Head to head
Scale for Grams vs Scale AI: Which Photo Scale App Should You Use?
Both apps point a camera at an object and return an AI weight estimate, and their names are confusingly similar. The practical differences: Scale for Grams also runs in any web browser, covers six scan modes, publishes its pricing, and has a 4.8★ public rating history — while Scale AI (by MWM) is an iPhone/iPad-only app whose App Store privacy label discloses tracking for third-party advertising.
Last updated July 10, 2026 · Scale for Grams is our app. Scale AI details are from its App Store listing as of that date.
Feature comparison
| Feature | Scale for Grams | Scale AI (MWM) |
|---|---|---|
| How it works | AI photo analysis | AI photo analysis |
| Platforms | iOS + any web browser | iPhone / iPad only |
| Web version (no download) | ✓ | — |
| Scan modes | Weight · calories · count · size · plant · currency | Weight-focused |
| Public App Store rating | 4.8★ (1,250+ ratings) | No rating overview yet |
| Pricing published on site | $6.99/wk or $49.99 lifetime | Free + unlisted in-app purchases |
| Third-party advertising in privacy label | — | "Data Used to Track You" incl. third-party advertising |
| Output units | g · kg · lb · oz | g (per listing) |
| Free tier | ✓ | ✓ |
| Money-back guarantee | 30 days on Lifetime (web) | Not advertised |
Choose Scale for Grams if…
- · You want to try it in a browser first, with no download
- · You also want calories, dimensions, counts, plant or coin ID
- · You prefer an app with a public 4.8★ rating history
- · You want published pricing and a 30-day money-back guarantee
- · You'd rather not be tracked for third-party advertising
Scale AI may suit you if…
- · You specifically want MWM's app catalog ecosystem
- · You only need occasional weight-only scans on iPhone/iPad
- · You don't mind ad-tracking disclosures in exchange for a free tier
Frequently asked questions
Is Scale AI the same app as Scale for Grams?
No. They are different apps by different developers that solve the same problem — estimating weight from a photo. Scale for Grams (this site) runs on iOS and in any web browser; Scale AI : Scale for grams is an iPhone/iPad app by MWM. The similar names cause real confusion, which is why this page exists.
Which app is more accurate?
Both produce AI estimates, not certified measurements. Scale for Grams is typically within 10–20% for common household objects, and it is the only one of the two with a large public track record — 4.8 stars across more than 1,250 App Store ratings. Scale AI had not yet accumulated enough public ratings for an App Store overview as of July 2026, so its real-world accuracy is harder to verify.
Does Scale AI have a web version?
No. Scale AI is distributed only through the Apple App Store for iPhone and iPad. Scale for Grams works as a website at scaleforgrams.com on any device with a camera or photo library — no download required — as well as a native iOS app.
What does "Data Used to Track You" mean on Scale AI’s listing?
It is Apple’s standard privacy label. Scale AI’s App Store listing discloses data used to track you across apps and websites, including for third-party advertising. Scale for Grams is monetized by subscriptions and a lifetime purchase instead of advertising, and its listing carries no third-party-advertising tracking disclosure.
Compare them yourself — ours runs right here
No download needed: photograph any object and get its estimated weight in grams, kg, lbs and oz.
Weigh something with a photo