VN vs Formulas & Forces Lab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VN
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VN Physics 7 is an offline study companion for Vietnamese Grade 7 students. It offers clear physics lessons, topic-based quizzes, mock exams, and engaging mini-games. Students can track learning streaks, earn badges, and review quiz history to improve exam readiness anytime, anywhere.
Formulas & Forces Lab
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Formulas & Forces Lab is an offline study portfolio for 6th grade Math and Physics. Instead of focusing on scores, students produce study artifacts: Explain-It cards, Worked-Solution rewrites, Mistake Pattern cards, session summaries, and revision plans. Practice and review prompts are used to generate reflections and structured write-ups that stay on-device. A built-in portfolio exporter creates a shareable PDF notebook from recent artifacts and active revision plans. No accounts, no analytics, and no network access—everything is bundled locally and stored privately on the device.
Screenshots
Verdict
VN and Formulas & Forces Lab are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
| Parameter | VN | Formulas & Forces Lab |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | — |
| 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 | 22 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Dung Do Tri | Tuan Do Bao |
In-app purchases
VN
No in-app purchases
Formulas & Forces Lab
No in-app purchases
Questions
Is VN free?
Is Formulas & Forces Lab free?
Do VN or Formulas & Forces Lab have ads?
Other comparisons
