All App Stores Requirements in one place

Apple app store requirements

Following information can be changed/added only during the release of new version.

iOS/Mac App

      0.   App info 

1. App Name: up to 30 characters;
2. Subtitle: up to 30 characters;
3. Description: 4000 symbols;
4. What’s New: 4000 symbols – available only with app version update;
5. Promotional text: 170 symbols;
6. Keywords: limited to 100 characters total, with words separated by commas;
7. Privacy policy link, Support link, Marketing link;
8. Categories;
9. Icons – for developer needs;
10.  App Preview: between 15 and 30 seconds in length. Technical requirements;
11.  Screenshots: up to 10 screenshots Specifications iPhone 6,5”, iPhone 5,5” iPad 12,9”, iPad Pro 3 Gen – You must upload at least one screenshot of your app;
12.  Apple Watch: up to 10 screenshots Specifications;
13. In-app purchases: name: up to 30 symbols, description: up to 45 symbols,  promotional image (optional): 1024×1024 pixel + review screenshots (Pricing page from app): iOS requires at least 640 x 920 pixels, macOS requires 1280 x 800 pixels.

Apple Style Guide

https://help.apple.com/applestyleguide/#/apsg1a3a0436?sub=apd9aaca4623

Google Play Market Publish

New version release requires app build and “What’s new” information. All other info about the app can be changed anytime we need.

     0.  Important note: all words in fields below (1,2,3) considered as a Keyword;

1. App Name: 50 character limit;
2. Short description: 80 character limit;
3. Full description: 4000 character limit;
4. What’s new – 500 character limit;
5. Graphic assets; JPEG or 24-bit PNG (no alpha). Min length for any side: 320px. Max length for any side: 3840px. At least 2 screenshots are required overall. Max 8 screenshots per type. Hi-res icon 512 x 512 32-bit PNG (with alpha), Feature Graphic 1024 w x 500 h, JPG or 24-bit PNG (no alpha);
6. Category;
7. In-app purchases: name: up to 55 symbols, description: up to 80 symbols.

Windows App Store Requirements

1. App Name: up to 256 characters;
2. App Description: up to 10 000 characters, in most cases the right length is somewhere over 200 words, but well under 3 000;
3. What’s New: up to 1 500 characters;
4. App Features: up to 20 features, up to 200 characters each; (These are short summaries of your app’s key features. They are displayed to the customer as a bulleted list in your app’s Store listing, in addition to the Description);
5. Keywords: provide 7 keywords, one per box; 30 character limit for each keyword; Up to 3 words per keyword;
6. Desktop Screenshots (at least 4 screenshots): 1366×768 pixels or larger. Supports 4K images (3840×2160). (Will also be shown to customers on Surface Hub devices);
7. Mobile (if publishing for mobile): images must be one of the following: 1080×1920, 1920×1080, 768×1280, 1280×768, 720×1280, 1280×720, 800×480, or 480×800 pixels;
8. Store Logos: 9:16 Poster art (720×1080 or 1440×2160 pixels) up to 50mb;
9. App Icon: 300×300 PNG.

Chrome Web Store Requirements

1. App Name: 45 character limit (in Manifest);
2. Short description: 132 character limit (in Manifest);
3. Detailed description: 16 000 characters;
4. Icon: 128×128 total pixels; For square icons, use alpha to make 16 of the 128 pixels per side transparent (96×96 visual weight); For circular icons, the visual icon should be 112×112 (use alpha to make the remaining pixels transparent); For other icon shapes, use alpha to maintain the same 96×96 visual weight; Your icon should be flat; avoid noticeable perspective, 3D, and shadows. Don’t use text in your icon;
5. Screenshots: up to 5 1280×800 (preferred) or 640×400 each;
6. Promotional tile: small tile – 440×280; Large tile – 920×680 (optional); Marquee – 1400×560 (optional).

Amazon Store Requirements

1. Image Guidelines;
2. Name: no limit;
3. Release notes: up to 4000 symbols;
4. Display title: up to 250 symbols;
5. Short description: up to 1200 symbols;
6. Long description: up to 4000 symbols;
7. Product feature bullets: up to 10 key features of your app;
8. Summary: 145 symbols;
9. Keywords: comma-separated, minimum of 2 characters. Example: dark, cinema, noir. Limit 30 words.

Mozilla add-ons app store

1. https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/Listing;
2. Screens – 1280x800px max 5;
3. Description – recommended 250 characters;
4. Keywords – 20 max;
5. Summary – max 250 characters;
6. Icon – 32×32 and 64×64.

Edge Web Store Requirements

1. Logo – 300×300;
2. Small promotional tile Size: 440 x 280 pixels;
3. Screenshot – Up to 6 images showing how your extension works. Size: 1280×800 pixels;
4. Large promotional tile – Size: 1400×560 pixels;
5. Description – 10,000 characters;
6. Search terms – Up to 7 terms. 30 character limit for each term. No more than 21 separate words across all search terms.