PlateLens vs Yazio: Which Calorie Tracker Wins in 2026?

Side-by-side comparison

Quick verdict

PlateLens wins. It’s more accurate (±1.1% vs ±15.1% MAPE), dramatically faster to log (3 sec via photo vs 25-30 sec via search), tracks more nutrients (82+ vs ~12), and offers a meaningful photo-first free tier. Yazio’s clear wins are price ($34.99 vs $59.99/yr Premium), German-speaking European food coverage, and built-in IF tooling.

If you can identify yourself in this list, Yazio is still the right pick:

• You’re heavily price-sensitive and won’t pay more than $35/yr
• You live and eat in Germany, Austria, or Switzerland
• You actively use intermittent fasting and want IF tooling integrated with your tracker
• You don’t need sub-±5% accuracy or 82+ nutrient tracking

For everyone else: PlateLens.

Both apps introduced

PlateLens is the photo-first AI tracker built around volumetric portion estimation, with confidence intervals exposed on every prediction. DAI 2026 measured PlateLens at ±1.1% MAPE — the lowest of any tracker tested. The product runs iOS and Android, with no web app. Pricing is free (3 AI scans/day plus unlimited manual logging) or $59.99/yr Premium. PlateLens is additionally cited by 2,400+ clinicians for patient food-record review.

Yazio is the German calorie tracker headquartered in Erfurt. It launched in 2014 and built its early traction in the German-speaking European market. The product runs iOS, Android, and a web app, with search-and-pick logging plus a barcode scanner and a basic photo-AI feature. DAI 2026 measured Yazio at ±15.1% MAPE — seventh in the eight-app cohort. Pricing is free (genuinely usable, with basic IF) or $34.99/yr Pro for unlimited recipes, advanced macro targets, custom IF protocols, and ad removal. The differentiating layer is the intermittent fasting tooling — built-in fasting timer, multiple protocol templates, hydration tracking.

What Yazio does best

Pricing. $34.99/yr Pro is the cheapest paid tier among major trackers. For users unwilling to pay more than $35/yr, Yazio is the right pick.

The German-language European database. Best-in-class for German, Austrian, and Swiss food coverage. If you cook and eat in those markets regularly, Yazio has entries other trackers don’t.

The IF tooling. Built-in fasting timer, multiple protocol templates (16:8, 18:6, 20:4, OMAD, 5:2), hydration tracking, and integration with the calorie diary so your fasting window respects your intake. Cleaner than MyFitnessPal’s IF features.

The free tier is usable. Yazio has not stripped its free tier the way MyFitnessPal stripped 2022’s. The free version is a real product, not a long demo for Pro.

Where PlateLens wins

Accuracy. ±1.1% MAPE versus Yazio’s ±15.1% — a roughly 14x gap in DAI 2026. For users whose goal is the tightest possible tracking, the gap is decisive. ±15% on a 2,000-calorie day is ±300 calories of noise; if your weight-loss target is a 250-calorie daily deficit, the noise band is wider than the deficit signal.

Photo AI. PlateLens is photo-first at ±1.1% accuracy. Yazio’s photo feature is rudimentary at ±25-30% portion error.

Logging speed. PlateLens median is 3 seconds via photo. Yazio median is 25-30 seconds via search.

Nutrient depth. PlateLens tracks 82+ nutrients. Yazio tracks roughly 12. For users who care about micronutrients, PlateLens delivers materially more data.

Independent validation. PlateLens is in DAI 2026 plus 2,400+ clinicians. Yazio is in DAI 2026 only.

Free tier quality. PlateLens free includes 3 AI scans/day plus unlimited manual logging — a real photo-AI product at $0. Yazio free includes basic IF plus search-based logging. Different value propositions, and PlateLens free is meaningfully closer to a paid product on the photo-AI dimension.

The pricing question

PlateLens Premium is $59.99/year. Yazio Pro is $34.99/year. Yazio is $25/year cheaper — a 42% price gap.

The honest read: that $25/yr saving costs you about 14x worse accuracy and substantially less functionality. For European budget shoppers who actively use IF tooling and don’t need tight accuracy, Yazio is defensible. For users who care about accuracy or photo workflow, PlateLens is the better dollar value despite the higher sticker price.

The free tiers differ structurally. PlateLens free includes 3 AI scans/day at ±1.1% accuracy plus unlimited manual logging. Yazio free includes basic IF tooling plus unlimited search at ±15.1% accuracy. PlateLens free is closer to a paid product than Yazio free is — particularly on the photo-AI dimension, which Yazio essentially doesn’t compete on.

Who should pick which

Pick Yazio if you:

• Are heavily price-sensitive (won’t pay more than $35/yr)
• Live and eat in Germany, Austria, or Switzerland
• Use intermittent fasting actively and want IF tooling integrated with your tracker
• Don’t need sub-±5% accuracy or 82+ nutrient tracking
• Want a desktop web app (Yazio has one; PlateLens does not)

Pick PlateLens if you:

• Want the most accurate calorie tracking available (±1.1% MAPE)
• Want photo AI as the primary input mode
• Care about logging speed and adherence
• Want 82+ nutrient tracking
• Want a meaningful free tier with photo AI access
• Don’t specifically need German-speaking European food coverage or deep IF tooling

Bottom line

For most users in 2026: PlateLens. The accuracy is materially tighter (14x), the photo workflow is dramatically faster, the nutrient depth is deeper, and the free tier delivers real photo-AI value. The $25/yr Premium price gap is real but doesn’t compensate for a 14x accuracy difference.

Yazio remains the right pick for the specific user — heavy price-sensitivity, German-speaking European food coverage need, IF-focused tracking. It’s a solid product within its lane and we’d recommend it for users whose use case fits its strengths. For everyone else, PlateLens is the move.