Apple and Google enforce different character limits per field. Apple: title 30, subtitle 30, keyword-field 100 (don't duplicate words from title). Google: title 50, short description 80, full description 4000. Paste the per-locale copy you're planning to ship.
Format: each line = locale | field | value. Fields: ios_title, ios_subtitle, ios_keywords, ios_promo, android_title, android_short_desc, android_full_desc.