Common Error vs Attend Class
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Common Error
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People with English as their second language make some very common mistakes while speaking or writing in English. The mistakes most of the times are grammar related, framing the questions in wrong manner or small preposition/articles mistakes. Some mistakes could be very embarrassing. With this app you can understand, learn & improve on those mistakes.
Attend Class
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Attend is a biometric and location-based attendance platform built for university students and lecturers. Instead of paper sheets, manual call-outs, or easily manipulated sign-in processes, Attend lets students mark their own attendance directly from their phones ; verified by their face and their location ; while giving lecturers a real-time, trusted record of who is present. How it works for students: 1. Open the app at the start of class 2. Verify your identity with a selfie 3. Your attendance is marked instantly and securely How it works for lecturers: 1. Start a session for your course 2. Watch attendance populate in real time 3. End the session when class is done Attend is built with fraud prevention at its core. Each student is tied to their own device. Location is verified at the point of marking. Proxy attendance (where one student marks attendance for another ) is detected and blocked automatically.
Screenshots
Verdict
The clearest difference is update cadence: Attend Class at every 2 months against Common Error's every 35 months. Common Error's advantage is iOS requirement (7.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Common Error ships an update every 35 months, Attend Class every 2 months. The most recent releases landed on October 5, 2026 and October 4, 2026 respectively.
| Parameter | Common Error | Attend Class |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 35 months | Every 2 months โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod โ better |
| Requires iOS | 7.0 โ better | 15.6 |
| Further details โ not scored | ||
| Size | 7 MB | 65 MB |
| Age rating | 4+ | 4+ |
| Developer | Le Thi Quynh Ny | JOHN OLUSEGUN ADEYEMO |
In-app purchases
Common Error
No in-app purchases
Attend Class
No in-app purchases
Questions
Is Common Error free?
Is Attend Class free?
Do Common Error or Attend Class have ads?
Which is updated more often, Common Error or Attend Class?
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