Quick verdict
Pick YAZIO if you want the budget option with a large recipe library and proper intermittent fasting plans. Pick Lifesum if you want structured diet plans like Keto or Paleo wrapped in a polished, well-designed interface. But for most people, Calally is the better choice: it adds a personal AI coach on your own data plus voice logging, so tracking takes seconds and you actually get told what to do next.
YAZIO and Lifesum are two popular European apps that approach the same goal from different angles. YAZIO leans on value and structure: PRO is around 47.90/yr as of June 2026, one of the cheapest premium trackers, with a strong recipe library and built-in intermittent fasting plans. Lifesum leans on design and guidance: a polished interface wrapped around structured diet plans like Keto, Paleo, High-Protein, and Vegan, at around 44.99/yr. Both are capable apps, and both still ask you to log every meal by hand.
That manual habit is where most people quit. Calally is the third way: a personal AI coach that reads your full eating history 24/7, plus voice logging that turns a spoken sentence into logged macros in seconds. You skip the search-and-tap grind, and you get guidance instead of plans you have to follow alone. Here's what Calally is before we compare the three head to head.
YAZIO vs Lifesum at a glance
| Feature | Calally | YAZIO | Lifesum |
|---|---|---|---|
| AI coach on your data | ✅ 24/7 personal coach | ❌ None | ❌ None |
| Primary logging | ✅ Voice, AI macros, one tap | ⚠️ Manual search | ⚠️ Manual search |
| Fasting plans | ⚠️ Coach-guided | ✅ Structured fasting | ⚠️ Limited |
| Diet plans | ⚠️ Coach-guided | ⚠️ Recipe-focused | ✅ Keto, Paleo, Vegan |
| Free tier | ✅ Full trial | ⚠️ Usable, limited | ❌ Demo only |
| Price | Free trial, then paid | ~47.90/yr PRO | ~44.99/yr Premium |
On pricing accuracy
Pricing and tier features are as of June 2026, taken from each app's official site. Plans change often; we review these comparisons quarterly.
Does either app coach you?
No. Neither YAZIO nor Lifesum coaches you. They hand you plans, recipes, and charts, but the thinking is still left to you. You decide what to adjust, when, and why. Guided content helps you start, yet a fasting timer or a Keto plan can't react when your week goes sideways or you stall for no obvious reason.
Calally is built the other way around. The AI coach has full access to your eating data and is available 24/7, so it answers real questions: "Why am I not losing?" or "What should dinner look like tonight?" Here's how an AI nutrition coach differs from a passive tracker with plans bolted on.
YAZIO vs Lifesum: fasting or diet plans?
This is the core of the head-to-head. YAZIO wins on fasting and value. It ships structured intermittent fasting plans and a large recipe library at around 47.90/yr, one of the cheapest premium prices in the category. Its free tier is also usable rather than a teaser, so you can test it properly.
Lifesum wins on guided diet plans and design. Keto, Paleo, High-Protein, and Vegan programs come in a polished, well-designed interface that's genuinely pleasant to use. The catch is the free tier: it's essentially a demo, so you hit the paywall fast. Both apps, though, still depend on manual logging for every meal.
How does logging compare?
Both YAZIO and Lifesum are manual: you search, pick, confirm portions, repeat. The plans and recipes are nicer than a bare spreadsheet, but the daily logging work is the same. That friction adds up, and friction is the top reason people quit calorie tracking within a few weeks.
Calally removes that friction. You describe a meal out loud, the AI extracts ingredients and macros, and you log it with one tap. Voice logging is the default, not a premium add-on. Less typing means you actually keep the habit going past week two, plans or no plans.
Which should you choose?
Be honest about your priority. Choose YAZIO if fasting and value matter most, around 47.90/yr with recipes and fasting plans built in. Choose Lifesum if you want structured diet plans and a polished design, around 44.99/yr, and don't mind a thin free tier. Both are solid guided trackers with no coach.
For most people, though, Calally is the better choice. The personal AI coach plus voice logging means you spend seconds logging and actually get told what to do next, with a free trial that includes everything. Dig deeper with Calally vs YAZIO, Calally vs Lifesum, or the broader list of MyFitnessPal alternatives.
