Verithiathe honest score on any app
Updated July 2026 · real, multi-region App Store reviews
Head-to-head

Lifesum vs Cal AI

Lifesum 4.6★ · Free + IAP 65
Winner Cal AI
Cal AI 4.8★ · Free + IAP 75

Choose Cal AI for a more reliable and user-friendly experience.

Cal AI has a higher overall rating and generally more positive feedback regarding its functionality and user experience compared to Lifesum. While both apps have their issues, users of Cal AI report better accuracy and fewer bugs, making it a preferable choice for calorie tracking.

Head to head

features edge: Cal AIR1R4R62R78
Lifesum Lifesum users report issues with AI inaccuracies and limited recipe options R1R4.
Cal AI Cal AI users appreciate its AI accuracy and functionality, although some mention a weak food database R62R78.
ease of use edge: Cal AIR1R4R63R67
Lifesum Lifesum users often find the app glitchy and frustrating, especially with the new AI features R1R4.
Cal AI Cal AI is generally seen as user-friendly, although some users mention sync issues R63R67.
reliability edge: Cal AIR28R31R67R90
Lifesum Lifesum has received multiple complaints about data loss and bugs R28R31.
Cal AI Cal AI users report occasional freezing but overall find it more reliable R67R90.
price/value edge: LifesumR7R14R61R82
Lifesum Lifesum offers a free version, but many users find the ads intrusive and the premium features lacking R7R14.
Cal AI Cal AI requires payment upfront and has been criticized for its pricing structure R61R82.
support tieR28R40R61R100
Lifesum Lifesum users have reported poor customer service experiences R28R40.
Cal AI Cal AI users also mention issues with customer service, particularly regarding billing R61R100.
Pick Lifesum if

you prefer a free version and are willing to tolerate ads and some bugs.

Pick Cal AI if

you want a more polished experience and are okay with paying for a subscription.

Evidence note: While Lifesum has a long history and many positive reviews, recent feedback has skewed negative, particularly regarding its new AI features. Cal AI has a higher lifetime rating and generally more favorable recent reviews.

Frequently asked

Is there a free version of Cal AI?
No, Cal AI requires payment to access its features, while Lifesum offers a free version with ads and limited functionality.

What reviewers actually said

Built only from these 120 real reviews (foreign ones translated). Superscripts jump to the quote here. Apple has no per-review links, so [ref] opens that app's reviews on the App Store.

  1. [R1] Lifesum 1/5 · US Ai Ruined This App: I’ve used this app on and off for years and loved it. However, with the introduction of Ai to the tracking, it’s become wildly inaccurate. I can tell it the same item from one day to another and get completely different nutrition results. Not a small margin of error but massive swings. Then, you have to take the time to go and adjust every single meal. It. Becomes so time consu
  2. [R4] Lifesum 2/5 · US Useless! Incorrect macros even when you scan a label: I scanned multiple labels and each time the carbs and protein and calories were input differently than the nutrition label shows them. The app doesn’t allow you to edit that info so tracking your macros with this app results in inaccurate data
  3. [R62] Cal AI 5/5 · US 5 star: Works really well helped me lose weight I will recommend
  4. [R78] Cal AI 3/5 · US Great App - But Needs Improvement: First of all, the aesthetic of this app is fantastic. The AI is also shockingly accurate. HOWEVER, the food database needs a drastic improvement. If you travel and you have to eat out a lot, easy things like a McDonald’s Burger with no bun are not in this system. There’s an only a few fast food items and they all seem to have odd names associated with them. Im gi
  5. [R63] Cal AI 3/5 · US Synch issues: I really like this app after using MyFitnessPal for years I tried Cal AI and I really like it a lot. The issue is the sync to apple health is unreliable. It syncs some entries and not others. so until they figure that out I’m going back to my fitness pal
  6. [R67] Cal AI 2/5 · US Freezes a lot: I give this app a 2, it’s great when it works but it’s freezes constantly. Please fix the freezing problem!!
  7. [R28] Lifesum 1/5 · US 10 months, great. Last two not so much.: I appreciate the year long subscription to this app. I used it daily and directly credit it with positive lifestyle changes. That said, the last two months were unreliable. My logs were corrupted - sometime saved, sometimes not, sometimes absent entirely (not just the present day, but weeks of data would go missing). Multiple attempts to reach out to c
  8. [R31] Lifesum 2/5 · US Please fix this app full of glitches: Was a great app until it became almost unusable. The app freezes when I open it making me wait at least a minute to log anything. The search results can be a little wonky or the macros are often wrong in some scannable products. Finally I’ll go to log in food but it doesn’t load for hours. Also i get hit with an ad to upgrade the app to premium EVERY SINGLE TI
  9. [R90] Cal AI 3/5 · US Buggy: App works ok for tracking my food but the last week I’ve been using it it just keeps freezing.
  10. [R7] Lifesum 2/5 · US Pop ups are so irritating: I have used this app for years both the free version and the paid version. I love it, it does everything I want it to and is easy to use. However, currently I am using the free version and the amount of pop ups to subscribe is intolerable to the point I don’t use it. Every time you open the app there is an ad to subscribe that takes ages to load. I just want to track my
  11. [R14] Lifesum 4/5 · US This is how I keep myself accountable: I love this app, but the only thing I don’t like is that you have to pay for the advanced options but you have to do that with any app so it’s really not that big of a deal I suppose.
  12. [R61] Cal AI 1/5 · US Misleading Trial offer!: When I clicked 3 day trial it charged me 29.99. I tried to reach out to customer service and they didn’t reply.
  13. [R82] Cal AI 1/5 · US Not free: I came into this app thinking I was going to lose weight but the only thing they want you to lose is money
  14. [R40] Lifesum 1/5 · US Waste of money!: So I purchased the subscription for a year, don’t remember how much it was. Then after using it for a few weeks or a few months the I noticed I was staying below my calories and still gaining weight. So I downloaded a different app and the cals were off on Lifesum by a lot. I emailed them asking for a refund and never got a response back. So yeah don’t waste your money.
  15. [R100] Cal AI 1/5 · US Rip off: I subscribed to the app, which was $30. I attempted to cancel (within the free period) and it still charged me $30 for the purchase. I emailed and tried to contact customer service in order to receive a refund and they did not email back. Do not use. I would not recommend to anyone.

Synthesized from 120 recent App Store reviews · updated July 2026 · View on the App Store