Channel
Mobile Development: Kotlin, Swift, React Native, Flutter, Dart, Expo, Capacitor
@APP_Mastery
On this record: Topic · Growth · Engagement · Citations · Telegram's recommendations · Cite this entry
39,654subscribers
-322 since we began measuring on 7 August 2026
Risers and fallers across the register · movement among entries of 31,623–100,000.
Register entry
| Telegram ID | -1001578526838 |
|---|---|
| Type | Channel |
| Username | @APP_Mastery |
| Created | Between 1 August 2021 and 28 February 2023 — estimated from Telegram’s id allocation, not measured. How this range is calculated. |
| First recorded | 12 August 2026 |
| Last confirmed live | 18 September 2026 |
| Measurements held | 34 |
| Confirmed unchanged | 1 time, most recently 18 September 2026 |
| On Telegram | t.me/APP_Mastery |
Topic
Technology — a classification, not a measurement. An on-box language model (Qwen3.6-35B-A3B-FP8, prompt version 1) read this channel’s own recent posts on 9 September 2026 and assigned it the closest of 31 fixed categories, at 87% confidence. This is a model’s judgement about what the channel is likely to be about, not a fact this register measured the way a subscriber count or a view count is measured — it can be revised on a later pass, and it carries no weight anywhere else on this page. How this classification works, and why it has no browse page of its own yet.
Growth
| Measured (UTC) | Subscribers | Change |
|---|---|---|
| 18 Sept 2026, 11:16 | 39,654 | -16 |
| 16 Sept 2026, 06:40 | 39,670 | -5 |
| 14 Sept 2026, 10:17 | 39,675 | -25 |
| 12 Sept 2026, 22:58 | 39,700 | -8 |
| 11 Sept 2026, 00:37 | 39,708 | -25 |
| 8 Sept 2026, 02:02 | 39,733 | -43 |
| 4 Sept 2026, 21:57 | 39,776 | -15 |
| 3 Sept 2026, 05:53 | 39,791 | -3 |
| 2 Sept 2026, 03:28 | 39,794 | -5 |
| 1 Sept 2026, 03:39 | 39,799 | -10 |
| 31 Aug 2026, 02:45 | 39,809 | +2 |
| 29 Aug 2026, 23:34 | 39,807 | -3 |
| 28 Aug 2026, 21:58 | 39,810 | -5 |
| 27 Aug 2026, 23:04 | 39,815 | -12 |
| 27 Aug 2026, 00:53 | 39,827 | -10 |
| 25 Aug 2026, 23:24 | 39,837 | -11 |
| 25 Aug 2026, 02:54 | 39,848 | -18 |
| 23 Aug 2026, 16:35 | 39,866 | -22 |
| 22 Aug 2026, 04:48 | 39,888 | -7 |
| 20 Aug 2026, 18:38 | 39,895 | first reading |
Engagement
No public post preview. We read this entry on 12 August 2026 and Telegram serves no public post stream for it — the channel has previews switched off, or it is a group or bot with no readable feed. Views, reactions and engagement rates cannot be measured from the outside for an entry in this state, so we publish none. Subscriber counts above are unaffected.
Mentions
Named by 9 registered channels — every channel on the register whose own posts have named this one, by its current username or any other username it currently holds, merged from two separately captured readings of the same fact so a namer caught by only one of them is not missed and a namer both caught is not counted twice. A username this channel has since dropped is not matched — that handle may belong to someone else now, and crediting today’s namer to yesterday’s owner would misattribute it.
Named by
Channels on the register whose posts name this channel's handle.
@premium_channels_directory · 1,8442 postsCrypto Lessons
@cryptotutorials_101 · 30,4851 postBest Telegram Channels
@Gram_Channels · 41,8721 postLinkedin Learning Courses
@LinkedinLearning1 · 35,7071 postAi Tools: ChatGPT, Midjourney, Deepseek
@OpenAI_Mastery · 50,0641 post100 Days of Code – The Complete Python Pro Bootcamp
@python_100_days_of_code · 51,0291 postLearn React and NextJs
@React_Training · 62,9221 postSoft Skills
@SoftSkills101 · 35,3631 postData Science
@sql_databases · 70,5991 post
A mention is a weaker signal than a forward and is counted separately for that reason — naming a channel is not republishing it, and a handle in a post body is easy to place deliberately. The post counts beside each row below are distinct posts in which the handle appeared, from posts we have read on both sides — the “Named by N registered channels” figure above is a different count, of distinct NAMING CHANNELS rather than posts, and is not the sum of the rows under it.
Channels Telegram recommends alongside this one
Telegram’s own answer, not this register’s. When this register asks Telegram’s API what is similar to this channel, this is the list it returns, in the exact order Telegram returns it — never re-sorted by subscribers or by anything else this register measures. The relationship, and the order, are Telegram’s; we record them and date them, and make no claim of our own about which of these channels actually resemble this one.
@React_Training · 62,922#1
@SoftSkills101 · 35,363#2
@ZTM_ACADEMY · 41,331#3
@webdevcoursefree · 79,578#4
@codedamn · 34,360#5
@ready_dot_code · 8,465#6
@javascript · 31,128#7
@Thunder_Script · 587#8
@webdev_trainings · 133,855#9
@JavaScript_Trainings · 96,712#10
@sql_databases · 70,599#11
@udemyrip · 68,291#12
@cryptotutorials_101 · 30,485#13
@python_100_days_of_code · 51,029#14
@CodingDrive · 13,835#15
@Master_Coding_Interview · 30,113#16
@Python53 · 50,715#17
@pythonEB · 2,645#18
@DataAnalyticsX · 30,208#19
@javascript_courses · 55,698#20
@josad_software · 14,135#21
@Programming_experts · 67,682#22
@ml_ds_ai_jobs · 25,932#23
@threejsbybrunosimon · 5,937#24
@chapidevtalks · 10,318#25
@Learn_Solidworks · 27,372#26
@remote_frontend_jobs · 4,737#27
@CodeProgrammer · 68,301#28
@megacoursenew · 38,858#29
@AutoCAD_Explained · 25,150#30
@programming_guide · 56,038#31
@riseT99 · 21,348#32
@Udemy4U · 115,585#33
@aineeringdotcom · 16,029#34
@remote_mobile_jobs · 781#35
@FlutterBegin · 841#36
@machinelearning_deeplearning · 55,794#37
@udemy_free_courses_with_certi · 70,681#38
@ai_codin · 26,139#39
@crackingthecodinginterview · 52,232#40
@machine_learning_courses · 95,724#41
@Learn_Business_101 · 52,476#42
@AI_Agentic_Coding · 25,054#43
@Python_100_Days_of_Code_Udemy · 22,187#44
@pythonRe · 40,364#45
@PaperNexus · 33,858#46
@MachineLearning9 · 41,424#47
@remote_python_jobs · 4,955#48
@datasciencefun · 77,580#49
@datasciencefree · 68,434#50
@proxyhunk2 · 3,197#51
@sqlanalyst · 76,675#52
@pwwebdev · 3,112#53
@ProgramsStore · 15,417#54
Read from Telegram’s recommendation API, most recently 30 August 2026. Telegram holds a list like this for a small and growing share of the register — how this is measured, and why most channel pages show nothing here.
Appears in Telegram’s recommendations for other channels
The reverse of the list above, and a different kind of signal. This does not require this channel to have ever been asked about directly — each row below is a channel we DID ask Telegram about, whose Telegram-generated list happened to include this one. A channel can appear here with an empty list above it, because being named by someone else’s query is independent of having been queried itself.
@ZTM_ACADEMY · 41,331
Telegram ranks this channel #2 of 54 here — alongside 53 others — read 29 August 2026
@SoftSkills101 · 35,363
Telegram ranks this channel #3 of 59 here — alongside 58 others — read 2 September 2026
@React_Training · 62,922
Telegram ranks this channel #4 of 64 here — alongside 63 others — read 21 August 2026
@codedamn · 34,360
Telegram ranks this channel #7 of 60 here — alongside 59 others — read 3 September 2026
@Master_Coding_Interview · 30,113
Telegram ranks this channel #14 of 60 here — alongside 59 others — read 7 September 2026
@cryptotutorials_101 · 30,485
Telegram ranks this channel #15 of 63 here — alongside 62 others — read 7 September 2026
@AI_Agentic_Coding · 25,054
Telegram ranks this channel #16 of 67 here — alongside 66 others — read 14 September 2026
@ai_codin · 26,139
Telegram ranks this channel #18 of 50 here — alongside 49 others — read 14 September 2026
@sql_databases · 70,599
Telegram ranks this channel #19 of 73 here — alongside 72 others — read 20 August 2026
@AutoCAD_Explained · 25,150
Telegram ranks this channel #20 of 50 here — alongside 49 others — read 14 September 2026
@Python_100_Days_of_Code_Udemy · 22,187
Telegram ranks this channel #21 of 67 here — alongside 66 others — read 21 September 2026
@JavaScript_Trainings · 96,712
Telegram ranks this channel #22 of 68 here — alongside 67 others — read 16 August 2026
@Learn_Solidworks · 27,372
Telegram ranks this channel #25 of 51 here — alongside 50 others — read 11 September 2026
@Artificial_Intelligence_COM · 72,007
Telegram ranks this channel #30 of 46 here — alongside 45 others — read 20 August 2026
@LinuxMastery · 67,565
Telegram ranks this channel #36 of 60 here — alongside 59 others — read 22 August 2026
@python_100_days_of_code · 51,029
Telegram ranks this channel #37 of 65 here — alongside 64 others — read 25 August 2026
@webdev_trainings · 133,855
Telegram ranks this channel #38 of 65 here — alongside 64 others — read 13 August 2026
@linkedin_learning · 217,924
Telegram ranks this channel #43 of 65 here — alongside 64 others — read 11 August 2026
@LearnPython3 · 125,222
Telegram ranks this channel #49 of 65 here — alongside 64 others — read 13 August 2026
@flutterDev · 22,422
Telegram ranks this channel #53 of 87 here — alongside 86 others — read 20 September 2026
@OpenAI_Mastery · 50,064
Telegram ranks this channel #54 of 65 here — alongside 64 others — read 25 August 2026
@webdevcoursefree · 79,578
Telegram ranks this channel #54 of 79 here — alongside 78 others — read 19 August 2026
@techandtarget · 22,619
Telegram ranks this channel #56 of 62 here — alongside 61 others — read 20 September 2026
@machine_learning_courses · 95,724
Telegram ranks this channel #66 of 74 here — alongside 73 others — read 16 August 2026
This channel appears in 31 seed channels' Telegram-generated recommendation lists in total, of which the 24 where it ranks highest are shown above. Each is Telegram’s list for THAT channel, not this one — see how this is measured.
Cite this entry
A live page changes as we take new readings, so a citation should name the measurement it is based on, not just the URL. The line below cites the subscriber count as measured 18 September 2026 — this entry's latest reading, not the date you are reading this.
“Mobile Development: Kotlin, Swift, React Native, Flutter, Dart, Expo, Capacitor” (@APP_Mastery), 39,654 subscribers as measured 18 September 2026. Telegram Register, tgregister.com/channel/APP_Mastery.
Full measurement history, CC BY 4.0. Every reading this register holds for this entry, not just the latest one, as a dated, downloadable record: CSV · JSON. Free to use with attribution to tgregister.com. Each file carries its own generation timestamp, which is the figure to cite for exactly when the data was retrieved.