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The Voidpen Blog

Eat smarter, track effortlessly

Honest guides, app comparisons, and the real science of calorie tracking — from the team building the easiest way to log food.

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Comparisons

Best AI Calorie Counter Apps in 2026 (Tested & Ranked)

We tested the top AI calorie counter apps of 2026 on accuracy, speed, and ease. Here's how photo-based trackers compare — and which one to pick.

7 min read
Fresh meal-prep containers with vegetables in warm light
Comparisons

5 Best MyFitnessPal Alternatives for Effortless Tracking (2026)

Tired of barcode scanning and a paywalled database? Here are 5 of the best MyFitnessPal alternatives in 2026 for faster, easier calorie tracking.

6 min read
A person photographing a plate of food with a smartphone
AI & Photo

Can AI Actually Count Calories From a Photo?

How accurate is AI calorie counting from a photo? We break down how it works, where it shines, where it struggles, and how to get reliable numbers.

6 min read
Smartphone photographing a breakfast plate from above
AI & Photo

How to Count Calories by Taking a Photo of Your Food

A step-by-step guide to counting calories from a photo: how to snap, what AI sees, how to fix estimates, and tips for fast, accurate food logging.

6 min read
A balanced plate of grilled chicken and vegetables in warm light
Guides

How Many Calories Should You Eat to Lose Weight?

Learn how many calories to eat to lose weight: how to estimate your TDEE, set a safe deficit, and actually hit your numbers without burning out.

6 min read
A relaxed person eating at a cafe with a phone, warm light
Effortless Tracking

Why Calorie Tracking Feels Tedious — and the Effortless Fix

Calorie tracking burns most people out within weeks. Here's why it feels so tedious — and how photo and voice logging make it effortless enough to stick.

6 min read