Logic & Code Atlas vs BioChem Sprint 9
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Logic & Code Atlas
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Logic & Code Atlas is a reasoning workbook for computer science. Students trace pseudocode line by line, record variable changes, and write takeaways that become saved artifacts: trace sheets, debug notes, and algorithm cards. The Atlas explains core topics, while Studio sessions generate prompt runs that end with a required written Session Sheet. Everything stays local with no accounts.
BioChem Sprint 9
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Offline Grade 9 Bio+Chem Study Sprint Studio. Each sprint ends with a saved result, a required “In my own words…” note, and (if needed) a Mistake Reason. Revision Mode uses your notes + reasons to build Focus Sets and create revision cards you keep.
Screenshots
Verdict
The clearest difference is update cadence: BioChem Sprint 9 at every 2 days against Logic & Code Atlas's every 4 days. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Logic & Code Atlas ships an update every 4 days, BioChem Sprint 9 every 2 days. The most recent releases landed on July 16, 2026 and September 10, 2026 respectively.
| Parameter | Logic & Code Atlas | BioChem Sprint 9 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 23 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Anh Ha Thi | Nguyen Khanh Vy |
In-app purchases
Logic & Code Atlas
No in-app purchases
BioChem Sprint 9
No in-app purchases
