PE.Mech vs 新英语900句
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PE.Mech
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This app is aimed at mechanics part and includes 11 experiments about: kinematics, Newton's laws of motion, work and energy, momentum and impulse, periodic motion etc. It has some features: 1. You can set ideal conditions, for example: friction=0, air resistance=0, any gravity acceleration; 2. Show changing physical values by function diagram, free body diagram, energy diagram etc in real time to compensate for the lack of real experiments; 3. You can set any reasonable parameters to see different results, and calculate them by the descriptions to test your understanding; 4. Suitable for use in high school and college students; I hope this app can help you in your physics learning.
新英语900句
Master essential English daily expressions through 60 units with AI analysis and native American pronunciation. Practice listening, speaking, and typing with bilingual support and sentence cards for comprehensive learning.
- 60 daily expression units
- Native American pronunciation
- AI analysis
- Listening practice
- Speaking practice
- Typing practice
- Bilingual support
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新英语900句·生活篇 60个单元，包含最基础的英语日常生活表达，真人美式发音，中英发音，AI解析。 听力练习、口语练习、打字练习、中英对照、句子卡片，磨耳朵 6个学习步骤，让您能听懂、看懂、能说、能写。 联系：bwbynn@163.com QQ群 753152718 (不用注册、不用联网、没有广告、没有内购，本地播放，方便学生随时随地学习)
Screenshots
Verdict
The clearest difference is update cadence: PE.Mech at every 2 months against 新英语900句's every 6 months. 新英语900句's advantage is device support (3 vs 1). On price, ads, in-app purchases 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
PE.Mech costs $0.99 and 新英语900句 $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
PE.Mech ships an update every 2 months, 新英语900句 every 6 months. The most recent releases landed on September 11, 2026 and October 1, 2026 respectively.
| Parameter | PE.Mech | 新英语900句 |
|---|---|---|
| Price | $0.99 | $0.99 |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Every 2 months — better | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 35 MB | 63 MB |
| Age rating | 4+ | 4+ |
| Developer | 巍 顾 | 水生 王 |
In-app purchases
PE.Mech
No in-app purchases
新英语900句
No in-app purchases
