Ship your software in Polish without breaking the build
Polish software localization is the engineering-aware adaptation of UI strings, locale-aware formats and Polish plural rules (one / few / many / other) for the pl-PL locale. ISO 17100-certified linguists, native to Polish, working in your file format and your platform — PO, XLIFF, JSON, .properties, Crowdin, Phrase, Lokalise.
Localization is not translation. It is locale engineering with a linguist on the keyboard.
Software localization (l10n) is the linguistic and cultural adaptation of a software product for a specific locale. For Polish, that means translating UI strings into native PL-PL, then adapting locale-aware date / number / currency formats, Polish plural rules, sort order, name and address conventions, and any cultural references that do not travel.
It is not the same as internationalization (i18n), which is the engineering work that lets your product be localized in the first place — externalising strings, handling Unicode, supporting plural rule sets, and managing layout. Aploq does the linguistic side. We work with your i18n setup, or flag where it needs reinforcement before translation begins.
The single most expensive Polish localization mistake is treating it like a string-by-string translation. Below is what an English source string looks like once Polish plural rules and inflection are applied.
Send the format you ship in. We translate it in place.
No round-tripping through Word documents, no losing IDs and placeholders. Your engineers ship the file you have, our linguists translate the values, and you receive the same file back with PL-PL strings populated.
Format you don’t see? Send it — our localization engineers handle custom XML schemas, in-house formats and bespoke build outputs regularly.
Plug into the toolchain you already run
For continuous localization on every commit, we connect directly to your localization platform via API. New strings flow to our translators automatically; translated strings flow back to your repo without anyone touching a CSV.
Six things that silently break Polish builds
A Polish localization engineer’s job is mostly preventing six categories of bug. We catch and fix these before they reach production — or, better, before translation even starts.
Plural rules are 4, not 2
If your i18n schema only has one and other, every Polish plural string is silently wrong for ~70% of integer values. We audit your schema before translation and flag missing categories so engineering can extend it.
Text expansion blows out layouts
Polish UI strings are typically 20–30% longer than English. Buttons, banners and printed templates designed for English will overflow. We pseudo-localize before translation to surface this and propose layout fixes.
Diacritics and broken UTF-8
Polish uses 9 diacritical letters (ą, ę, ó, ś, ć, ź, ż, ł, ń). If your CMS, font fallback, font subset, build pipeline or print stack mishandles UTF-8, the result is mojibake users will spot in the first sentence.
Inflection and case agreement
Polish has 7 grammatical cases. The same English noun has up to 14 forms in Polish depending on grammatical role. String concatenation that works in English ("Open " + filename) breaks Polish grammar. We re-engineer messages or use full-sentence templates.
Locale-aware formatting
Polish uses comma as decimal separator and space as thousands separator. Currency symbol follows the value (1 234,56 zł). 24-hour clock. Date as DD.MM.YYYY. If you are passing raw numbers to display, you need Intl.NumberFormat('pl-PL') on output.
Vocative form for direct address
Polish has a vocative case used in direct address. Form-letter Hello {firstName} in English becomes Cześć {firstName} in Polish — but if you want native-feeling personalisation, the name itself should be vocative-inflected. Most products skip this; the polished ones don’t.
Six steps from source repo to PL-PL build
Engineering-led handoff at every step. Same file format in, same file format out. We don’t change your build pipeline; we plug into it.
i18n audit
We review your schema, file format, plural categories and ICU support before quoting.
Pseudo-localization
We pseudo-localize a build to surface hard-coded strings, broken layouts and missing categories.
String translation
Native PL-PL linguist translates in your platform (Crowdin, Phrase, Lokalise) or your file format.
ISO 17100 revision
Independent native Polish reviser checks against source, terminology, style guide and locale rules.
In-context LQA
Linguistic QA on the actual UI — staging, mobile, game build — bugs filed in your tracker.
Continuous delivery
For ongoing products: webhook-driven retainer keeps every new string translated within agreed SLA.
We test the Polish UI on the actual screen — not in a CSV
Translation in a spreadsheet doesn’t catch what breaks at render time. After the linguistic pass, we run linguistic QA on the live UI: staging environment, native mobile build, game scene, or a Figma prototype if engineering hasn’t shipped yet.
Every issue is logged in your tracker (Jira, Linear, GitHub Issues) with the screenshot, string ID, plural index, locale variant, and a proposed fix the linguist already validated. Engineering ships, we re-verify, the bug closes.
- Truncation, wrapping, alignment, RTL/LTR collisions
- Plural index errors revealed at runtime
- Hard-coded English strings discovered late
- Locale-formatting bugs (date, number, currency)
- Diacritic rendering issues per font / per OS
- Vocative and inflection in personalised content
Three ways to engage
From a one-shot UI translation to a continuous-localization retainer for products shipping every week. ISO 17100 four-eyes is the baseline on every tier.
Engineering & PM questions
The eight questions buyers ask before signing a Polish localization vendor.
We work natively with gettext PO/POT, XLIFF (XLF, SDLXLIFF, MQXLIFF), .properties, .strings, .stringsdict, .resx, JSON, YAML, Android XML, iOS Localizable.strings, ICU MessageFormat and CSV. We handle Crowdin, Phrase, Lokalise, GitLocalize and Smartcat exports natively, and integrate via API for continuous workflows.
Polish has four plural categories under Unicode CLDR: one (1), few (2-4, 22-24, 32-34…), many (0, 5-21, 25-31…) and other (decimals like 1.5). We test all four cases for every plural-bearing string. If your source uses ICU MessageFormat or Android plurals XML we map directly. If your source only has English-style two plurals (one / other), we flag missing categories before translation begins so engineering can extend the schema.
Yes. We pseudo-localize a build before full Polish translation to surface hard-coded strings, broken layouts, missing plural categories, unsupported diacritics (ł, ą, ę, ż, ź, ć, ó, ś, ń) and CSS truncation. Pseudo-localization expands strings by ~30% and replaces letters with accented variants, which catches engineering issues early so the actual Polish localization runs cleanly.
Yes. After translation we run linguistic QA in the actual UI — staging environment, mobile device, or game build — to catch truncation, layout breaks, plural form errors, contextual mistranslations and locale-formatting issues. Bug reports go into your tracker (Jira, Linear, GitHub Issues, Asana) with screenshots, the broken string ID and a proposed fix.
Yes. We integrate directly via API with Crowdin, Phrase (Memsource), Lokalise, GitLocalize and Smartcat. New strings flow from your source repo to translators automatically; translated strings flow back into your localization platform. We also support webhook-driven workflows for continuous localization on every commit.
Polish UI string translation under ISO 17100 typically ranges from €0.10/word for simple in-product copy to €0.18/word for marketing screens, onboarding flows and legal-adjacent content (terms, privacy, consent UIs). Pseudo-localization, in-context LQA and Polish DTP are priced separately. Volume discounts apply over 50,000 source words. Continuous-localization retainers start at €1,500/month.
Yes. All projects are covered by a mutual NDA. Files exchange happens on encrypted EU-based servers (or via your localization platform), access is restricted to assigned linguists, and Aploq is GDPR-compliant. For pre-launch or sensitive products we can sign additional security addenda and process work on isolated terminals with no client data leaving the EU.
Internationalization (i18n) is the engineering work that lets your product be adapted to other locales — externalising strings, supporting Unicode, handling locale-aware date / number / currency formatting, plural rules and right-to-left layout. Localization (l10n) is the linguistic and cultural adaptation for a specific locale — translating UI strings into Polish (PL-PL), adjusting tone, handling cultural references and locale-specific formats. Translation is just the linguistic conversion of words. Aploq does localization; we recommend partners for the i18n engineering side if you need it.
Send the strings file. One hour later, you have a quote.
PO, XLIFF, JSON, .strings, Crowdin export — whatever you ship in. Fixed price, translator pairing, and a project plan back within EU business hours.
