Lifesum vs Sunn
Short answer
Pick Lifesum if you want barcode scanning. Pick Sunn if you would rather log by sending a message in WhatsApp than open another app.
Side by side
Where you use it
Lifesum: The Lifesum app, with Apple Watch and Samsung Galaxy Watch sync
Sunn: Inside WhatsApp (and a web chat)
How you log a meal
Lifesum: Photo, voice, typing, barcode scan or quick tracking
Sunn: Send a photo or type it in the chat
Barcode scanning
Lifesum: Yes
Sunn: No
Free trial
Lifesum: No trial terms stated on the page checked
Sunn: 7-day free trial
Price
Lifesum: Not listed on its website; see the app store
Sunn: $14.99 a month, or $79.99 a year
Coaching in the chat
Lifesum: Not listed on the page checked
Sunn: Daily summaries, weekly reviews, answers to food questions
| Lifesum | Sunn | |
|---|---|---|
| Where you use it | The Lifesum app, with Apple Watch and Samsung Galaxy Watch sync | Inside WhatsApp (and a web chat) |
| How you log a meal | Photo, voice, typing, barcode scan or quick tracking | Send a photo or type it in the chat |
| Barcode scanning | Yes | No |
| Free trial | No trial terms stated on the page checked | 7-day free trial |
| Price | Not listed on its website; see the app store | $14.99 a month, or $79.99 a year |
| Coaching in the chat | Not listed on the page checked | Daily summaries, weekly reviews, answers to food questions |
Lifesum details read from its own site on 2026-10-12. Features and prices change; check the source before you decide.
Where Lifesum is the better choice
- Barcode scanner for millions of food items.
- Diet and meal plans including Mediterranean, Fasting and Keto.
- Voice logging as well as photo and typing.
- Syncs with Apple Watch and Samsung Galaxy Watch.
Where Sunn fits
Sunn is for people who quit tracking because logging felt like homework. You send a photo or type what you ate, and the reply comes back in the same chat. If a portion is off, you correct it by replying.
It also sends an evening summary on days you log and a weekly review. Photo estimates are approximate, and there is no barcode scanner. How a WhatsApp tracker works, and where it falls short →
See your calorie and protein target first
The free quiz shows both targets before it asks for anything else.
Take the free quizCommon questions
Is Sunn an alternative to Lifesum?
For tracking calories and macros, yes, with a different shape. Lifesum is a healthy eating app with meal plans, diets and several ways to log food. Sunn works inside WhatsApp, so there is no separate app to open. It has no barcode scanner. If you eat mostly packaged food and want label-exact numbers, Lifesum is the better fit.
Is Sunn cheaper than Lifesum?
Lifesum does not list a price on its website, so compare in the app store. Sunn is $14.99 a month, or $79.99 a year after a 7-day free trial.
Can I use both?
Yes. Some people use a database app when they need label-exact numbers and a chat tracker for the everyday habit. Nothing about Sunn stops you from keeping another app.