# Strnadi — Nahrávání a sledování Strnadů

> Nahrávání a sledování Strnadů (iPhone/iPad app by DELTA - Stredni skola informatiky a ekonomie, s.r.o..)

- Source: https://appshunter.io/ios/app/strnadi/id6740916079 (this page in markdown: same URL + `.md`)
- Developer: [DELTA - Stredni skola informatiky a ekonomie, s.r.o.](https://appshunter.io/developer/1714008202)
- Category: Entertainment
- Price: Free
- Age rating: 4+
- Requires: iOS 16.2 · 48 MB
- Languages: English
- Released: 2025-10-21
- Data updated: 2026-09-11
- User reviews in markdown: https://appshunter.io/ios/app/strnadi/id6740916079/reviews.md

## What is Strnadi?

The aim of the citizen science project Dialects of Czech Yellowhammers (Nářečí českých strnadů) is to map the distribution of the dialects of the Yellowhammer in Czechia and thus to reveal what influences the stability of bird dialects in the landscape (and the evolution of animal culture in general). 
You can also become a citizen scientist filling in previously uncharted areas! Install the mobile app “Strnadi”, register to the project and record the song of the Yellowhammer anywhere in Czechia – whether in your neighbourhood or during trips to the countryside.

Why do we record Yellowhammers?
The Yellowhammer (Emberiza citrinella) is a bird with a simple but very interesting song. It seems that each individual in a particular population sings its own unique combination of phrases, but the final part of the song is shared among birds in a particular region: Yellowhammers have their own dialects.
The original citizen science project Dialects of Czech Yellowhammers, which run between 2011-2016, revealed that Czechia is a country particularly rich in yellowhammer dialects. We have managed, with the aid of numerous volunteers, to map almost the entire territory of the country. This has made Czechia one of the best-studied regions in the world in terms of bird dialects. We have discovered several unusual local dialects that are different from the common ones known from other parts of Europe.
Knowledge of the distribution of bird dialects allows us to investigate many general questions about animal culture: for example, how dialects originate and what maintains them, or how birds respond to changes in their environment. To answer some of these questions, however, it is necessary to collect repeatedly large amounts of data from the whole country, which is essentially impossible without public involvement.
The Yellowhammer is an ideal species for research on bird dialects. Although it is declining in many places, it is still abundant in Czech landscape and its song is simple and easily recognisable. Moreover, Yellowhammers sing for a long time - from early spring to mid-summer.
What are we interested in?
Are the boundaries of yellowhammer dialects stable over time? If not, have they shifted due to recent changes in landscape use (e.g., the "bark beetle calamity" that led to loss of spruce monoculture forests in many regions)? Are the unique local dialects that we discovered ten years ago in several places in Czechia stable, or do they tend to spread or shrink? These are just some of the questions we are going to study.


## Version history (last 5 releases)

### 1.6.0 — 2026-06-08

Minor bug fixes

### 1.5.05 — 2026-04-23

Minor changes on the map

### 1.5.04 — 2026-03-25

Bug fixes

### 1.5.02 — 2026-03-25

Version 1.5.02
- Added language fallback for article markdown loading (preferred language -> en-US -> cs-CZ) in Blog Explorer and Guide pages.
- Improved first-run language resolution by detecting supported device language (cs/en/de) and persisting user preference.
- Unified post-auth navigation to the session landing screen across login, registration, and unverified-email flows.
- Added safer Android back-navigation handling on key screens to avoid unwanted exits and keep users in the session flow.
- Localized offline/auth warning dialogs and terms screen labels for more consistent messaging.

### 1.5.1 — 2026-02-27

Version 1.4.18
- Improved stability across authentication and registration flows.
- Updated localization content and consistency for supported languages.
- Improved reliability in map, recording, and database-related behavior.

Version 1.4.19
- Improved authentication and account flow stability across login, registration, and password recovery.
- Refined recording, map, and dialect-related behavior for more consistent playback and data presentation.
- Reworked data, upload, and notification handling to improve reliability of offline-to-online synchronization.

Version 1.4.20
- Migrated iOS app lifecycle to a scene-based setup (`UISceneManager`/`FlutterSceneDelegate`) for better compatibility with newer iOS runtime behavior.
- Refactored authentication and registration API calls to use centralized `AuthController` and `UserController` flows instead of direct HTTP calls.
- Improved login, sign-up, and password reset handling with stronger response parsing, user ID retrieval checks, and clearer error logging across email, Google, and Apple flows.

Version 1.5.0
- Added a new Blog tab in bottom navigation with categorized article browsing, search, and localized content loading.
- Added a notification bell with an unread indicator and improved notification handling when opening the notifications screen.
- Improved guide and article reading flows with dedicated guide access, better Markdown link/image support, and multiple UI/auth reliability fixes.

## Apps similar to Strnadi

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Caty - Catch Stray Cats](https://appshunter.io/ios/app/caty-catch-stray-cats/id6783426646) | — | Free | Entertainment |
| [Povaleč](https://appshunter.io/ios/app/povalec/id6450306587) | — | Free | Entertainment |
| [Seasonia: Season Tracker](https://appshunter.io/ios/app/seasonia-season-tracker/id6758340712) | 4.5 (21) | $5.99 | Entertainment |
| [Jolanda 2](https://appshunter.io/ios/app/jolanda-2/id1493136086) | — | Free | Entertainment |
| [KVIFF TV](https://appshunter.io/ios/app/kviff-tv/id6758663683) | — | Free | Entertainment |
| [Arthur](https://appshunter.io/ios/app/arthur/id1456589853) | — | Free | Entertainment |

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-11.*