Channel
Mobile Development: Kotlin, Swift, React Native, Flutter, Dart, Expo, Capacitor
@app_mastery
Created February 27, 2022Advertised since April 2026
EN · EnglishSponsored-eligible
Mobile Dev Hub: iOS, Android & Cross-Platform Coding Tips & Tools Buy ads: https://telega.io/c/APP_Mastery
Members
40,011
Avg. views
3,204
CPM (est.)
—
Ads indexed
30
Updated: 2026-07-09
Cashier signals
Paid media
Yes
Paid reactions
Yes
Paid messages
Yes
Alert via Telegram BotWeb alerts on tgads.observertgads.observerFull audience & growth statstelegramstats.netHow to advertise in this nichetgads.net
Ad niches in this channel
Top advertisers in this channel
- 2fnbt.linkfnbt.link
- 1@risktop_bot@risktop_bot
- 1@goal24main@goal24main
- 1@telescope@telescope
- 1@onlychats@onlychats
- 1@myhbdnews@myhbdnews
Activity
04-208 weeks06-29
Recent posts
- 2026-03-01
The useEffect clean-up callback executes on every render Most people think it executes only when the component unmounts, but that’s not true. On every render, the clean-up callback…
- 2025-11-03
Media post
22,244 viewsOpen in Telegram - 2025-11-03
🚀 Full-Screen Image Viewer in Expo Made Easy Andrew Chester shows how to implement a sleek, full-screen image viewer with zoom using Expo and the @likashefqet/react-native-image-z…
- 2025-10-27
🔅 27 - Visibility modifiers
- 2025-10-27
🔅 28 - Generics
17,428 views4 reactions
Sponsored impressions seen in this channel · EUR cabinet
Flags — countries where our network of observers on Telegram recorded this ad being shown in this channel. It's not the advertiser's targeting country: Telegram serves sponsored ads worldwide, and we simply note where the ad appeared in the feed. The channel's main country (by its language) is highlighted in blue; rare placements (under 5%) are collapsed into “+N”.
