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Channel

Kotlin developer

@Kotlin0

On this record: Topic · Growth · Engagement · What this channel posts · Posts · Polls · Citations · Cite this entry

5,792subscribers

-43 since we began measuring on 7 August 2026

Risers and fallers across the register · movement among entries of 3,162–10,000.

Register entry

Telegram ID-1001149209108
TypeChannel
Username@Kotlin0
DescriptionКанал Kotlin посвящён изучению и применению языка программирования Kotlin в различных областях По всем вопросам пишите @itru1
CreatedBetween 1 March 2016 and 31 October 2019 — estimated from Telegram’s id allocation, not measured. How this range is calculated.
First recorded7 August 2026
Last confirmed live5 November 2026
Measurements held18
Confirmed unchanged2 times, most recently 5 November 2026
On Telegramt.me/Kotlin0

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 12 September 2026 and assigned it the closest of 31 fixed categories, at 99% 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 the other topics.

Growth

5,7925,8355,813.57 August 2026 — 5,835 subscribers7 August 2026 — 5,835 subscribers14 August 2026 — 5,832 subscribers17 August 2026 — 5,827 subscribers20 August 2026 — 5,824 subscribers29 August 2026 — 5,825 subscribers1 September 2026 — 5,824 subscribers10 September 2026 — 5,823 subscribers17 September 2026 — 5,821 subscribers27 September 2026 — 5,809 subscribers5 October 2026 — 5,807 subscribers12 October 2026 — 5,804 subscribers15 October 2026 — 5,802 subscribers17 October 2026 — 5,798 subscribers20 October 2026 — 5,796 subscribers26 October 2026 — 5,795 subscribers29 October 2026 — 5,794 subscribers1 November 2026 — 5,792 subscribers7 August 20261 November 2026
18 measurements spanning 86 days, net -43. Dots are measurements; the straight line between them is drawn to join them, not to claim we know the path taken in between — snapshots are recorded only when a count changes, so gaps mean “no change observed”, never “interpolated”. The vertical axis spans 5,786–5,841 and does not start at zero.
Measurement log — every subscribers count we have recorded
Measured (UTC)SubscribersChange
1 Nov 2026, 16:475,792-2
29 Oct 2026, 16:555,794-1
26 Oct 2026, 19:565,795-1
20 Oct 2026, 22:005,796-2
17 Oct 2026, 22:455,798-4
15 Oct 2026, 00:065,802-2
12 Oct 2026, 02:415,804-3
5 Oct 2026, 12:375,807-2
27 Sept 2026, 14:415,809-12
17 Sept 2026, 22:415,821-2
10 Sept 2026, 09:395,823-1
1 Sept 2026, 15:035,824-1
29 Aug 2026, 14:545,825+1
20 Aug 2026, 11:425,824-3
17 Aug 2026, 19:455,827-5
14 Aug 2026, 18:455,832-3
7 Aug 2026, 09:015,835no change
7 Aug 2026, 08:535,835first reading

Engagement

18 posts held, back to 3 June 2025 — the reader has not yet reached the start of this channel’s public history, so older posts may sit further back, unread. Read across 10 pages of Telegram’s post history, 20 posts per page.

ERR · 30 days
23.3%
avg views ÷ 5,792 subscribers
Avg views / post
1,350
1 post measured
Reaction rate
—
this channel exposes no reaction counts
Posts in window
1
of 18 held

ERR is average views per post over the last 30 days divided by subscribers, the definition TGStat uses, so this figure is comparable with the one you will see elsewhere. It falls structurally as a channel grows: a high ERR on a small channel and a low one on a large channel describe reach mathematics, not quality. We publish the figure and the sample it came from and pass no verdict on it.

ER is defined industry-wide as (forwards + reactions + comments) ÷ views — note the denominator is views, not subscribers. Telegram’s public web preview carries views and reactions but not forward or comment counts, so the reaction rate above is the reactions term only and is therefore a floor: the true ER for this channel is higher by an amount we have not measured and will not estimate.

What these figures were computed from
WindowRolling 30 days · latest post in window 13 October 2026
Posts held18 (3 June 2025 – 13 October 2026)
Views total1,350
Reactions total—
Forwards / commentsnot exposed by the public surface — not measured, not estimated
Readings taken4 Nov 2026, 18:58 UTC

Views are a single reading per post, taken at the time above. A post published in the last day or two is still accumulating views, which pulls the 30-day average down slightly. That is a property of the standard definition rather than a fault in it, so we keep the definition rather than “correcting” the number into something nobody can reproduce.

Precision. Telegram publishes view counts on its public widget in short form — 8.12K, 3.7M — so any reading at or above 1,000 reaches us rounded to three significant figures, and only counts below 1,000 are exact. Averages and rates derived from them are shown to the same precision rather than to the unit: a figure like 3,701,250 would assert digits nobody measured.

Reaction counts are published per emoji and rounded the same way, so a total below 1,000 is exact and a larger one is a sum that may carry a rounded component from each emoji above 1,000. Because it is a sum, it does not look rounded — read a large reaction total as three significant figures per contributing emoji rather than as the figure it prints.

What this channel posts

Photos
≈28
Videos
≈1
Links
≈1,240

Lifetime counters from Telegram’s own channel header, read 4 November 2026 — not the date at the top of this page, which is when the subscriber count was last read. A count marked ≈ was rounded by Telegram before we ever saw it — t.me prints these counters in full below 1,000 and to three significant figures above, so ≈142,000 means somewhere between 141,500 and 142,499.

Video runtime
5m 41s
Average length
5m 41s

Measured directly from 1 video with a duration reading, out of the posts we hold for this channel — not this channel’s whole posting history, only the sample this register has actually read. An exact reading to the second, taken from the post itself rather than from Telegram’s own rounded chrome, so it carries no ≈ mark.

Recent posts

Telegram’s own ‘edited’ marker: 0 of 1 post held from the last 30 days (0%) carried it when this register last read them. The marker says a post was changed after publishing, not what it said before — this register holds the earlier wording only where an edit fell between two of its own reads (see the edit ledger and how it is measured).

13 Oct 2026, 09:30 UTC≈1,350 viewsread 4 November 2026

В OpenIDE Pro появилась публичная бета поддержки Jupyter Notebook Читать...

8 Jun 2026, 09:56 UTC≈2,270 viewsread 4 November 2026
Photo

🚀 Фишка Kotlin: Безопасный каст с помощью оператора as? В Java при неверном приведении типов можно легко поймать ClassCastException. В Kotlin эту проблему элегантно решает оператор безопасного каста as?. Если объект нельзя привести к нужному типу, он не ломает приложение, а просто возвращает null. В сочетании с оператором Элвиса (?:) это позволяет писать чистый и безопасный код: ```kotlin // Вместо краша получаем …

21 May 2026, 10:18 UTC≈3,120 viewsread 4 November 2026

Рейтинг технологий для мобильной разработки для банков в 2026 году Читать...

20 May 2026, 14:59 UTC≈2,740 viewsread 4 November 2026

Google AI Studio теперь создает нативные Android-приложения без SDK, среды и знания Kotlin. Читать...

18 May 2026, 09:32 UTC≈3,130 viewsread 4 November 2026

Kotlin переходит к деструктурированию по именам Читать...

13 May 2026, 09:37 UTC≈4,210 viewsread 4 November 2026

Subject Matter Expert. Чёрная Метка Для Разработчика Это не совсем привычная для меня статья, но я давно хотел поделиться одним своим наблюдением. В ней не будет никаких вещей, связанных непосредственно с разработкой на Java или Kotlin, не будет кода. Я просто решил поделиться опытом. Я надеюсь, читать эту статью Вы будете вечером, в спокойный, выходной день. Читать...

4 May 2026, 15:29 UTC≈2,870 viewsread 4 November 2026
Photo

Весь AI-стек Google в одной подписке — Google AI Pro целиком. У Google $200/год, у нас 3 999 ₽ за год. 🧠 Gemini 3.1 Pro — контекст 1 млн токенов 🎬 Veo 3.1 — генерация видео из текста, до 3 в день + 50 через Flow 🎨 Nano Banana Pro — картинки 4K с корректным русским текстом, до 100 в день 🔬 Deep Research — глубокий анализ по сотням источников, 20 отчётов в день 📓 NotebookLM — личная база знаний на 300 источников на пр…

17 Apr 2026, 09:25 UTCviews —

Kotlin developer pinned «Всем привет! Коллеги, чтобы быть более точнее в подборках материала для вас, хочу понять, что вам интересно и на чем вы программируете. Пройдите пожалуйста простой опросик. Можно выбрать несколько опций.»

17 Apr 2026, 09:02 UTC≈2,190 viewsread 4 November 2026
Poll

Всем привет! Коллеги, чтобы быть более точнее в подборках материала для вас, хочу понять, что вам интересно и на чем вы программируете. Пройдите пожалуйста простой опросик. Можно выбрать несколько опций.

  1. Java для backend-разработки11%
  2. Java для мобильной разработки4%
  3. Kotlin для backend-разработки41%
  4. Kotlin для мобильной разработки61%
  5. Python5%
  6. Ни то ни другое, что я тут вообще забыл1%
  7. Посмотреть ответы4%

The shares total 127%, above 100: this poll accepts more than one answer per voter. No per-option vote count is published, so the number of voters who chose each option is not derivable and is not shown.

28 Oct 2025, 10:24 UTC≈4,700 viewsread 4 November 2026
Photo

💻 github-workflows-kt — инструмент на Kotlin для создания рабочих процессов GitHub Actions github-workflows-kt поможет писать типобезопасный код на Kotlin для организации надежных рабочих процессов, планирования GitHub Actions и т.д. 🖥 GitHub 🟡 Доки

25 Sept 2025, 08:35 UTC≈2,370 viewsread 4 November 2026
Photo

👩‍💻 FlexibleBottomSheet — мощный и настраиваемый компонент для работы с нижними листами (bottom sheets) в Jetpack Compose, включая мультиплатформенную поддержку! 🌟 Он позволяет использовать сегментированные размеры, настраивать модальные и немодальные типы листов, а также обеспечивает взаимодействие с элементами позади листа, как в Google Maps. Библиотека поддерживает три уровня расширения (полное, промежуточное и с…

9 Sept 2025, 07:46 UTC≈2,930 viewsread 4 November 2026

readline4k - Kotlin/Native библиотека для разработки консольных интерактивных приложений для Desktop val history = "history.txt" // Filesystem path to the history file. // Configure the LineEditor. val config = LineEditorConfig( maxHistorySize = 100, completionType = CompletionType.LIST, // See the documentation for more options. ) // Create a new LineEditor instance. val editor = SimpleLineEditor( …

Showing the 12 most recent of 18 posts we hold for @Kotlin0. View and reaction counts are the latest single reading for each post, not a live figure, and a recent post is still accumulating both. A view count marked ≈ was rounded by Telegram before we ever saw it — t.me prints views in full below 1,000 and to three significant figures above, so ≈1,200,000 means somewhere between 1,150,000 and 1,249,999. Unmarked counts are exact. Text is reproduced from the public post preview and truncated for length.

Polls

The 2 polls we hold for this entry, as Telegram rendered them when we read the post. A poll’s figures keep moving after that, so each one is dated.

17 Apr 2026, 09:02 UTCAnonymous Poll307 voters

Всем привет! Коллеги, чтобы быть более точнее в подборках материала для вас, хочу понять, что вам интересно и на чем вы программируете. Пройдите пожалуйста простой опросик. Можно выбрать несколько опций.

  1. Java для backend-разработки11%
  2. Java для мобильной разработки4%
  3. Kotlin для backend-разработки41%
  4. Kotlin для мобильной разработки61%
  5. Python5%
  6. Ни то ни другое, что я тут вообще забыл1%
  7. Посмотреть ответы4%

The shares total 127%, above 100: this poll accepts more than one answer per voter. No per-option vote count is published, so the number of voters who chose each option is not derivable and is not shown.

30 Jun 2025, 16:52 UTCAnonymous Poll356 voters

Допускали ли вы баги (креши, некорректное поведение и прочее) по причине игнорирования возвращаемого значения в функции?

  1. Да33%
  2. Нет36%
  3. Затрудняюсь ответить8%
  4. Не участвую в опросе23%

Shares as published. No per-option vote count is published by Telegram, so none is shown.

Percentages only — there are no per-option vote counts here, because Telegram publishes none. The public post preview gives each option’s share and a single voter total, and nothing else. Multiplying one by the other would produce a per-option tally that looks measured and is not: the shares are rounded to whole numbers before we ever see them. We print what was published and leave the column that does not exist empty.

The shares need not add up to 100. Rounding alone puts many polls at 99 or 101. A poll that allows more than one answer per voter runs well past 100 by design, and several here do. The bars are drawn against a fixed 100% track at each option’s own percentage rather than normalised to the total, so a poll that exceeds it shows that it does instead of being quietly rescaled.

Read from the 18 most recent posts we hold, published 3 June 2025 to 13 October 2026. Telegram labels each poll by kind — an anonymous poll, a quiz, a closed set of final results — and that label is reproduced rather than paraphrased.

Forward network

Republishes

Channels on the register whose posts this channel has forwarded.

Built only from forwarded posts we have actually read, on both sides. Coverage is early and deliberately incomplete: a missing link means we have not read the post that would prove it, never that the relationship does not exist. Counts are distinct forwarded posts observed, so they only ever go up as we read more.

Mentions

Names

Channels on the register whose handles appear in this channel's posts.

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.

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 1 November 2026 — this entry's latest reading, not the date you are reading this.

“Kotlin developer” (@Kotlin0), 5,792 subscribers as measured 1 November 2026. Telegram Register, tgregister.com/channel/Kotlin0.

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.