I once stalled the moment I tried to add just one more language to an app I ship overseas. Japanese and English were manageable, but the instant German and Turkish joined the list, the whole morning dissolved into bouncing between a translation tool, the store console, and a text editor.
In July 2026, Fill with Gemini in Google Sheets widened its coverage to 28 languages. Chinese, Dutch, Malay, Hebrew, Polish, Turkish and more were added, so a single natural-language prompt can fill an entire column with translations for each language at once.
What pulled me in was not the translation quality itself but one detail: the work stays inside a single sheet. Store metadata, where rows split into title, short description, full description and release notes while columns line up by language, is a natural fit for a spreadsheet. This article walks through how I build that one sheet, and where I deliberately stop and use my own eyes.
Why a Sheet Instead of a Translation Tool
Multilingual store copy carries constraints that have nothing to do with translation accuracy. Titles have character limits, keyword fields want terms people actually search, and full descriptions render line breaks and list markers literally. Managing these "requirements outside the translation" in a one-input, one-output translation screen is tiring.
In a spreadsheet, you can place a column per language next to the source, and add a column that counts characters right beside that. Translation, constraint checking, and the final copy-paste source all sit on the same sheet. Fill with Gemini takes on the job of filling that translation column in one pass from a plain prompt.
How to Build the One Sheet
Putting the items to translate in rows and the languages in columns is the easiest layout to work with. I use a structure like this.
| Row (item) | ja (source) | en | de | tr | Rough limit |
|---|---|---|---|---|---|
| App name | enter source | Fill target | Fill target | Fill target | ~30 chars |
| Short description | enter source | Fill target | Fill target | Fill target | ~80 chars |
| Full description | enter source | Fill target | Fill target | Fill target | ~4000 chars |
| Release notes | enter source | Fill target | Fill target | Fill target | ~500 chars |
Fill the source column first, then select the range you want translated and call Fill with Gemini. The trick is not to simply ask it to "translate" but to fold the constraints into the instruction. Something like: "Translate the Japanese to my left into each column's language. Keep the app name under 30 characters, use no symbols or emoji, and stay factual without promotional exaggeration."
For character counts, keeping =LEN() to the right of each translation column makes overflows obvious at a glance. Add conditional formatting so only the languages over the limit turn red, and right after a Fill you can immediately see which cells need trimming.
Keeping Machine Translation From Shipping Unchecked
This is the part that matters most. Fill with Gemini output is plenty good as a first draft, but in my experience it is too early to paste straight into a store. Three points in particular I stop and check by hand, language by language.
First, proper nouns and feature names. Your own app name or custom feature names sometimes get dutifully translated too. Listing "keep the following terms as-is" in the prompt keeps those from breaking.
Second, how the character count actually looks. =LEN() counts characters, but in a language like German where words run long, the same count can look cramped in the store. Rather than aiming for the exact limit, leaving a little slack is safer.
Third, whether the keywords sound natural. Translating a term that gets searched in Japanese does not mean speakers of that language type the same thing. This is a matter of local search habits rather than translation accuracy, so for the major languages at least, I glance at how similar apps phrase things locally before finalizing.
Making verification a habit for formulas and data is the same posture I described in Using Gemini in Sheets' One-Click Formula Fix Without Trusting It Blindly: take AI output as a draft and confirm the final version yourself. With translation too, not skipping that one step turns out to be the faster route.
Reuse It on Every Release
Once this sheet exists, each update just means rewriting the source column and re-running Fill to refresh drafts for every language. In my case I only swap the changed points in the release notes, so the loop — edit source, run Fill, clear the red overflows, check proper nouns per language — now takes about fifteen minutes. Compared with the old "the morning dissolves" feeling, the friction has dropped noticeably.
The same idea extends to post-launch support. I wrote up managing multilingual review replies in a sheet in Replying to 11 Languages of Google Play Reviews With Gemini Without Sounding Like a Bot. Using the same language-column layout for both metadata and review replies means less mental switching, too.
Where to Lean on It, and Where Not To
The 28-language reach of Fill with Gemini genuinely lightens the entry point for anyone shipping an app abroad on their own. But the convenience only reaches "line up the drafts." The final call on the words that go public stays in your hands, as it always has.
My view is that if the reason you hesitate to add a language was "it's a hassle," this feature erases one of those reasons. What it does not take over is the responsibility of confirming how the words land for speakers of that language. What to delegate, and what to stop and check yourself — deciding that line up front lets you approach localization far more calmly.
I am still finding my way with it, but building one sheet showed me I can add languages more casually than I expected. I hope this gives you a nudge to build your first sheet. Thank you for reading.