like a game Quest turns any deck into quick rounds you actually want to win. Study Match deals your cards one at a time. Streaks and XP keep you coming back. Learn it by heart FlashQuest uses FSRS, a spaced repetition method, to schedule reviews based on your answers. Practice what needs more attention and spend less time repeating what you already know. Your notes, your deck Type cards yourself, or snap a page, drop a PDF or paste your notes and let AI deal the deck. You review every card before you save. Your available AI-card allowance is shown in the app before you generate. FlashQuest Pro Studying and making cards by hand are free. Pro adds a larger AI allowance. Choose a monthly or annual plan in the app; available benefits and prices are shown before purchase. Deck. Set. Match. Pro is available as an auto-renewing monthly or annual subscription; prices are shown in the app before purchase. Payment is charged to your Apple Account. Subscriptions renew automatically unless cancelled at least 24 hours before the current period ends. Manage or cancel in your App Store account settings. Community decks are made by users; use in-app reporting and blocking when needed. You can start as a guest; accounts and connected features are for ages 13 and up. AI features ask before sending your study content to OpenAI or Anthropic for processing, depending on the feature. Optional analytics can be turned off in privacy settings. Privacy Policy: https://flashquest.net/privacy Terms of Use: https://flashquest.net/terms
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Verdict
The clearest difference is in-app purchases: Biosphere 2 K at none against FlashQuest's 5. Biosphere 2 K also leads on ads (none vs shown). FlashQuest's advantage is update cadence (every 10 days vs every 5 months). On price, device support and iOS requirement 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. FlashQuest sells 5 in-app purchases, starting at $6.99 per month. Biosphere 2 K asks for nothing beyond the download.
Biosphere 2 K ships an update every 5 months, FlashQuest every 10 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | Biosphere 2 K | FlashQuest |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (9 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 9 — better |
| Update frequency | Every 5 months | Every 10 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 16.4 |
| Further details — not scored | ||
| Size | 144 MB | 101 MB |
| Age rating | 4+ | 12+ |
| Developer | University of Arizona | FLASH QUEST (PTY) LTD |
In-app purchases
Biosphere 2 K
No in-app purchases
FlashQuest
- FlashQuest Pro Monthly$6.991 Month
- FlashQuest Pro Monthly1 Month trial$6.991 Month
- FlashQuest Pro Annual$47.991 Year
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- FlashQuest Pro Annual7 Days trial$47.991 Year
- FlashQuest Exam Pass$7.99
Questions
Is Biosphere 2 K free?
Is FlashQuest free?
Do Biosphere 2 K or FlashQuest have ads?
Which is updated more often, Biosphere 2 K or FlashQuest?
Other comparisons
