# PlateMath: Snap Calories — Private meal photo estimates

> Private meal photo estimates (iPhone/iPad app by Robert Corbin.)

- Source: https://appshunter.io/ios/app/platemath-snap-calories/id6775257927 (this page in markdown: same URL + `.md`)
- Developer: [Robert Corbin](https://appshunter.io/developer/1890247992)
- Category: Food & Drink, Lifestyle
- Price: $0.99 (on sale, was $1.99)
- Age rating: 4+
- Requires: iOS 26.0 · 6 MB
- Languages: American English
- Released: 2026-06-16
- Data updated: 2026-08-19
- User reviews in markdown: https://appshunter.io/ios/app/platemath-snap-calories/id6775257927/reviews.md

## What is PlateMath?

PlateMath is a private, on-device meal photo estimator and comparison journal for everyday nutrition awareness.

Photograph a meal and PlateMath produces a readable calorie range, food breakdown, macro estimate, and confidence context without uploading the photo to a developer server. Apple Intelligence is used when available; a deterministic local Vision workflow keeps the core experience useful on supported devices when the model is unavailable.

PHOTO-BASED MEAL ESTIMATES
- Capture a meal with the camera
- Review detected foods, portions, calorie ranges, and macros
- See low-to-high ranges instead of a false exact number
- Check confidence and uncertainty before saving
- Review hidden-calorie prompts and macro cross-checks in Estimate Audit

NEW: CALIBRATION LAB
- Revisit any saved estimate after learning more about the meal
- Record whether the estimate seemed high, low, or close
- Add an optional known calorie total from a label, weighed portion, recipe, or other evidence
- Save confidence and notes in a private comparison journal
- See aggregate evidence count, confidence, and known-value bias over time
- Delete individual reviews or clear them with their linked meal history

HISTORY AND TRENDS
- Save meal notes and estimates locally
- Review daily calorie and macro totals
- Explore seven-day trends and recent meals
- Set a personal daily reference goal
- Schedule optional local meal reminders

TRANSPARENT BY DESIGN
- Public USDA and FDA nutrition references are linked in Settings
- No account, subscription, ads, analytics, or developer-operated server
- Meal photos, estimates, history, and calibration reviews remain on the device
- No automatic model training from your calibration journal

PlateMath provides general nutrition estimates for informational use only. Photo-based estimates can be wrong and are not a substitute for food labels, measured portions, or professional dietary or health guidance.


## Version history (last 4 releases)

### 1.3 — 2026-08-12

PlateMath 1.3 adds a real, persistent Calibration Lab for learning from saved estimates:

- Compare any saved meal with a label, weighed portion, recipe, or later knowledge
- Record whether an estimate was high, low, or close, plus confidence and notes
- Track evidence count, average confidence, and known-value bias over time
- Open calibration from the home toolbar or a saved result
- Keep calibration entries linked to local meal history for consistent deletion
- Improved meal selection, large-text layouts, VoiceOver labels, history details, and test coverage
- Removed dormant cloud-sync code so the implementation matches the on-device privacy promise

### 1.2 — 2026-06-27

PlateMath 1.2 adds Estimate Audit, a pro review layer for every meal estimate.

- New range-width check explains when photo portions are uncertain
- New macro cross-check compares macro-derived calories against the plate total
- New hidden-calorie prompts flag sauces, oils, toppings, desserts, and drinks
- Added in-app USDA and FDA nutrition reference links
- Reworded nutrition notices for clearer App Store compliance
- Polished result-card hierarchy for faster review after capture

### 1.1 — 2026-06-23

What's New - PlateMath 1.1

Weekly Trends
A new 7-day calorie bar chart shows your daily intake stacked against your personal goal. The chart appears on the home screen and in a dedicated Weekly Trends view accessible from the History menu. You also get your daily average, how many days you hit your goal, and a 7-day protein/carbs/fat macro breakdown - all computed on device from your existing history.

Swipe to delete
You can now remove a single plate from your history by swiping left on its row. Previously only a full history clear was available, so one stray capture would persist forever. This gives you precise control without touching the rest of your log.

### 1.0 — 2026-06-16

No release notes.

## Apps similar to PlateMath

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Fityazeo](https://appshunter.io/ios/app/fityazeo/id6757637682) | — | Free | Food & Drink |
| [Caloi: Calorie Scanner](https://appshunter.io/ios/app/caloi-calorie-scanner/id6760656349) | — | Free | Food & Drink |
| [Cooking Assistant AI - Zesto](https://appshunter.io/ios/app/cooking-assistant-ai-zesto/id6584520256) | 4.9 (7) | Free | Food & Drink |
| [Drnkshot](https://appshunter.io/ios/app/drnkshot/id6760490394) | — | Free | Food & Drink |
| [XIV Restaurant](https://appshunter.io/ios/app/xiv-restaurant/id6449749089) | 1.0 (1) | Free | Food & Drink |
| [Recipe Keeper - Meal Planner](https://appshunter.io/ios/app/recipe-keeper-meal-planner/id6757077403) | — | Free | Food & Drink |

## More apps by Robert Corbin

- [Daily Word Journey](https://appshunter.io/ios/app/daily-word-journey/id6761548266)
- [Hush Secret Text](https://appshunter.io/ios/app/hush-secret-text/id6761658175)
- [Renew Guard](https://appshunter.io/ios/app/renew-guard/id6761755447)
- [Receipt to PDF](https://appshunter.io/ios/app/receipt-to-pdf/id6761782025)
- [Route Your Pay](https://appshunter.io/ios/app/route-your-pay/id6761783719)
- [Tip Arbiter](https://appshunter.io/ios/app/tip-arbiter/id6761786879)

All apps by Robert Corbin: https://appshunter.io/developer/1890247992

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-19.*