云谷课堂教师端 vs Adder
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
云谷课堂教师端
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云谷课堂教师端是帮助老师在线收发任务的快捷工具
Adder
This app offers interactive exercises and customizable practice sessions to help students master addition. It features progress tracking and a distraction-free interface, making it ideal for building foundational math skills.
- Interactive addition exercises
- Customizable practice sessions
- Progress tracking
- Distraction-free interface
- Tailored learning experience
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Adder is a native iOS app coded in Swift, designed as a personal project to help students master additions effortlessly. With interactive exercises, customizable practice sessions, and progress tracking, Adder creates an engaging learning experience tailored to individual needs. Its sleek, distraction-free interface and responsive design make it a perfect tool for students, parents, and educators seeking to build strong foundational math skills.
Screenshots
Verdict
The clearest difference is device support: Adder at 3 against 云谷课堂教师端's 1. 云谷课堂教师端's advantage is iOS requirement (13.0 vs 15.6). On price, update cadence, ads and in-app purchases 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.
云谷课堂教师端 ships an update every 2 weeks, Adder weekly. The most recent releases landed on October 26, 2026 and October 28, 2026 respectively.
| Parameter | 云谷课堂教师端 | Adder |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 143 MB | 0 MB |
| Age rating | 4+ | 4+ |
| Developer | Yungu | David Kelen |
In-app purchases
云谷课堂教师端
No in-app purchases
Adder
No in-app purchases
